Factors affecting conception rates in heifers and cows synchronized with Syncro-Mate-B®

Authors

J.T. Brink
C.D. Middleton
G.H. Kiracofe

Keywords

Cattlemen's Day, 1985; Kansas Agricultural Experiment Station contribution; no. 85-319-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 470; Beef; Conception rates; Synchronized

Abstract

In five trials during 1983 and 1984, 238 cows and 54 heifers were synchronized with Syncro-Mate-B® and artificially inseminated 48 hours after implant removal. The conception rate was 42.5% in cows that were cycling and 19.8% in cows that were not cycling before Syncro-Mate-B® treatment. Heifers started on the Syncro-Mate-B® treatment before day 11 of the estrous cycle had a higher conception rate (64.3%) than heifers started after day 11 (38.5%). Conception rates among the trials varied from 19.8 to 64.3%.

Recommended Citation

Brink, J.T.; Middleton, C.D.; and Kiracofe, G.H. (1985) "Factors affecting conception rates in heifers and cows synchronized with Syncro-Mate-B®," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.2451