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The Estrous Cycle of Cattle

Filed Under:
Publication Number: P2616
Updated: January 12, 2016
View as PDF: P2616.pdf

The estrous cycle of cattle is the period from one estrus (heat, phase of sexual receptivity) to the next estrus. For the cow and heifer, this period averages 21 days, with a typical range of 18 to 24 days in length. The reproductive function of a cow or heifer is characterized by whether she displays normal estrous cycles.

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