Animal Husbandry - Study Mode

[#331] The heat period of cow is
Correct Answer

(B) 18 - 24 h

Explanation

Solution: The heat period for cows is 18 - 24 h. The time when a cow is on heat is defined as the period during which a cow will stand to be ridden by her herd mates or a bull. It occurs every 18 - 24 days, averaging 21 days in non-pregnant cows and lasts on average 14 - 15 hours. The cattle come in the heat after every 21 days of the estrous cycle, but it may occur anywhere between 18 to 24 days. The standing heat lasts for a duration ranging from 6 - 30 hours, with an average duration of 15 - 18 hours.

[#332] In left side heart failure, the heart failure cells are seen in
Correct Answer

(A) Lungs

Explanation

Solution: In the left side of heart failure, the heart failure cells are seen in Lungs. In left heart failure, the left ventricle cannot keep pace with the incoming blood from the pulmonary veins. Heart failure cells are siderophages generated in the alveoli of the lungs of people with left heart failure or chronic pulmonary edema when high pulmonary blood pressure causes red blood cells to pass through the vascular wall.

[#333] Which of the following is not a breed of poultry bird?
Correct Answer

(C) Murrah

Explanation

Solution: Out of the following options, Murrah is not a breed of poultry bird. Australorp, Carnish and white leghorn are breeds of poultry breeds. The Murrah buffalo is a breed of water buffalo (Bubalus bubalis) mainly kept for milk production. It originates in Haryana and Punjab India. Bulls weigh around 550 kg (1,210 lb) and cows around 450 kg (990 lb). Average milk production is 2,200 L in a lactation period of 310 days.

[#334] The primary aim of animal breeding is to breed such animals which are able to produce
Correct Answer

(D) Both A and B

Explanation

Solution: The primary aim of animal breeding is to breed such animals which can produce Qualitative increase in the product and Quantitative increase in the product. Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value of livestock. The scientific theory of animal breeding incorporates population genetics, quantitative genetics, statistics, and recently molecular genetics and is based on the pioneering work of Sewall Wright, Jay Lush and Charles Henderson.

[#335] Biological vector of bluetongue virus is
Correct Answer

(B) Culicoides

Explanation

Solution: Biological vector of bluetongue virus is Culicoides. Culicoides Latreille is biological vector of bluetongue virus (BTV), a member of family Reoviridae, genus Orbivirus. About 30 species of Culicoides have been identified as competent BTV vectors worldwide. Bluetongue virus (BTV) is spread by the bites of Culicoides midges and can infect ruminant livestock such as cattle, sheep, and goats, wild ruminants such as deer, and camelids.