The relationship between concentrations of non-esterified fatty acids and β-hydroxybutyric acid in transition dairy cows

Authors

  • S. Mann Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • M. M. McCarthy Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853
  • D. V. Nydam Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • T. R. Overton Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853
  • J. A. A. McArt Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853

DOI:

https://doi.org/10.21423/aabppro20153587

Keywords:

fatty acids, dairy cattle, negative energy balance, NEB

Abstract

Both non-esterified fatty acids (NEFA) and β-hydroxybutyric acid (BHBA) concentrations have been used as cow and herd-level markers of negative energy balance during the transition period of dairy cows to monitor disease risk and reproductive and milking performance. Prior evidence based on cross-sectional data suggests that the NEFA and BHBA are not well correlated. The objective of this study was to describe the correlation between NEFA and BHBA concentrations of dairy cows in the peripartum period. We hypothesized that accounting for possible lag times between elevation of NEFA and BHBA by using longitudinal data could improve their relationship.

Cover image of the 48th Conference Proceedings: An image of Dr. Fred Gingrich II dressed in a red shirt and overalls and standing in front of dairy cows in a barn interior. Yellow background.

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Published

2015-09-17

Issue

2015

Section

Research Summaries 2

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