✅ Explanation: Riboflavin deficiency is the primary cause of curled toe paralysis in poultry. This condition affects the nervous system, leading to the characteristic curling of toes.📌 Other Options Explanations:● Niacin (B3): Deficiency leads to pellagra in humans.● Thiamine (B1): Deficiency causes beriberi, characterized by neurological and cardiovascular symptoms.● Pyridoxine (B6): Deficiency results in various neurological and skin issues.Important Key Points  Curled toe paralysis is caused by riboflavin (vitamin B2) deficiency in young chicks. It is one of the most characteristic signs associated with vitamin deficiency, resulting in the curling of the chick's toes. Occurs in chicks fed outdated or improperly stored starter feed, or who are bred from parents with riboflavin- deficient diet. Chicks that are fed riboflavin- deficient diet will begin to show signs at about 8 to 14 days following hatch. Affected chicks soon become reluctant to move, followed by intermittent flexing and inward curling of toes.​Additional Information Prevention: Ensure any adult chickens intended for breeding are receiving enough riboflavin in their diet (10 - 16 mg/kg). Feed newly hatched chicks a fresh bag of starter chicken feed (not feed that has been stored for longer than 2 months), with additional riboflavin food sources during the two weeks of life. During warm weather, provide supplemental sources of riboflavin. Store feed in a sealed plastic container located away from direct sunlight.

✅ Explanation: Parakeratosis is a skin condition characterized by abnormal keratinization of the skin cells. Zinc plays a crucial role in normal skin cell growth and development. When there is a zinc deficiency, the skin cells don't mature properly, leading to parakeratosis. This condition manifests as scaly, dry, and often inflamed skin.📌 Other Options Explanations:● Rickets: Caused by vitamin D deficiency.● Perosis: Primarily due to biotin or manganese deficiency.● Anaemia: Can be caused by iron deficiency.Additional Information  Vitamin A: o This vitamin is vital for growth and development.o It basically helps in immune function, vitamin a is also an antioxidant.o It is an essential nutrient for healthy vision, skeletal tissue, and teeth. o It is basically found in carrots, eggs, butter, milk, and cheese. Vitamin B:o Vitamin B is classified into 12 categories.o The important are vitamin B1(thiamine) if there is any deficiency then it causes beriberi and then vitamin B12, cobalamin it causes pernicious anaemia and vitamin B2, rIboflavin it deficiency causes ariboflavinosis.o Vitamin B is abundantly found in meats. Vitamin C:o It is an antioxidant.o It helps in immune function.o The deficiency of vitamin C causes scurvy.o Vitamin C is richly found in green leafy vegetables like broccoli, orange, lemon, papaya, strawberries, etc. Vitamin D:o Vitamin D is essential for bones.o Vitamin D deficiency causes rickets.o The intake of diet rich in calcium, phosphates, fish, beef liver, cheese yolks.

✅ Explanation: Thyroxine, a crucial thyroid hormone, requires iodine for its production. It plays a vital role in metabolism, growth, and development.📌 Other Options Explanations:● Oxytocin: Involved in childbirth and milk letdown.● Oestrogen: A female sex hormone.● Androgen: Male sex hormone.Key Points Thyroid gland:o The thyroid gland is known to be the largest endocrine gland.o The thyroid gland is a bilobed, high vascular organ.o The thyroid gland is composed of follicles (round in shape) and stromal tissues. o Each thyroid follicle is composed of follicular cells, enclosing a cavity. o Iodine is an important constituent of Thyroxine because it regulates the synthesis of thyroxine in thyroid glands. Hence, Option 3 is correct.o Iodine (in diet) is essential for the normal rate of hormone synthesis in the thyroid. o Deficiency of iodine in our diet results in hypothyroidism and enlargement of the thyroid gland commonly called goitre.o When the rate of synthesis and secretion of thyroid hormones is increased to abnormally high levels then this condition is known as Hyperthyroidism. It adversely affects the body physiology of an organism.Additional Information Thyroxine hormone has the following functions in humans:o They maintain the basal metabolic rate of the body.o They promote the growth of body tissues and the development of mental faculties.o They stimulate tissue differentiation.o Thyroxine also controls the working of kidneys. Its deficiency results in decreased urine output and vice-versa.

✅ Explanation: The rumen is the largest compartment of a cow's stomach, constituting about 80% of its total capacity. It houses microorganisms essential for digestion.Key Points Generally, the four-chambered rumen is found in Cattle, Sheep, Deer, Goat. Except for Camel Which has three-chambered rumen.Important Points Rumen: In this feed is subjected to microbial fermentation. In ruminants, this enlarged part is the biggest compartment in their four-chambered stomach. The temperature of the rumen is 38-40 degrees C. This is ideal for the growth of micro-organisms and they flourish as they are grown in an incubator. Reticulum: It is a smaller sac partially separated from the rumen. This organ has a thick well-resembling honeycomb. The contents of rumen and reticulum mix freely. The reticulum is connected to the omasum, the third compartment of the stomach through an opening on the right side of the reticulum. Omasum: This organ has many layers of muscular leaves giving it the resemblance to a book. After fermentation, the ingest passes through the reticule-omasal orifice into the omasum. With the help of muscular leaves having horny papillae, the ingesta is squeezed out. Water and fatty acid so squeeze out are absorbed. Abomasum: It is the true stomach in the ruminant. From this organ onwards the digestion taking place in ruminants is similar to that of non-ruminants.

✅ Explanation: The average weight of one cubic foot of silage in a trench silo typically ranges between 20 to 25 kg, depending on the type of forage, its moisture content, and the degree of compaction. Trench silos are designed to store silage with good compaction, which increases density and reduces air pockets, helping to preserve the feed quality.

✅ Explanation: The approximate calcium content in an animal's body is around 1.3%. Calcium is crucial for various bodily functions, including bone health, muscle contraction, and nerve function.Additional Information Inorganic elementsAnimal body contains many minerals. The amount of mineral in animal body vary which depend on the function of the particular part of the body. Concentration of some minerals in animal body is as follows:Calcium - 1.3%, Phosphorus - 0.7%Sodium - 0.16%, Potassium - 0.19%Magnesium - 0.04%, Sulphur - 0.15%Calcium is the mineral that occurs in largest amount in the body and is almost entirely present in bones and teeth. Phosphorus is present in bones in close association with calcium. Phosphorus is also present in association with proteins, fats and other inorganic salts. Na, K and Cl are present in inorganic form in various fluids. Other minerals form component of tissues, fluids or enzymes.

✅ Explanation: Fish oil, particularly cod liver oil, is one of the richest natural sources of Vitamin A. It contains a significantly higher concentration of Vitamin A compared to other foods listed in the options. Vitamin A is a fat-soluble vitamin crucial for vision, immune function, and skin health, and fish oil provides it in a highly bioavailable form.Important PointsVitamin A, chemical name is Retinol and The deficiency of Vitamin A is Nyctalopia.Vitamin B, which traditionally have been grouped together because of loose similarities in their properties.Vitamin B is soluble in water. The complex includes pantothenic acid, niacin, biotin, folic acid, riboflavin (vitamin B2), thiamin (vitamin B1), vitamin B6, and vitamin B12 (cobalamin). Rice, Green leafy vegetables, soybean, egg, chicken, almonds are the main sources of vitamin B.Vitamin C, chemical name is Ascorbic acid,The deficiency of Vitamin C is scurvy.The main sources of Vitamin C are sour juicy fruit, tomato, green leafy vegetables, etc.Vitamin D, Chemical name is Calfiferol and soluble in fat.The deficiency of vitamin Din Childs is Rickets and in adults Is Osteiomalasia.The sources of vitamin d are butter, ghee, eggs, fish oil, etc.Additional InformationVitamin K, the chemical name is piloquilone, vitamin K is soluble in Fat.The deficiency of vitamin K in the body leads to an increase in clotting time of the blood.Vitamin E, chemical name is Tocopherol, which is an antioxidant vitamin.It is a fat-soluble compound found principally in certain, It protects unsaturated fats in the body from oxidation by peroxides and other free radicals.It is available in plant oils and the leaves of green vegetables.

✅ Explanation: Milk is considered a poor source of iron. While it contains some iron, the amount is relatively low compared to other food sources like meat, poultry, and fortified cereals.Important Key Points  Bovine milk (human milk/ cow milk) has a higher concentration of calcium, which competes with iron and excessive amount of protein and minerals interferes in the absorption of iron. Human breast milk is a complex matrix with a general composition of 87% water, 3.8% fat, 1.0% protein, and 7% lactose. The fat and lactose, respectively, provide 50% and 40% of the total energy of the milk  As the other options are abundantly present in milk and milk is rich source of calcium, phosphorus, sodium, and potassium, protein and fat-rich., Milk has a significant amount of Vitamins like vitamin A and B, thiamine, riboflavin, and nicotinic acid., Milk is a poor source of vitamin C and Vitamin E and also contains vitamin B12. Additional Information Milk is a nutrient-rich liquid food. It is an emulsion of fat in water. It is a colloidal suspension of proteins. It is produced by the mammary gland of mammals. It is composed of:o Water = 87.5%.o Fat = 3.9%.o Protein = 3.4%.o Lactose & Minerals = 5.2%. It comprises the following components:o Protein, Calcium, Magnesium, Water, Fat, Phosphorus, Vitamin D, Potassium, Vitamin B12, Zinc & some amount of Carbohydrate.o Lactose is the main Carbohydrate.o Lactose is a disaccharide found only in milk and dairy products.o The fermentation of lactose produces lactic acid, which causes a sour taste. The molecular mass of lactose: C12H22O11. Milk contains a variety of proteins.o Casein protein is the main among them.o These protein form micelles which causes scattering of light ultimately causing milk to appear as white. Function:o To provide nutrient to the body for the growth of tissue, bones & muscles. Lactic acid is found in it. June 1: World Milk Day.

✅ Explanation: The coefficient of relationship is the proportion of genes shared between two individuals due to common ancestry. First cousins share one set of grandparents, and the calculation for their coefficient of relationship is as follows:Path of inheritance: The genetic connection passes from the individual to their parent, then to the common grandparent, and then back through the parent's sibling to the cousin.Coefficient for each link: Each parent-child link contributes a factor of 1/2.Number of links: There are 4 links in total (individual → parent → grandparent → uncle/aunt → cousin).Thus, the coefficient of relationship is:(1/2)4=1/16=0.0625However, this value represents the coefficient of inbreeding if first cousins were to reproduce. Since the relationship involves two pathways (one through each grandparent), the total coefficient of relationship is doubled:0.0625×2=0.125

✅ Explanation: The average sperm concentration in buffalo bull semen is typically around 750 million sperm cells per millilitre. However, this can vary slightly depending on the bull's age, breed, health, and management practices. Maintaining such high sperm concentrations ensures better chances of successful fertilization during artificial insemination or natural breeding.

✅ Explanation: While oxytocin is produced in the hypothalamus, it is stored and released from the posterior lobe of the pituitary gland. This hormone plays vital roles in childbirth, milk letdown, and social bonding.📌 Other Options Explanations:● Thyroid: Primarily responsible for hormone production related to metabolism.● Adrenal: Produces hormones involved in stress response, blood pressure regulation, and metabolism.● Anterior lobe of pituitary: Secretes various hormones, including growth hormone, prolactin, and thyroid-stimulating hormone.Key Points Exocrine glands: The glands which secrete substances on the epithelial surface through the ducts are called exocrine glands. Eg. sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, prostate, and mucous glands. Endocrine glands: The glands which secrete hormones and other substances directly into the bloodstream are called endocrine glands. Eg. Pituitary, Pineal, Thyroid, Thymus, Gonads, etc. The posterior part of the pituitary gland also called Neurohypophysis (pars nervosa) releases oxytocin. Oxytocin is synthesized by the hypothalamus and is transported axonally to the neurohypophysis. Oxytocin acts on the smooth muscles of our body and stimulates their contraction. In females, it stimulates a vigorous contraction of the uterus at the time of childbirth, and milk ejection from the mammary gland. For this reason, it is also called the birth hormone.​Additional Information  ​The pars distalis region of the pituitary, commonly called anterior pituitary, produces growth hormone (GH), prolactin (PRL), thyroid-stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), luteinizing hormone (LH), and follicle-stimulating hormone (FSH). Pineal gland: It is present on the dorsal side of the forebrain. It produces an enzyme called melatonin which is responsible for maintaining the diurnal rhythm (24-hour) of the body like the sleep-wake cycle, body temperature, etc. In addition, melatonin also influences metabolism, pigmentation, the menstrual cycle as well as our defense capability. The thyroid gland is composed of two lobes which are present on either side of the trachea. Both the lobes are interconnected with a thin flap of connective tissue called the isthmus. It produces the enzyme thyroxine required for iodine metabolism.

✅ Explanation: Silage is the term used for fodder that is stored in an airtight silo. This preservation process involves fermentation, which creates a nutrient-rich feed for livestock.📌 Other Options Explanations:● Roughage: A general term for fibrous feeds like hay and silage.Important Key Points  Silos and granaries are large-scale godowns for the storage of grains to protect them from insects, rats, and other pests. They are large tanks that serve the purpose of storehouses and are used on a large scale for the storage of grains. The word Silo is derived from the Greek word Siros which means pit for holding grain. The grains, fermented feed i.e silage, coal, cement, carbon black, woodchips, food products, and sawdust are stored mostly in bulk quantities in a silo. There are three types of silos that are mostly used today they are as follows:o Tower Siloso Bunker Siloso Bag Silos. A storage facility for grain or sometimes animal feed or a fertile grain-growing region is called the granary. A storehouse or a room in a barn for animal feed and threshold grain is called the granary. In order to keep the stored food away from rats, mice, and other animals, the granaries are often built above the ground.

✅ Explanation: In the production of ice cream, the total solids content includes all components other than water, such as milk fat, milk solids-not-fat, sugar, stabilizers, and emulsifiers. According to most food standards (including the guidelines from many dairy boards and regulatory bodies), the total solids content of ice cream should not be less than 46% to ensure proper texture, flavor, and quality.

✅ Explanation: Khoa, a concentrated milk product, is produced by evaporating water from milk. Since buffalo milk has a higher total solids content compared to cow's milk, it yields more khoa. Additional Information Yield of KhoaGenerally 4 kg of buffalo milk or 5 kg of cow milk yield one kg of khoa. The yield of khoa depends on the following factors:Type and quality of milkBuffalo milk gives more yield than cow milk because of its higher fat and solids. Adulterated milk and low solids milk give lower yields.Moisture content in khoaHigher the moisture content in khoa, higher the yield and vice – versa. The yield of dhap variety of khoa is more than Pindi variety of khoa because of higher moisture content.Losses during handlingHigher losses due to stickage of product and milk spillage losses during processing which will result in lower yields.

Explanation: In India, the majority of milk produced is utilized in its liquid form for direct consumption. This is due to the high demand for fresh milk for household consumption, tea and coffee preparation, and culinary uses. Milk in its liquid state is the most accessible and preferred form in both rural and urban areas of India. Accounts for the highest share (around 45-50% of total milk production).The distribution of milk utilization in India typically follows this pattern:Ghee making - Comes next, as ghee is a traditional and widely used dairy product in India.Khoa making - Used for making sweets, especially during festive seasons.Powder making - Primarily for industrial use, exports, and storage during surplus seasons.

Explanation: The normal acidity of fresh raw milk is measured in terms of lactic acid content, which typically ranges around 0.14% to 0.18%. In this context, 0.18% is considered the average normal acidity of fresh raw milk. Acidity in milk is important for its quality and can be affected by various factors such as storage conditions, contamination, or the milk's age.

Explanation: Toned milk is a type of milk that has been diluted with water and has the fat content reduced, typically to around 3% to 3.5%. This process was developed in India by Dr. K. S. Khurody in 1961 to make milk more affordable and accessible to the masses while maintaining nutritional quality. Dr. Khurody's invention helped in addressing the challenge of high-fat content in milk and provided a solution to cater to a larger population with varying dietary needs.📌 Other Options Explanations:● Option A: Dr. Kurien: Dr. Verghese Kurien is known as the father of the white revolution in India for his contributions to the dairy industry, particularly in establishing the Amul cooperative.● Option B: Mr. Dalaya: Mr. H. M. Dalaya is known for his work in developing baby food formulations and establishing the Kaira District Co-operative Milk Producers' Union (Amul).

Explanation: The principal protein in milk is casein. It makes up about 80% of the total protein content in cow's milk (and a similar proportion in other mammalian milk). Casein plays a crucial role in the formation of curds during cheese production, and it is known for its ability to form a gel or clot in the stomach, which aids in slow digestion and provides a sustained release of amino acids.📌 Other Options Explanations:● Option A: α-Lactalbumin: This is a whey protein found in milk and is involved in lactose synthesis.● Option B: β-Lactoglobulin: This is another major whey protein in milk and plays a role in milk allergy.● Option C: Albumin: Albumin is a protein found in blood plasma.

Explanation: The National Milk Grid is a network of milk processing and distribution centers across India. Milk from Rajasthan is primarily transported to Delhi to meet the high demand in the capital city.Key PointsIn Rajasthan, the livestock sector plays a major role in improving socio-economic status and fulfilling the nutritional needs of rural masses.The state is second highest in milk production in the country.Of the total milk produced, 53 per cent is buffalo milk, 36 per cent in cattle milk and 11 per cent is goat milk.Per capita availability of milk is highest in Jaisalmer district having 1,085 grams of milk per day per person.Approximately, 50 per cent of the milk produced is sold in the market and only 25 per cent is consumed at home as liquid milk. Remaining 25 per cent of the milk produced is converted into milk products.Highest livestock density is in Rajsamand and Dausa district having 292 livestock per square kilometre.

Explanation: Fat, particularly milk fat, is the most expensive ingredient in ice cream as it contributes to the creaminess, texture, and flavor of the product.📌 Other Options Explanations:● Option A: SNF (Solids-Not-Fat): SNF includes milk proteins, lactose, and minerals.● Option B: Stabilizer: Stabilizers are used in small amounts to prevent ice crystal formation and improve texture.● Option C: Emulsifier: Emulsifiers help to blend the fat and water in ice cream.

✅Explanation: After pasteurization, milk needs to be rapidly cooled to below 5°C to prevent the growth of any remaining bacteria and extend its shelf life.Additional Information  Pasteurization refers to the process of heating every particle of milk to at least 63°C for 30 min, or 72°C for 15 sec, in approved and properly operated equipment. After pasteurization, the milk is immediately cooled to 5°C or below.Methods of pasteurization:1. In bottle pasteurization: ​In this case bottles filled with raw milk and tightly sealed with special caps are held at 63 to 66°C for 30 min. Then the bottles passed through water space of decreasing temperature, which cool both the product and the bottle. In this case there is greater risk of bottle breakage also special types of water-tight caps required to be used. One of the advantages is that it prevents the possibility of post- pasteurization contamination.2. ​Low temperature long time (LTLT) method: ​Milk is heated to 63°C for 30 min and promptly cooled to 5°C or below and thus heating is done indirectly. The heat moves through a metal wall into the product for heating and out of the product for cooling.3. ​High temperature short time (HTST) pasteurization: ​Large volumes of milk are handled and it gives a continuous flow of milk which is heated to 72°C for 15 sec and promptly cooled to 5°C or below.4. ​Ultra high temperature (UHT) pasteurization: ​This method consists of temperature-time combinations of 135 to 150°C for no hold. The success of this method depends on immediate aseptic packaging.

Explanation: Buffalo milk is ideal for making paneer due to its higher fat content, which results in a softer, creamier, and more flavorful paneer compared to cow milk.Additional Information  Paneer is a heat-acid coagulated milk product obtained by coagulating standardized milk with the permitted acids at specified temperature. The resultant coagulum is filtered and pressed to get the sliceable curd mass. Paneer has a firm, close, cohesive and spongy body and smooth texture. It is mainly prepared from buffalo milk. It is reported that about 5% of the milk produced in India is converted into paneer and paneer production is growing annually at the rate of 13%.

Explanation: Ghee is clarified butter with almost all the moisture and milk solids removed, leaving behind pure milk fat.

Explanation: Chrymosin is the key enzyme used in cheese-making to coagulate milk and separate curds from whey.📌 Other Options Explanations:● Option A: Pepsin: Pepsin is an enzyme that can coagulate milk.● Option D: Trypsin: Trypsin is a digestive enzyme found in the small intestine.Important Key Points Renin:It is also known as Chymosin.The structure of Renin contains 340 amino acids.It helps in coagulating milk.At 370C, Renin works the best.Large amounts of this enzyme are secreted in the stomach of infant mammals.It is also present in the stomach of cud-chewing animals.Renin in the cheese industry:In cheese industry renin is added to milk, which then helps in the coagulation of milk.It converts caseinogen into casein.

✅ Explanation: HTST (High Temperature Short Time) pasteurization involves heating milk to 71.5°C for 15 seconds to kill harmful bacteria while preserving its nutritional quality and flavor.Additional Information Methods of pasteurization:1. In bottle pasteurization: ​In this case bottles filled with raw milk and tightly sealed with special caps are held at 63 to 66°C for 30 min. Then the bottles passed through water space of decreasing temperature, which cool both the product and the bottle. In this case there is greater risk of bottle breakage also special types of water-tight caps required to be used. One of the advantages is that it prevents the possibility of post- pasteurization contamination.2. ​Low temperature long time (LTLT) method: ​Milk is heated to 63°C for 30 min and promptly cooled to 5°C or below and thus heating is done indirectly. The heat moves through a metal wall into the product for heating and out of the product for cooling.3. ​High temperature short time (HTST) pasteurization: ​Large volumes of milk are handled and it gives a continuous flow of milk which is heated to 71.5°C for 15 sec and promptly cooled to 5°C or below.4. ​Ultra high temperature (UHT) pasteurization: ​This method consists of temperature-time combinations of 135 to 150°C for no hold. The success of this method depends on immediate aseptic packaging.

✅ Explanation: The MBRT (Methylene Blue Reduction Time) test is a simple and rapid method to assess the microbial quality of milk. The faster the methylene blue dye is decolorized, the higher the bacterial count in the milk.📌 Other Options Explanations:● Option B: Phosphatase test: This test is used to determine the effectiveness of pasteurization.● Option C: Organoleptic test: This involves evaluating the milk's sensory properties (appearance, taste, smell).● Option D: Acidity test: This test measures the titratable acidity of milk and can indicate spoilage.

✅ Explanation: Battery and deep-litter systems are common housing methods in poultry farming. Battery cages provide individual housing for birds, while deep-litter systems involve a thick layer of bedding material on the floor.Additional Information Advantages:1. It is an economical2. Hygienic, comfortable and safe to birds3. Built up litter supplies vitamin B12 and Riboflavin to the birds4. Controls diseases and vices5. It increases the efficiency of production6. Materials such as paddy husks saw dust, dried leaf, chopped straw and groundnut kernels depending upon the availability can be used as litter materials.Points to be considered while adopting deep litter system1. The deep litter system should always keep dry.2. Only right numbers of birds should be housed3. The house should be well ventilated4. The litter should be stirred at least once in a week-wet litter if any should be replaced immediately with new dry litter and birds must be fed a balanced ratio.5. The time starting deep litter system should be in the dry period of the year as it allows sufficient time (At least two months) for bacterial action.6. Placing of water should be given due attention to keep litter dry.

✅ Explanation: Goats are often referred to as the "mobile bank" for farmers due to their multiple uses. They provide milk, meat, fiber (hair), and manure, and require relatively low investment and maintenance compared to other livestock.Additional Information  The goat an important economic livestock species contributes greatly to the agrarian Indian economy.  They play and important role in the livelihood of a large percentage of small and marginal farmers and land less labourers, hence also known known as poor man's mobile bank Goat are mostly reared for meat and milk.

✅ Explanation: Angora rabbits are specifically bred for their long, soft wool, which is highly valued for its warmth and luxurious feel. Key Points The Angora rabbit is bred for the long fibres of its coat, known as Angora wool, which are gathered by shearing, combing, or plucking. ​o Scientific name- Oryctolagus cuniculuso Rabbits do not possess the same allergy-causing qualities as many other animals, their wool is an important alternative.o The Angora rabbit is one of the oldest types of domestic rabbit.

✅ Explanation: White Leghorns are a popular breed known for their high egg-laying capacity and efficiency in converting feed into eggs.📌 Other Options Explanations:● Option D: Karaknath: This is an Indian breed known for its black meat and unique flavor.Important Key Points  Poultry farming is undertaken to raise domestic fowl for egg production and chicken meat. Therefore, improved poultry breeds are developed and farmed to produce layers for eggs and broilers for meat. There are two varieties of poultry:1. The indigenous or Indian poultry variety includes - Aseel, Chittagong, Kadaknath & Busra2. Foreign or Exotic poultry variety includes - Leghorn, Red Cornish, Minorca etc.Leghorn: It belongs to the Mediterranean Class of Poultry These are the most popular breed for poultry farming because they are excellent layers.

✅ Explanation: The abomasum is the true stomach of ruminant animals. It functions similarly to the stomach of non-ruminant animals, secreting digestive enzymes and hydrochloric acid to break down food.📌 Other Options Explanations:● Option A: Reticulum: This is the second compartment of the ruminant stomach, responsible for sorting food particles and regurgitation for further chewing (cud).● Option B: Rumen: The rumen is the largest compartment, acting as a fermentation vat where microbes break down plant fibers.● Option C: Omasum: The omasum absorbs water and nutrients from the partially digested food.Additional Information  The stomach of ruminants has 4 chambers. The first chamber is very large and it is called as rumen. The second chamber is the reticulum (honeycomb). The third is the omasum (book). Fourth is the abomasum (the true stomach).

✅ Explanation: Steaming up refers to the practice of gradually increasing the energy and nutrient content of a dairy cow's diet in the weeks leading up to calving. This helps to prepare her body for lactation and ensure a smooth transition into milk production.

✅ Explanation: Dystocia is the medical term for abnormal or difficult labor and delivery in animals.📌 Other Options Explanations:● Option A: Parity: Parity refers to the number of times a female has given birth.● Option C: Parturition: Parturition is the process of giving birth.● Option D: Gestation: Gestation is the period of pregnancy.Additional Information  Labor -> The process of delivering a baby and the placenta, membranes and umbilical cord from the uterus. Dystocia is an abnormal labor and responsible for more cesarean deliveries.Explanation: Labor dystocia -> Abnormally slow and protracted labor. It can be diagnosed in the first stage or second stage. Causes:o Fetal malpositiono Inadequate contractionso Poor maternal effortso True cephalopelvic disproportion. Symptoms:o Depressiono Restlessnesso Abnormal fetal position. Management:o Oxytocino Cesarean section

Explanation: Vitamin D is essential for calcium absorption and bone health. A deficiency in vitamin D can lead to rickets in children, a condition characterized by soft, weak bones that can cause skeletal deformities.📌 Other Options Explanations:● Option A: Vitamin E: Vitamin E is an antioxidant that protects cells from damage.● Option B: Vitamin A: Vitamin A is important for vision, immune function, and cell growth.● Option D: Vitamin B complex: B vitamins are a group of nutrients that play various roles in the body, including energy production and cell metabolism.Additional Information  Vitamin A: o This vitamin is vital for growth and development.o It basically helps in immune function, vitamin a is also an antioxidant.o It is an essential nutrient for healthy vision, skeletal tissue, and teeth. o It is basically found in carrots, eggs, butter, milk, and cheese. Vitamin B:o Vitamin B is classified into 12 categories.o The important are vitamin B1(thiamine) if there is any deficiency then it causes beriberi and then vitamin B12, cobalamin it causes pernicious anaemia and vitamin B2, rIboflavin it deficiency causes ariboflavinosis.o Vitamin B is abundantly found in meats. Vitamin C:o It is an antioxidant.o It helps in immune function.o The deficiency of vitamin C causes scurvy.o Vitamin C is richly found in green leafy vegetables like broccoli, orange, lemon, papaya, strawberries, etc. Vitamin D:o Vitamin D is essential for bones.o Vitamin D deficiency causes rickets.

Explanation: Grading up is a breeding strategy where a non-descript or lower-quality animal (like a non-descript cow) is mated with a purebred animal (like a Jersey bull) over multiple generations. The goal is to improve the genetic makeup and productivity of the offspring, eventually leading to animals with a higher proportion of the desired breed's characteristics.📌 Other Options Explanations:● Option A: Out crossing: Outcrossing involves mating unrelated animals within the same breed to increase genetic diversity.● Option C: Cross breeding: Crossbreeding involves mating animals of different breeds to combine desirable traits.● Option D: Back crossing: Backcrossing is a breeding technique where a hybrid animal is mated back to one of its parent breeds.

✅ Explanation: The Karan Fries breed is a crossbreed developed in India by crossing indigenous Tharparkar cows with exotic Holstein Friesian bulls. This crossbreeding aims to combine the heat tolerance and disease resistance of Tharparkar with the high milk production of Holstein Friesian.Additional Information  Karan fries breed has been evolved at NDRI, Karnal (Haryana). It is a cross between Tharparkar × Holstein Friesian. Average milk production is 3700 kg with 3.8 - 4% fat. The average age at first calving is 30 - 32 months.

✅ Explanation: Goiter is an enlargement of the thyroid gland, primarily caused by iodine deficiency. Iodine is essential for the production of thyroid hormones, which regulate metabolism and growth.Additional Information  Goitre is the abnormal enlargement of thyroid gland.It can also be caused due to over- or underproduction of thyroid hormones or to nodules in the gland itself. Deficiency of iron causes Anaemia. It is the decrease in the number of red blood cells. Deficiency of sodium causes Hyponatremia. It can happen from excess fluid in the body relative to a normal amount of sodium. A loss of sodium and body fluid caused by chronic conditions like kidney or congestive heart failure can also cause it. Deficiency of calcium means Hypocalcemia. It occurs when calcium levels in the blood are low. If deficiency continues to exist for a long time, it can lead to dental changes, cataracts, alterations in the brain, and osteoporosis.

✅ Explanation: Sirohi is a breed of goat originating from the Sirohi district of Rajasthan, India. It is known for its milk and meat production.Important Key Points  Sirohi is an Indian breed of Goat. It is a domesticated breed of goat. It takes the name from its origin that is the Sirohi District of Rajasthan. Sirohi goat characteristics are buck and doe have small horns and flat dropping ears (much like a leaf).Additional Information Goat: Scientific Name: Capra aegagrus hircus Family: Bovidae Important breed: Sirohi, bethal, Marwari, etc

✅ Explanation: Dehorning is ideally performed between 7-15 days of age when the horn buds are still small and not yet attached to the skull. This minimizes pain and complications for the calf.Additional Information Dehorning is removal of horn from grown animals.Dehorning paste typically contains two caustic substances: calcium hydroxide and sodium hydroxide. When applied to the horn bud, the paste causes a chemical burn that destroys horn-producing cellsHot iron:This method is commonly used to dehorn older animals (4-5 months old).It is quick and bloodless.

✅ Explanation: Layer ration, the feed provided to egg-laying hens, typically contains around 16% protein to support egg production and maintain the hen's health.

✅ Explanation: Mastitis is primarily caused by bacterial infection of the mammary gland (udder) in dairy animals. It leads to inflammation and reduced milk quality and yield.Important Key Points  This test is also known as the throat Culture Rapid Strep Test, Rapid Antigen Detection Test (RADT) Streptococcal Screen. This test is done to determine if sore throat is strep throat, an infection caused by group A streptococcus (GAS) bacteria. Mastitis, or inflammation of the mammary gland, is the most common and the most expensive disease of dairy cattle throughout most of the world. Mastitis treatment includes the following drugs - acriflavine, gramicidin, and tyrothricin. It is a bacterial disease.Additional Information A Widal Test is done to identify Typhoid fever. Tetrazolium Test is done to determine seed viability. Mastitis disease can occur in all Pet animals.

✅ Explanation: Nagori is a well-known draft breed of cattle native to Rajasthan, India. They are prized for their strength, endurance, and ability to work in harsh conditions, making them ideal for agricultural tasks like plowing fields and hauling carts.📌 Other Options Explanations:● Option A: Gir: Gir is a dairy breed known for milk production.● Option B: Tharparkar: Tharparkar is a dual-purpose breed used for both milk and draught.● Option D: Malvi: Malvi is another dual-purpose breed used for milk and draught.Key Points Tharparkar is the breed of Cow.o Original Place of Origin – Malani village, near Gudha (Barmer).o District- Jaisalmer, mainly in Barmer and in some parts of Jodhpur and Bikaner.o Dwikaji breed- Cows give good milk and bulls do good work.o The tail is the longest, there is less hair at the end. Famous for high milk production.Additional Information ​Major breeds of cow in Rajasthan: Tharparkar – Western, Rathi, Haryanvi, Nagori, Mewati (Kothi), Kankrej, Ajmera, Gir, Renda, Malvi, Sanchauri. Buffalo: Most of the buffaloes in Rajasthan are found in Alwar. Jaipur is in second place. The Murrah breed of buffalo of Rajasthan is famous all over the country. Sheep: Nali, Magra, Poogal, Chokhla, Jaisalmeri, Marwari, Sonadi, Desi or Kheri, Malpuri and Bagri Bharwati. Goat: Alwari, Parbatsari, Marwari (Lohi), Sirohi, Jamnapari, Barbari, Shekhawati.

✅ Explanation: Tuberculosis, a bacterial infection, can be transmitted through the consumption of raw, unpasteurized milk from infected animals.📌 Other Options Explanations:● Option A: Mastitis: Mastitis is an inflammation of the mammary gland, usually caused by bacteria.● Option B: Pneumonia: Pneumonia is a respiratory infection.● Option D: Rickets: Rickets is a bone disease caused by vitamin D deficiency.Key Points Tuberculosis is a disease usually spread through milk. Tuberculosis (TB) is a disease caused by bacteria called Mycobacterium tuberculosis, These bacteria usually attack the lungs, but they can also damage other parts of the body. Excess bilirubin (hyperbilirubinemia) is the main cause of jaundice. Bilirubin, which is responsible for the yellow colour of jaundice, is a normal part of the pigment released from the breakdown of "used" red blood cells.

✅ Explanation: Double toned milk has the lowest fat content (1.5%) among the options, making it the cheapest to produce. The cost of milk is often influenced by its fat content, with higher fat milk being more expensive.📌 Other Options Explanations:● Option A: Recombined milk: This milk is made by mixing milk powder, butterfat, and water, and its cost can vary.● Option B: Standardized pasteurized milk: This is milk with a regulated fat and SNF content.● Option D: Toned milk: Toned milk has a higher fat content (3%) than double toned milk.Additional Information ● Double toned milk: As per the rules double toned milk should contain a minimum of 1.5% of Fat & 8.7-9% SNF.● Cow whole milk contains Fat not less than 3.5% and SNF not less than 8.5%.● Buffalo whole milk contains Fat not less than 6% and SNF not less than 9%.● Standardized milk contains a minimum of 4.5% Fat and 8.5% SNF.● Toned milk should contain a minimum of 3% Fat and 8.5% SNF.● Recombined milk contains a minimum of 3% Fat and 8.5% SNF.● Skimmed milk contained around 0.1-0.5% Fat.● Full skimmed milk contain a minimum of 6% Fat and a minimum of 9% SNF.● Goat and Sheep milk contain not less than 3-3.5% Fat and 8.5-9% SNF.● Mixed milk contains a minimum of 4.5% fat and 8.5% SNF.● Butter should contain not less than 76% Fat.

✅ Explanation: Alkaline phosphatase is an enzyme naturally present in milk. It gets deactivated during pasteurization. Therefore, the presence of alkaline phosphatase activity in milk indicates incomplete pasteurization or post-pasteurization contamination.📌 Other Options Explanations:● Option A: Turbidity test: This test measures the cloudiness of a liquid, which can be caused by various factors.● Option C: Acid phosphatase test: While acid phosphatase is also an enzyme in milk.Key PointsAlkaline phosphatase (ALP) in milk Pasteurisation is an essential process in the production of milk which is safe and free from pathogens. Alkaline Phosphatase is an enzyme which is naturally present in milk but is destroyed at a temperature just near the pasteurization temperature. The alkaline Phosphatase test is used to indicate whether milk has been adequately pasteurised or whether it has been contaminated with raw milk after pasteurisation. This test is based on the principle that the alkaline phosphatase enzyme in raw milk liberates phenol from a disodium para-nitro phenyl phosphate and forms a yellow-coloured complex at alkaline pH (Scharer, 1943). The intensity of the yellow colour produced is proportional to the activity of the enzyme. The colour intensity is measured by direct comparison with standard colour discs in a Lovibond comparator. The test is not applicable to sour milk and milk preserved with chemical preservative

✅ Explanation: Polyethylene is a common plastic used for milk packaging due to its flexibility, moisture resistance, and ability to be sealed.

✅ Explanation: The Jamunapari breed of goat is known for its distinctive long, pendulous ears and a prominent Roman nose (convex profile).📌 Other Options Explanations:● Option A: Sirohi: Sirohi goats have moderately long ears and a straight or slightly convex profile.● Option B: Barbari: Barbari goats have small, pointed ears and a straight profile.● Option C: Beetal: Beetal goats have medium-sized ears and a straight or slightly convex profile.Additional Information Jamunapari breeds are found mainly in the state of Uttar Pradesh.Its coat colour is white with tan or black markings at neck and earsThey are beard in both sexes; havetuft of long hairs in the buttocks.It is largest and most elegant of the long-legged goats of India.It has pronounced Roman nose having a tuft of hair which results in parrot mouth appearance.Their horns are short and flat and horizontally twisting backward.An adult male ranges from 90 to 100 cms in height, whereas a female goat ranges from 70 to 80 cms in height.It is, tall and leggy with convex face line and large folded pendulous ears.Generally found in white colors.Their ears are large and drooped downwards.An adult female weighs between 45kgs to 60kgs, whereas an adult male ranges between 65kgs to 80kgs.Average birth weight is up to 4 kg.Average age at first kidding is 20-25 months.They have large udder and big teats and average yield is 280 kg / 274 days.Have the ability to yield 2 to 2.5kgs of milk per day.The fat content of the milk ranges between 3 to 3.5%.They thrive best under range conditions with plenty of shrubs for browsing.

✅ Explanation: The optimal oxygen percentage for incubating eggs is approximately 21%, which is the same as the oxygen concentration in normal atmospheric air.

✅ Explanation: Oxytocin is the hormone responsible for milk let down, also known as milk ejection. It stimulates the contraction of the myoepithelial cells surrounding the alveoli in the mammary gland, causing milk to be released into the ducts.📌 Other Options Explanations:● Option A: Adrenaline (Epinephrine): This is a stress hormone that can inhibit milk let down.● Option C: Estrogen: Estrogen is involved in mammary gland development.● Option D: Prolactin: Prolactin is responsible for milk production. Additional Information  Milk letdown means the ejection of a mother's milk from the alveoli of the breast into the mammary ducts and to the nipple. When the nipple is sucked the Prolactin acts on the milk-making tissues. The Oxytocin hormone causes the breast to push out or 'let down' the milk.Additional InformationProlactin Prolactin is a hormone produced by the pituitary gland which sits at the bottom of the brain. Prolactin causes breasts to grow and develop and causes milk to be made after a baby is born.Oestrogen Oestrogen is the primary female sex hormone. It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics.Progesterone Progesterone prepares the endometrium for the potential of pregnancy after ovulation. It triggers the lining to thicken to accept a fertilized egg

✅ Explanation: The Central Sheep and Wool Research Institute (CSWRI) is a premier research institute dedicated to sheep and wool production and is located in Avikanagar, Rajasthan, India. Important Points It was established in 1962 at Malpura, Rajasthan and now the campus is popular by the name Avikanagar. Central sheep and wool research institute is a premier institute of ICAR engaged in research, training, and extension activities on sheep and rabbit.Important Achievements of Institute are:1. The institute has evolved new strain Avikalin by crossing Rambouillet with Malpura for carpet wool production2. The institute has evolved new strain Avivastra by crossing Rambouillet with Chokla3. The institute has evolved new strain Avimaans by crossing Dorset / Suffolk rams with Malpura / Sonadi ewes4. The institute has evolved a new strain Bharat Merino by crossing Soviet Merino rams with Chokla / Nali ewes for fine wool production.Additional Information CattleInstitute: Central Institute for Research on CattleLocation: Meerut, Uttar Pradesh BuffaloInstitute: Central Institute for Research on BuffaloesLocation: Hisar, Haryana GoatInstitute: Central Institute for Research on GoatsLocation: Makhdoom, Mathura, Uttar Pradesh PoultryInstitute: Central Avian Research InstituteLocation: Bareilly, Uttar Pradesh

✅ Explanation: A general guideline for feeding calves is to provide 10% of their body weight in milk per day. For a 26 kg calf, this translates to 2.6 kg of milk.

✅ Explanation: Maize (corn) is an ideal crop for silage making due to its high energy content, good moisture content, and fermentability. The high sugar content in maize stalks allows for efficient lactic acid fermentation, preserving the nutritional value of the silage.

✅ Explanation: Close breeding, also known as inbreeding, involves mating closely related individuals, such as a sire (father) and daughter. This practice aims to concentrate desirable traits but can also lead to increased homozygosity and the expression of deleterious recessive genes, which can negatively impact the health and viability of the offspring.📌 Other Options Explanations:● Option A: Cross breeding: Crossbreeding involves mating animals of different breeds to combine desirable traits and promote hybrid vigor.● Option B: Line breeding: Line breeding is a milder form of inbreeding where animals are mated based on a common ancestor.● Option C: Out breeding: Outbreeding is the mating of unrelated animals within the same breed or between different breeds to increase genetic diversity and reduce the risk of inbreeding depression.Additional Information  Line breeding is an inbreeding program whereby an individual is mated to its descendants. The mating of animals of wider degrees of a relationship than those selected for close breeding is called line breeding. It promotes uniformity in the characters.  Line breeding is the breeding program that is needed if the farmer wants to keep the relationship of the next generation with a particular ancestor at a high level. It can be used when the breed is in its infancy to develop the breed or to can also be used in an established breed or strain when an outstanding animal is discovered.

Explanation: The yellow color of cow milk is primarily due to the presence of beta-carotene, a pigment found in green plants and algae. Cows consume these plants, and the beta-carotene is converted to vitamin A in their bodies. Some of the beta-carotene is transferred to the milk, giving it a yellow tint. The intensity of the yellow color can vary depending on the cow's diet and breed.📌 Other Options Explanations:● Option A: Lactose: Lactose is the primary sugar found in milk and contributes to its sweetness.● Option B: Glucose: Glucose is a simple sugar present in small amounts in milk.● Option D: Protein: Proteins in milk, such as casein and whey, are responsible for its white color.Key Points The amount of yellow colour in cow's milk depends upon the amount of green feed eaten by cows or given to cows. The colour of cow's milk is slightly yellow due to the presence of carotene. Carotene is a fat-soluble compound and is responsible for not only the yellow colour of milk but also cream, butter, ghee and other fat-rich dairy products. Besides contributing to the colour of milk, carotene acts as a precursor of vitamin A and also as an antioxidant. Plants do not have vitamin A but have the precursor of vitamin A, the carotenoids. These are converted to vitamin A when herbivores ingest green plants. Carotenoids are the orange and yellow coloured pigments of fruits, flowers, and some vegetables. Green leafy vegetables also possess carotenoids but chlorophyll masks them.

Explanation: The primary bacterium responsible for the souring of milk is Streptococcus lactis. It ferments lactose (milk sugar) into lactic acid. The increased acidity causes the milk proteins to coagulate, leading to curdling and a sour taste.

Explanation: The average gestation period (the duration of pregnancy) for goats is approximately 150 days, although it can vary slightly depending on the breed and individual animal.Important Key Points  Gestation (pregnancy) can be defined as the time duration between conception and birth (delivery) of the foetus. It includes the development of the embryo in the uterus hence, the correct option will be embryonic development. The duration of the gestation period is variable in different species. The average gestation period of different species - Additional InformationThe sequence of Reproductive events: 1. Gametogenesis - Formation of gametes i.e., sperms in males and ovum in females.2. Insemination - Transfer of sperms into the female genital tract.3. Fertilisation - The fusion of male and female gametes leading to the formation of zygote.4. Implantation - Formation and development of blastocyst and its attachment to the uterine wall.5. Gestation - Embryonic development.6. Parturition - Delivery of the baby.

Explanation: India is the world's largest milk producer, consistently surpassing other countries in total milk production. The country has a large bovine population and a well-established dairy industry, contributing to its leading position in global milk production.Key Points India is the world’s largest milk producer. India produces 22 percent of global production. The other countries followed in production are the United States of America, China, Pakistan and Brazil.Additional Information Since the 1970s, most of the expansion in milk production has been in South Asia, which is the main driver of milk production growth in the developing world. Milk production in Africa is growing more slowly than in other developing regions, because of poverty and in some countries having adverse climatic conditions. The countries with the highest milk surpluses are New Zealand, the United States of America, Germany, France, Australia and Ireland. The countries with the highest milk deficits are China, Italy, the Russian Federation, Mexico, Algeria and Indonesia.

✅ Explanation: The Jamunapari breed of goat is known for its distinctive long, pendulous ears and a prominent Roman nose (convex profile).

✅ Explanation: Rinderpest, also known as cattle plague, is a highly contagious viral disease that affects cattle and other ruminants.📌 Other Options Explanations:● Option B: Coccidiosis: Coccidiosis is a parasitic disease caused by protozoa.● Option C: Haemorrhagic septicaemia: Haemorrhagic septicaemia is a bacterial disease caused by Pasteurella multocida.● Option D: Black quarter: Black quarter is a bacterial disease caused by Clostridium chauvoei.

✅ Explanation: Purgative medicines are specifically designed to induce bowel movements and relieve constipation. They work by stimulating the intestines, increasing the bulk of stool, or softening the stool to facilitate easier passage.📌 Other Options Explanations:● Option A: Astringent: Astringent medicines are used to constrict tissues and reduce secretions.● Option B: Laxative: Laxatives are milder than purgatives and are used to promote bowel movements and relieve mild constipation.● Option D: Carminative: Carminative medicines are used to relieve gas and bloating.

✅ Explanation: Pork is the culinary name for the meat of pigs.📌 Other Options Explanations:● Option A: Beef: Beef is the culinary name for meat from cattle (cows or bulls).● Option B: Mutton: Mutton is the culinary name for meat from adult sheep.● Option C: Red meat: Red meat is a general term for meat from mammals, including beef, pork, and mutton.

✅ Explanation: Buffaloes contribute significantly to milk production in India, accounting for approximately 52% of the total milk produced.

✅ Explanation: Tattooing is considered one of the best and most effective methods for marking calves. It involves using ink to mark the skin, typically on the inside of the ear, and is permanent. Tattoos are not easily removed and are a reliable means of identification over time. This method is often used because it causes minimal pain and has a low risk of infection when done correctly.📌 Other Options Explanations: Option B: TaggingTagging involves placing a tag in the ear of the calf, usually with an ID number. While it's a popular method due to its ease and visibility, it can get lost, torn, or damaged. Option C: BrandingBranding involves burning a mark into the skin of the calf, which is permanent but can cause significant pain and stress. It's more commonly used in larger livestock operations. Option D: NotchingNotching involves cutting small notches in the ears of the animal to denote specific identifiers.

✅ Explanation: The average duration of the estrus cycle in cows is 21 days, although it can vary slightly between individuals and breeds. This cycle includes the period of sexual receptivity and ovulation.Additional Information  Cyclical changes are observed in females of placental mammals during activities of ovaries and accessory ducts as well as hormones during the reproductive phase.  such cyclical changes during reproduction are called the oestrus cycle In non-primate mammals like cows, sheep, rats, deers, dogs, tiger, etc.  In primates (monkeys, apes, and humans) it is called the menstrual cycle.  Many mammals, especially those living in natural, wild conditions exhibit such cycles only during favorable seasons in their reproductive. seasonal breeders.

✅ Explanation: The standard lactational length in cows is typically 305 days. This is the period during which a cow produces milk after calving. While there can be slight variations depending on breed and individual factors, 305 days is the widely accepted standard used for measuring milk production and managing dairy operations.

✅ Explanation: Foot and Mouth Disease (FMD) is a highly contagious viral disease that affects cloven-hoofed animals, including cows. It causes painful blisters in the mouth and feet, leading to lameness, fever, and reduced productivity. Annual vaccination is crucial to prevent outbreaks and protect the health of livestock.📌 Other Options Explanations:● Option A: Bloat: Bloat is a digestive disorder caused by gas accumulation in the rumen. ● Option B: Mastitis: Mastitis is an inflammation of the mammary gland, usually caused by bacteria. ● Option C: Milk fever: Milk fever is a metabolic disorder caused by low calcium levels around calving. Key Points About Foot-and-mouth disease:o It is an infectious and sometimes fatal viral disease.o Affects cloven-hoofed animals, including cattle,sheep, pigs, etc.o Symptoms: The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture and cause lameness.o The virus responsible for the disease is a picornavirus, the prototypic member of the genus Aphthovirus.Additional Information​​ Spread of the disease and Concerns associated:o Foot-and-mouth disease (FMD) has severe implications for animal farming, since it is highly infectious and can be spread by infected animals through aerosols, through contact with contaminated farming equipment, vehicles, clothing, or feed, and by domestic and wild predators.

✅ Explanation: The placenta (also known as the afterbirth) is usually expelled within 6 hours after parturition (giving birth) in cows. While some cows may expel it earlier, and others may take slightly longer, the majority will do so within this timeframe.

✅ Explanation: Berseem (Trifolium alexandrinum) is a leguminous forage crop widely cultivated in India. Legumes are plants that have a symbiotic relationship with nitrogen-fixing bacteria in their root nodules, enriching the soil with nitrogen. Berseem is a valuable source of protein for livestock and is commonly used as green fodder or hay.

✅ Explanation: Chicks require a high protein diet for rapid growth and development. The average protein requirement for chick ration is around 22%, although it can vary slightly depending on the age and breed of the chick.

✅ Explanation: Ranikhet disease, also known as Newcastle disease, is a highly contagious viral disease that affects poultry. Vaccination is the most effective way to prevent it. The initial vaccination is usually administered when the chicks are about 1 week old, followed by booster doses at later stages.Additional Information  Ranikhet disease vaccine ‘F’ strain (RDF) is a live modified lentogenic virus vaccine of chicken embryo origin in lyophilized form. It is used in young chicks up to 1 week of age, as a primary vaccination for protection against New Castle Disease in poultry. Immunity lasts for 8 - 10 weeks and so chicks should be re-vaccinated with Ranikhet disease ‘K’strain vaccine within 6 - 8 weeks after the primary vaccination with ‘F’ strain.

✅ Explanation: Jersey cows are known for their milk with the highest butterfat content among dairy breeds, averaging around 5%. This high butterfat makes Jersey milk ideal for cheese and butter production.📌 Other Options Explanations:● Option A: Brown Swiss: Brown Swiss cows have a milk fat content of around 4%.● Option B: Holstein Friesian: Holstein Friesian cows are known for high milk yield but have a lower milk fat percentage of around 3.5%.● Option D: Red Dane: Red Dane cows have a milk fat percentage of around 4%.Additional InformationThe Holstein cow gives the maximum yield of milk.Holsteins are a large, black-and-white breed of dairy cattle that are known for their high milk production.They are the most popular dairy breed in the world, and they account for about 85% of the world's milk production.Holsteins can produce an average of 28 liters of milk per day, and some cows can produce up to 100 liters per day.They are also known for their high butterfat content, which is about 4%.Jersey.Jerseys are a small, fawn-colored breed of dairy cattle that are known for their high milk fat content.They can produce an average of 20 liters of milk per day, and some cows can produce up to 60 liters per day.Sahiwal.Sahiwals are a large, dun-colored breed of dairy cattle that are native to India.They are known for their high milk production and their resistance to heat and disease.They can produce an average of 15 liters of milk per day, and some cows can produce up to 40 liters per day.Red Sindhi.Red Sindhis are a large, red-colored breed of dairy cattle that are native to Pakistan.They are known for their high milk production and their resistance to heat and disease.They can produce an average of 15 liters of milk per day, and some cows can produce up to 40 liters per day.

✅ Explanation: Mid-estrus is the optimal time to inseminate a cow because it is when ovulation (release of the egg) is most likely to occur. This maximizes the chances of successful fertilization.

✅ Explanation: Polyethylene is a common plastic used for milk packaging due to its flexibility, moisture resistance, and ability to be sealed. It is also lightweight and cost-effective.

✅ Explanation: All the mentioned options (LTLT, HTST, and UHT) are valid methods of pasteurization, each with varying temperature and time combinations. The choice of method depends on factors like desired shelf life, product type, and available equipment.