Supplemental progestin increases pregnancy rates in suckled beef cows

Citation data:

Kansas Agricultural Experiment Station Research Reports, Issue: 1, Page: 104-106

Publication Year:
2000
Usage 6
Downloads 5
Abstract Views 1
Repository URL:
http://newprairiepress.org/kaesrr/vol0/iss1/411
DOI:
10.4148/2378-5977.1814
Author(s):
Lamb, G.C.; Cartmill, J.A.; Hensley, B.A.; El-Zarkouny, S.E.; Marple, T.J.; Stevenson, Jeffrey S.; Grieger, David M.
Publisher(s):
New Prairie Press; Kansas State University. Agricultural Experiment Station and Cooperative Extension Service
Tags:
Cattlemen's Day; 2000; Kansas Agricultural Experiment Station contribution; no. 00-287-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 850; Beef; Cows; AI; Estrus-Ovulation synchronization; GnRH; PGF2α; Progestin; Animal Sciences; Other Animal Sciences
article description
In two experiments, combining a source of progestin with the ovulation synchronization protocol using gonadotropin-releasing hormone plus prostaglandin F2α (GnRH + PGF2α) tended to increase or statistically increase pregnancy rates in suckled cows compared to GnRH + PGF2α alone. These improvements were accomplished without any detected estrus when cows were inseminated and received a second injection of GnRH at 48 hr after PGF2α.