Animal Husbandry - Study Mode
[#471] Which of the following vitamins remains most resistant on heat treatment of milk
Correct Answer
(A) Vitamin A
Explanation
Solution: Vitamin A remains most resistant to heat treatment of milk. Milk is a natural source of calcium, vitamin B12, riboflavin (vitamin B2), phosphorus and potassium. It also contains smaller amounts of other nutrients including vitamin A, niacin, folate, vitamin B6, vitamin D, magnesium, selenium and zinc. Vitamin B2 and the fat soluble vitamins A, D, E and K are very heat stable and, therefore, are not affected by heat treatment and pasteurization.
[#472] The oestrus cycle of sheep is
Correct Answer
(C) 16 days
Explanation
Solution: The oestrus cycle of sheep is 16 days. Sheep oestrus cycles occur seasonally, and the duration of one complete ovarian cycle is 16 - 17 days. Average duration of oestrus is 24 to 36 hours, with ovulation occurring toward the end of oestrus or approximately 24 hours after the onset of oestrus. The length of 1,038 estrous cycles for 299 different ewes, 90% of the cycles were 14 - 19 days long, with an average of about 17 days. The start of the estrous cycle is considered to be when ovulation of an egg occurs from the ovary.
[#473] Cattle plague another name for
Correct Answer
(B) Rinderpest
Explanation
Solution: Cattle plague is another name for Rinderpest. Rinderpest (also cattle plague or steppe murrain) was an infectious viral disease of cattle, domestic buffalo, and many other species. Infected animals suffered from symptoms such as fever, wounds in the mouth, diarrhea, discharge from the nose and eyes, and eventually death. Rinderpest was mainly transmitted by direct contact and by drinking contaminated water, although it could also be transmitted by air.
[#474] The viral agent produces diphagic fever, respiratory distress, nervous symptoms and hard pad disease in dog is
Correct Answer
(A) Canine distemper virus
Explanation
Solution: The viral agent that produces diphagic fever, respiratory distress, nervous symptoms and hard pad disease in dogs is Canine distemper virus. Canine distemper virus (CDV) (sometimes termed “footpad disease”) is a viral disease that affects a wide variety of mammal families, including domestic and wild species of dogs. The above signs, especially fever, respiratory signs, neurological signs, and thickened footpads, occurring in unvaccinated dogs strongly indicate CDV. The time between infection and disease is 14 to 18 days, although a fever can appear from 3 to 6 days after infection.
[#475] The animal gets swelling on hind quarters, shoulders arid neck, limps and on pressing the affected parts, makes crepitating sound in the disease
Correct Answer
(A) Black quarter
Explanation
Solution: The animal gets swelling on the hind quarters, shoulders arid neck, limp and on pressing the affected parts, making crepitating sound in the disease named Black quarter. Blackleg, black quarter, quarter evil, or quarter ill is an infectious bacterial disease most commonly caused by Clostridium chauvoei, a Gram-positive bacterial species. It is an acute, highly fatal disease of cattle and sheep. In cattle, characteristic lesions of emphysematous swelling of the musculature often develop without a history of wounds. When infection begins, the animal may develop a fever, and the affected limb can feel hot to the touch. The limb usually swells significantly, and the animal can develop lameness on the affected leg.