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Short communication: Teat skin pH.

L K Fox1, L Y Oura, C R Ames

  • 1College of Veterinary Medicine, Washington State University, Pullman 99163, USA. fox@wsu.edu

Journal of Dairy Science
|January 27, 2004
PubMed
Summary
This summary is machine-generated.

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Postmilking teat disinfection significantly lowers teat skin surface pH in dairy cows. This pH change, crucial for udder health, was observed consistently over a 12-week study period.

Area of Science:

  • Veterinary Science
  • Dairy Science
  • Animal Husbandry

Background:

  • Teat skin surface pH is a critical factor in maintaining udder health and preventing mastitis in dairy cows.
  • Understanding the impact of postmilking teat disinfection on teat skin pH is essential for optimizing udder hygiene protocols.

Purpose of the Study:

  • To investigate the effect of routine postmilking teat disinfection on teat skin surface pH in lactating Holstein cows.
  • To determine if teat skin pH changes over time (12 weeks) or is influenced by milking intervals.

Main Methods:

  • A 12-week study involving 99 lactating Holstein cows, with one half of each udder treated and the other half serving as a control.
  • Weekly measurements of teat skin surface pH were taken on all teats.
  • In a second study, hourly pH measurements were recorded for 16 cows around milking times (pre- and postmilking).

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Main Results:

  • Teat skin pH was significantly affected by the postmilking disinfection treatment (mean pH 7.18 for treated vs. 7.53 for control).
  • No significant effect of study week on teat skin pH was observed.
  • Teat skin pH was significantly lower on treated teats and decreased further postmilking in all teats.

Conclusions:

  • Routine postmilking teat disinfection effectively lowers teat skin surface pH.
  • Lowered teat skin pH, particularly after milking, may contribute to improved udder health and reduced mastitis risk.