Genetic influences on seasonal decline in the fertility of female turkeys.

E. A. Dunnington, H. P. Van Krey, R. M. Hulet, D. M. Denbow

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Daughter-dam pairs of white, large-bodied, turkey breeder hens (108) were reared under similar husbandry conditions, and their egg production and fertility were monitored from the onset of lay for 6 mo. On a monthly basis, percentage fertility was compared by daughter-dam regressions to estimate heritabilities. The heritability estimates were 18.36, and 38%, respectively, for the 2nd, 3rd, and 4th mo of lay; but no estimates could be made for Months 1, 5, or 6. The heritability of percentage fertility for Months 2, 3, and 4 combined was 42%. The proportion of hens that remained above 75% fertility declined each month for both dams and daughters, except in one case. Thus, the seasonal decline in fertility appears to have a genetic component.

Original languageEnglish (US)
Pages (from-to)365-368
Number of pages4
JournalPoultry science
Volume69
Issue number3
DOIs
StatePublished - Mar 1990

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

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