Factors influencing the initiation of estrous cycles and expression of estrus in beef cows

Date

2010-08-23T19:01:46Z

Journal Title

Journal ISSN

Volume Title

Publisher

Kansas State University. Agricultural Experiment Station and Cooperative Extension Service

Abstract

Body condition, parity, and days postpartum at the onset of the breeding season determine the proportion of cows that initiated first postpartum ovarian activity and ovulated before the start of the breeding season. Hormonal treatments that included both GnRH and a source of progestin enhanced expression of estrus and led to greater pregnancy rates of suckled beef cows.

Description

Keywords

Beef, Suckled cows, Body condition, Parity, Postpartum, Estrus

Citation