Abstract
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.
Keywords: 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
How to Cite:
Lamb, G., Cartmill, J., Hensley, B., El-Zarkouny, S., Marple, T., Stevenson, J. S. & Grieger, D. M., (2000) “Supplemental progestin increases pregnancy rates in suckled beef cows”, Kansas Agricultural Experiment Station Research Reports 1(1), 104-106. doi: https://doi.org/10.4148/2378-5977.1814
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