MSD Manual

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Overview of Hormonal Control of Estrus

By

Juan E. Romano

, DVM, MS, PhD, DACT, College of Veterinary Medicine, Texas A&M University

Last full review/revision Jan 2014 | Content last modified Jan 2014

Hormones are commonly used to manipulate the estrous cycle. The major indications for hormonal control of estrus are to induce luteolysis, induce ovulation of a mature follicle, suppress estrus, induce cyclicity in anestrous animals, and superovulate cyclic animals. Effective treatments for these manipulations vary among species. A number of treatments currently lack regulatory approval; label instructions should be followed.

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