The effect of GnRH on pregnancy rates in estrus-synchronized beef heifers

Authors

M. Ferguson
L. Corah

Keywords

Cattlemen's Day, 1986; Kansas Agricultural Experiment Station contribution; no. 86-320-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 494; Beef; GnRH; Pregnancy rates; Estrus-synchronized

Abstract

Injecting 100 mcg of GnRH into cycling heifers at artificial insemination following estrus synchronization with either prostaglandin or Syncro-Mate-B® did not improve first service conception rate. However, GnRH improved first service conception in Syncro-Mate-B®-treated heifers that did not exhibit estrus prior to breeding and were bred by appointment.

Recommended Citation

Ferguson, M. and Corah, L. (1986) "The effect of GnRH on pregnancy rates in estrus-synchronized beef heifers," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.2396