Estrous Synchronization and Fixed-Time Artificial Insemination
Beef cows in a feild.
PDF-2016

Keywords

Estrous synchronization
AN324

Categories

How to Cite

Mercadante, Vitor R. G., Darren D. Henry, Francine M. Ciriaco, Pedro L. P. Fontes, Nicky Oosthuizen, and G. Cliff Lamb. 2016. “Estrous Synchronization and Fixed-Time Artificial Insemination: AN324/AN324, 1/2016”. EDIS 2016 (2). Gainesville, FL:5. https://doi.org/10.32473/edis-an324-2016.

Abstract

The economic success of beef cow-calf operations depends on the production of one healthy calf per cow per year. To achieve this goal, cow-calf producers need to overcome several obstacles related to the cow, bull, and offspring. Over the last four decades, several advances in reproductive biotechnologies, such as artificial insemination (AI), synchronization of estrus, and fixed-time AI (TAI), have allowed producers to improve the genetic traits of their cattle and shorten the lengths of both the breeding season and subsequent calving season, which can lead to increased overall profitability of cow-calf production systems. This 5-page fact sheet discusses benefits of synchronization and TAI use, obstacles that hinder adoption of reproductive biotechnologies, objectives of the Beef Reproduction Task Force, and factors that can affect the success of TAI programs. Written by Vitor R. G. Mercadante, Darren D. Henry, Francine M. Ciriaco, Pedro L. P. Fontes, Nicky Oosthuizen, and G. Cliff Lamb, and published by the UF Department of Animal Sciences, January 2016.

https://doi.org/10.32473/edis-an324-2016
PDF-2016

References

Beef Reproduction Task Force (BRTF). 2016. "Applied Reproductive Strategies in Beef Cattle (ARSBC)." Accessed January 28, 2016. http://beefrepro.unl.edu/

Johnson, S. K., R. N. Funston, J. B. Hall, D. J. Kesler, J. W. Lauderdale, G. C. Lamb, D. J. Patterson, G. A. Perry, and D. R. Strohbehn. 2011. "Multi-state Beef Reproduction Task Force provides science based recommendations for the application of reproductive technologies." J. Anim. Sci. 89: 2950-2954. https://doi.org/10.2527/jas.2010-3719

Lamb, G. C., C. R. Dahlen, J. E. Larson, G. Marquezini, and J. S. Stevenson. 2010. "Control of the estrous cycle to improve fertility for fixed-time artificial insemination (TAI) in beef cattle: A review." J. Anim. Sci. 88: E181-192E. https://doi.org/10.2527/jas.2009-2349

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Stevenson, J. S., G. C. Lamb, S. K. Johnson, M. A. MedinaBritos, D. M. Grieger, K. R. Harmoney, J. A. El-Zarkouny, C. R. Dahlen, and T. J. Marple. 2003. "Supplemental norgestomet, progesterone, or melengestrol acetate increases pregnancy rates in suckled beef cows after timed inseminations." J. Anim. Sci. 81: 571-586. https://doi.org/10.2527/2003.813571x

USDA. 2009. "Part II. Reference of beef cow-calf management practices in the United States, 2007-08." Beef 2007-08. Accessed December 15, 2015. https://www.aphis.usda.gov/animal_health/nahms/beefcowcalf/downloads/beef0708/Beef0708_dr_PartII.pdf

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