Supplemental progestin increases pregnancy rates in suckled beef cows

Date

2010-08-23T19:03:09Z

Journal Title

Journal ISSN

Volume Title

Publisher

Kansas State University. Agricultural Experiment Station and Cooperative Extension Service

Abstract

In two experiments, combining a source of progestin with the ovulation synchronization protocol using gonadotropin-releasing hormone plus prostaglandin F2a (GnRH + PGF2a) tended to increase or statistically increase pregnancy rates in suckled cows compared to GnRH + PGF2a alone. These improvements were accomplished without any detected estrus when cows were inseminated and received a second injection of GnRH at 48 hr after PGF2a.

Description

Keywords

Beef, Cows, AI, Estrus-Ovulation synchronization, GnRH, PGF2a, Progestin

Citation