Keywords
Cattlemen's Day, 1992; Kansas Agricultural Experiment Station contribution; no. 92-407-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 651; Beef; MGA/PG; Heifers; Timed mating; Conception rate
Abstract
The percentage of heifers conceiving to artificial insemination (AI) following melengestrol acetate/prostaglandin F2"(MGA®/PG) estrous synchronization can be increased by mass insemination of all heifers not showing estrus by 72 h after PG. Inseminating at 12 h after estrus detection all heifers showing estrus within 72 h after PG; then inseminating those not detected in estrus by 72 h after PG as a group increased the proportion of heifers conceiving to AI by 10.8%.
First page
45
Last page
46
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Larson, Robert L. and Corah, L.R.
(1992)
"Synchronization of estrus in yearling beef heifers with the MGA®/prostaglandin F2α system: III. timed insemination after 72 hours of estrous detection,"
Kansas Agricultural Experiment Station Research Reports:
Vol. 0:
Iss.
1.
https://doi.org/10.4148/2378-5977.2156
