Direct Comparison of Natural Service versus Timed Artificial Insemination

Reproductive Efficiency and Economics

Authors

  • F. S. Lima Department of Large Animal Clinical Sciences, University of Florida, Gainesville, Florida 32610
  • C. A. Risco Department of Large Animal Clinical Sciences, University of Florida, Gainesville, Florida 32610
  • A. DeVries Department of Animal Sciences, University of Florida, Gainesville, Florida 32610
  • M. J. Thatcher Department of Large Animal Clinical Sciences, University of Florida, Gainesville, Florida 32610
  • M. B. Benzaquen Aurora Organic Dairy, Boulder, Colorado
  • W. W. Thatcher Department of Animal Sciences, University of Florida, Gainesville, Florida 32610

DOI:

https://doi.org/10.21423/aabppro20084413

Keywords:

estrus detection, pregnancy rate, economic losses, natural service, timed artificial insemination, reproductive performance

Abstract

Poor estrus detection contributes to low pregnancy rate (rate of pregnancy by day postpartum [pp]; PR) and economic losses on dairy farms. The use of natural service (NS) and timed artificial insemination (TAI) are two options that minimize problems with detection of estrus. The objective of this study was to compare reproductive performance and economics between TAI and NS breeding systems.

Cover image of the 41st Conference Proceedings: A herd of cattle standing in the field, framed by a cloudy sky. Yellow background.

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Published

2008-09-25

Issue

2008

Section

Research Summaries