PhysiologybioRxiv
Evaluation of the 7 & 7 Synch and 7-day CO-Synch + CIDR protocols for estrus synchronization of beef cows prior to fixed-time artificial insemination with conventional or sex-sorted semen
C. M. Andersen, R. C. Bonacker, E. G. Smith…·J. M. Thomas
This study compares two estrus synchronization protocols in beef cows, finding that 7 & 7 Synch improves estrus expression and pregnancy rates compared to 7-day CO-Synch + CIDR, especially with sex-sorted semen.
DOI 10.1016/j.anireprosci.2021.106892