Development of a multivariable reproductive index to assess fertility of dairy cows

Authors

  • J. E. P. Santos University ofFlorida, Gainesville, FL 32611
  • P. Pinedo Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523
  • G. Schuenemann College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210
  • R. Bicalho College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • S. Rodrigez-Zas Department of Animal Sciences, University of Illinois, Urbana-Champaign, IL 61801
  • G. Rosa Department of Animal Sciences, University of Wisconsin, Madison, WI 53706

DOI:

https://doi.org/10.21423/aabppro20183205

Keywords:

dairy cattle, fertility, Reproductive efficiency, environment, genetics, Reproductive Index

Abstract

Fertility is a critical component of dairy production and failures to attain and maintain pregnancy are major reasons for production losses in dairy herds. Reproductive efficiency is determined by a number of complex cow and environmental factors. Methodologies refining the identification of cows with low and high fertility would be a valuable tool for research in multiple areas, including genetic selection. Therefore, our objective was to develop a Reproductive Index (RI) to predict the probability of a timely pregnancy in a large population of dairy cows.

Cover image of the 51st Conference Proceedings: A man riding on a pale horse herding cattle on a semi-arid pasture

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Published

2018-09-13

Issue

2018

Section

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