VGO-0057
QUESTION
Duration of estrus in cow is?
OPTIONS
(A) 3-4 days
(B) 5 days
(C) 12-24 hrs
(D) 40-48 days
ANSWER
(C) 12-24 hrs
EXPLANATION
Standing estrus in a cow commonly lasts about 12 to 24 hours, although shorter heats occur and expression varies with breed, environment, and production level. Three to four days and five days are too long for the normal bovine receptive period. Forty to forty-eight days exceeds even the usual complete estrous cycle, so it cannot represent normal estrus duration.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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