Influence of season, ambient temperature, and time until feeding on bacteria counts in pasteurized milk for dairy calves

Authors

  • D. J. Wilson Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, 84322
  • G. M. Goodell The Dairy Authority, Greeley, CO, 80634
  • T. Kelly The Dairy Authority, Greeley, CO, 80634

DOI:

https://doi.org/10.21423/aabppro20123940

Keywords:

waste milk, pasteurization, bacteria counts, seasons, temperature

Abstract

Pasteurization of waste milk fed to calves is increasingly common. The primary objectives of this study were to evaluate milk bacteria counts as time passed following on-farm pasteurization and identify potential differences in bacteria counts over time between seasons and the associated ambient temperatures. A secondary objective was to evaluate, by season, the time after pasteurization until milk bacteria counts became > 20,000 cfu/mL, which has been suggested as an industry-standard upper limit for feeding milk to calves.

Cover image of the 45th Conference Proceedings: Three black-and-white cows lounge in a spring field. Yellow background.

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Published

2012-09-20

Issue

2012

Section

Research Summaries 4

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