Open Access. Powered by Scholars. Published by Universities.®
Kansas State University Libraries
2012; Kansas Agricultural Experiment Station contribution; no. 13-030-S; Report of progress (Kansas Agricultural Experiment Station and Cooperative Extension Service); 1075; Dairy cows; Human chorionic gonadotropin; Estrus; Reinsemination; Embryo loss
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Reinsemination Intervals After Timed Artificial Insemination Or Estrus-Detected Inseminations (2012), Jeffrey S. Stevenson
Reinsemination Intervals After Timed Artificial Insemination Or Estrus-Detected Inseminations (2012), Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
The objective was to quantify the reinsemination intervals of lactating dairy cows that were either inseminated at estrus or received a timed AI (TAI) at first service. Cows in Experiment 1 were enrolled in a TAI program before first AI after calving. Cows detected in estrus after 50 days in milk (DIM) were inseminated, whereas the remainder continued in the TAI program and were inseminated as scheduled. Cows in Experiment 2 also were enrolled in a TAI program and were inseminated accordingly at first service after calving. On day 7 after TAI, cows were assigned randomly to receive either saline …