Milk Urea and Protein Concentrations in Milk of Dairy Cows as a Diagnostic Tool

Factors Affecting Analysis and Interpretation

Authors

  • R. Eicher
  • E. Bouchard
  • M. Bigras-Poulin
  • A. Tremblay

DOI:

https://doi.org/10.21423/aabppro19995521

Keywords:

Milk urea, milk protein, somatic cell count, daily milk yield, protein-energy balance

Abstract

Milk urea (UREA), together with percentage milk protein (PROT), are increasingly being used as indicators of the protein-energy balance of the ration and for monitoring nutrition or diagnosing feeding disorders. Goals of this study were a) determine the influence of the variations among quarters, the somatic cell count, sample conservation, centrifugation, and the time of sampling during the day on UREA, and to propose a sample collection procedure for herds that are not on a Dairy Herd Improvement (DHI) program; and b) analyze the effects of parity, daily milk yield, days in lactation, somatic-cell count, and herd and feeding factors on UREA and PROT.

Cover image of the 33rd Conference Proceedings: Herd of Holstein cattle grazing in a field. Large barn and silos in background. Yellow background.

Downloads

Published

1999-09-23

Issue

1999

Section

Research Summaries 1

Most read articles by the same author(s)

1 2 > >>