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Related Experiment Videos

Turkey breeder hen performance by strain during consecutive lay periods

T D Siopes1

  • 1Department of Poultry Science, North Carolina State University, Raleigh 27695-7608, USA.

Poultry Science
|August 1, 1995
PubMed
Summary

This study compared reproductive performance in Large White Turkey breeder hens. Strain differences were observed in body weight, egg production, and egg composition, but light intensity had minimal impact.

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Area of Science:

  • Animal Science
  • Poultry Science
  • Reproductive Biology

Background:

  • Commercial turkey production relies on optimizing breeder hen performance.
  • Understanding strain-specific reproductive traits is crucial for genetic selection and management.
  • Environmental factors like lighting can influence reproductive outcomes in poultry.

Purpose of the Study:

  • To evaluate and compare the reproductive performance of three commercially available Large White Turkey breeder hen strains (Nicholas, British United, Hybrid).
  • To assess the impact of supplemental light intensity on reproductive parameters.
  • To identify strain-specific differences and interactions with environmental factors over two lay periods.

Main Methods:

  • Identical management of breeder hens across two consecutive lay periods (1st-yr and recycled).

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  • Evaluation of two supplemental light intensities (351 vs 24 lx) during the first lay period.
  • Data collection on onset of oviposition, egg production, body weight (BW), feed consumption, livability, egg weight, and egg components.

    • Main Results:

    • No significant differences in livability or genetic interactions with light intensity were found among strains.
    • Significant strain and year effects, along with a strain-by-year interaction, were observed for body weight and egg weight.
    • British United hens produced more eggs, Nicholas hens laid heavier eggs, and Hybrid hens had a greater percentage of eggshell.

    Conclusions:

    • Strain significantly influences key reproductive traits in Large White Turkey breeder hens, including body weight, egg production, and egg composition.
    • Recycled hens generally exhibited heavier body weights and higher egg production than first-year hens.
    • While light intensity showed minimal effects, strain selection is critical for optimizing turkey breeder hen reproductive efficiency.