Factors affecting conception after synchronization with Lutalyse® and timed insemination (1981)

Authors

M. King
G.H. Kiracofe
R.M. McKee

Keywords

Cattlemen's Day, 1981; Report of progress (Kansas State University. Agricultural Experiment Station); 394; Beef; Lutalyse; Synchronization; Insemination

Abstract

With heifers given two injections of Lutalyse 11 days apart, and inseminated 80 hours after the second injection, only 20% in heat before 48 hours conceived compared with 65% that were in heat 48 to 80 hours after injection. Those showing heat early may have been inseminated too late. Heifers receiving their second injection on day 7. 8, or 9 of the cycle came into heat earlier than those injected on days 10 through 15.

Recommended Citation

King, M.; Kiracofe, G.H.; and McKee, R.M. (1981) "Factors affecting conception after synchronization with Lutalyse® and timed insemination (1981)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.2581