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Related Experiment Videos

Strain comparison of turkey egg components

T R Reidy1, J L Atkinson, S Leeson

  • 1Department of Animal and Poultry Science, University of Guelph, Ontario, Canada.

Poultry Science
|March 1, 1994
PubMed
Summary

Turkey breeder age and strain influence hatching egg composition, with Nicholas eggs being heavier and BUTA eggs showing changes in yolk protein over time. Minor strain differences were observed overall.

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Area of Science:

  • Animal Science
  • Poultry Science
  • Reproductive Biology

Background:

  • Turkey hatching egg composition is crucial for reproductive success.
  • Understanding variations based on genetics and breeder age is essential for optimizing production.

Purpose of the Study:

  • To quantify the physical and chemical components of turkey hatching eggs.
  • To investigate the influence of turkey strain (Nicholas vs. BUTA) and breeder age on egg composition.
  • To compare egg composition between male and female lines of BUTA breeding stock.

Main Methods:

  • Two experiments were conducted involving the analysis of physical and chemical egg components.
  • Eggs from Nicholas and BUTA strains were collected at 3, 12, and 24 weeks of production.
  • Eggs from male and female line BUTA stock were also analyzed for comparative composition.

Main Results:

  • Nicholas strain eggs were consistently heavier, primarily due to increased albumen.
  • While absolute components increased with breeder age, proportional composition remained largely stable.
  • BUTA eggs initially had higher yolk protein, but Nicholas eggs surpassed them later in the production cycle.
  • Yolk lipid and protein decreased in BUTA eggs by the end of the cycle.
  • Stearic acid content in yolk lipid increased with breeder age in both strains.
  • Female line BUTA eggs had a proportionally larger yolk despite similar absolute yolk weights compared to male line eggs.

Conclusions:

  • Turkey strain and breeder age induce minor variations in hatching egg composition.
  • Nicholas strain eggs are heavier with more albumen, while BUTA eggs show dynamic yolk protein changes.
  • Proportional egg composition is relatively consistent across breeder ages, though absolute components increase.

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