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Behavioral changes in dairy cows with mastitis.

C Medrano-Galarza1, J Gibbons, S Wagner

  • 1Applied Animal Behavior and Animal Welfare Programme, The University of Edinburgh, Easter Bush Veterinary Centre, Roslin, United Kingdom.

Journal of Dairy Science
|October 9, 2012
PubMed
Summary
This summary is machine-generated.

Dairy cows with mild mastitis exhibit altered lying times and increased reactivity during milking, indicating discomfort. Further research is needed to validate pain-specific behaviors in moderate to severe mastitis cases.

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Area of Science:

  • Veterinary Science
  • Animal Behavior
  • Dairy Science

Background:

  • Mastitis is a prevalent and painful condition in dairy cows.
  • Pain detection and management in mastitic cows remain under-researched.
  • Behavioral changes can serve as indicators of pain and discomfort in livestock.

Purpose of the Study:

  • To quantify behavioral alterations in dairy cows diagnosed with clinical mastitis.
  • To assess the impact of intramammary antibiotic treatment on lying behavior and milking interactions.
  • To explore the relationship between mastitis severity and observable pain-related behaviors.

Main Methods:

  • Experiment 1 involved 42 lactating cows (14 mastitic, 28 control), evaluating pain responses over time post-treatment.
  • Behavioral metrics included lying duration, reactivity during milking (stepping, lifting, kicking), weight distribution, and hock-to-hock distance.
  • Experiment 2 examined the effect of intramammary antibiotic infusion on lying and milking behaviors.

Main Results:

  • Mastitic cows spent less time lying down on day 2 post-treatment compared to controls.
  • Reactivity during milking (kicking, lifting, stepping) showed significant differences within mastitic cows across different days.
  • Variability in weight applied to the affected leg was higher in mastitic cows on day 1.
  • Intramammary antibiotic infusion did not significantly alter lying or milking behaviors in experiment 2.

Conclusions:

  • Mild clinical mastitis induces subtle behavioral changes, including altered lying patterns and increased reactivity during milking, suggesting discomfort.
  • Current methodologies may require refinement and validation with analgesic treatments for moderate to severe mastitis to confirm pain-specific behaviors.
  • Further investigation into pain assessment in dairy cows is crucial for improving animal welfare.