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Welfare indicators during broiler slaughtering.

C Grilli1, A R Loschi, S Rea

  • 1a School of Biosciences and Veterinary Medicine , University of Camerino , Matelica , Italy.

British Poultry Science
|January 9, 2015
PubMed
Summary
This summary is machine-generated.

This study identified key poultry welfare indicators during slaughter, focusing on handling, lairage, and stunning. Post-mortem inspection for traumatic injuries can reveal issues in prior handling and transport procedures.

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Area of Science:

  • Animal Welfare Science
  • Food Animal Production
  • Veterinary Public Health

Background:

  • Optimizing poultry welfare during slaughter is crucial for ethical practices and meat quality.
  • Identifying reliable welfare indicators across different stages of the slaughter process is essential for effective monitoring.

Purpose of the Study:

  • To determine the most relevant welfare indicators for poultry during unloading, lairage, stunning, killing, and post-mortem inspection.
  • To evaluate specific metrics such as unloading duration, lairage time, environmental conditions, shackling time, and stunning efficacy.

Main Methods:

  • Observational study within a poultry slaughter plant.
  • Measurement of key variables including lairage duration, environmental parameters (temperature, humidity), shackling duration, and electrical stunning parameters.
  • Assessment of physiological indicators of consciousness and stunning effectiveness (corneal reflex, spontaneous movements, response to stimuli).
  • Post-mortem inspection for traumatic injuries.

Main Results:

  • Lairage time showed a weak correlation with 'dead on arrival' rates.
  • Heat stress was managed through ventilation, cage arrangement, and stocking density.
  • An acceptable shackling period was determined to be approximately 30 seconds.
  • Corneal reflex indicated animals were alive; spontaneous wing flapping, eye blinking, and response to pain indicated effective stunning.

Conclusions:

  • Recent traumatic injuries identified during post-mortem inspection serve as a valid indicator for evaluating and improving handling, transport, and loading procedures.
  • Specific physiological and environmental indicators can effectively monitor poultry welfare during slaughter.