2014 protocols for synchronization of estrus and ovulation in beef cows and heifers

Authors

  • S. K. Johnson Northwest Research and Extension Center, Kansas State University, Colby, KS
  • R. N. Funston West Central Research and Extension Center, University of Nebraska, North Platte, NE
  • J. B. Hall Department of Animal & Veterinary Sciences, University of Idaho, Carmen, ID
  • G. C. Lamb North Florida Research and Education Center, University of Florida, Marianna, FL
  • J. W. Lauderdale Department of Animal Science, Michigan State University, Kalamazoo, MI
  • D. J. Patterson Division of Animal Sciences, University of Missouri, Columbia, MO
  • G. A. Perry Department of Animal and Range Sciences, South Dakota State University, Brookings, SD

DOI:

https://doi.org/10.21423/aabppro20143671

Keywords:

beef cattle, herd genetics, artificial insemination, synchronization, estrus, ovulation

Abstract

Biotechnology presents beef producers with an unprecedented opportunity to improve herd genetics. Producers have more precise tools for genetic selection. Research has led to a better understanding of methods to induce and synchronize estrus and ovulation in postpartum cows and replacement heifers. These improvements enable producers to expand their use of artificial insemination (AI) and make it possible to inseminate cows at predetermined times and to achieve pregnancy rates comparable to those gained after several days of detecting heat. Many options exist for synchronization of estrus and ovulation. This short list of protocols, based on research and field use by reproductive physiologists, veterinarians, and professionals in related industries, is intended to help you select an appropriate synchronization option.

Cover image of the 47th Conference Proceedings: An image of a herd of cattle in a field at dusk. Three cows are standing in the foreground, looking adorable. Yellow background.

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Published

2014-09-18

Issue

2014

Section

Beef Sessions

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