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Related Experiment Videos

Replacing hens in cages: effect on subsequent egg production.

J V Craig1, N A Okpokho

  • 1Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506.

Poultry Science
|May 1, 1988
PubMed
Summary

Replacing deceased hens in multi-hen cages did not significantly impact egg production rates in subsequent periods. Egg laying rates remained largely unaffected, suggesting minimal disruption to flock well-being after hen replacement.

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Area of Science:

  • Animal Science
  • Poultry Husbandry
  • Animal Welfare

Background:

  • Maintaining consistent egg production in commercial poultry operations is crucial.
  • Hen mortality in multi-hen cages necessitates decisions regarding group replacement.
  • The impact of replacing deceased hens on the remaining flock's productivity is not fully understood.

Purpose of the Study:

  • To investigate whether replacing hens that died in multi-hen cages affects the subsequent well-being of the group.
  • To assess the impact of hen replacement on the rate of egg production as an indicator of well-being.

Main Methods:

  • Four comparisons were conducted involving multi-hen cages where deceased hens were replaced.
  • Egg production rates were monitored in replaced and non-replaced groups over two 5-week periods.

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  • Statistical analyses were performed to detect significant differences in the rate of lay.

    • Main Results:

    • A significantly lower rate of lay was observed in only one of the four comparisons during the initial 5-week period post-replacement.
    • No significant differences in egg production rates were detected between replaced and non-replaced groups during the second 5-week period.
    • The findings suggest that replacing deceased hens has a limited negative impact on overall egg production.

    Conclusions:

    • Replacing deceased hens in multi-hen cages generally does not lead to a significant, sustained decrease in egg production.
    • The well-being of the remaining flock, as indicated by egg production, appears to be minimally affected by hen replacement.
    • Further discussion on the practical implications of replacing vs. not replacing hens in commercial settings is warranted.