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What is the average duration of standing the heat in cattle?

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What is the average duration of standing the heat in cattle?

(a) 4 hours

(b) 12 hours

(c) 70 hours

(d) 8 hours

The question was asked in homework.

This interesting question is from Diseases and Deficiency topic in division Cow Health of Dairy Engineering

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Correct answer is (b) 12 hours

Explanation: The average duration of standing heat is 15 to 18 hours, but heat duration may vary from 8 to 30 hours among cows. An estrous cow usually stands to be mounted 20 to 55 times during her estrous period. Each mount lasts three to seven seconds.

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