Understanding Estrus Synchronization of Cattle

Fact Sheet Written by:

Robin Salverson, Extension Livestock Educator, Harding County

George Perry, Extension Beef Reproduction and Management Specialist

And Provided by:

South Dakota State University http://agbiopubs.sdstate.edu

Reproductive failure is a major source of economic loss in the beef industry. The majority of this loss occurs because cows do not become pregnant during a defined breeding season. You can give cows an additional chance to become pregnant during a defined breeding season by using estrous synchronization. Synchronizing estrus is simply manipulating the bovine estrous cycle (see Fact Sheet FS921A for details of the estrous cycle) to cause the majority of cows to show standing estrus around the same time.

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