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

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

doi:10.3382/ps.0690365

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

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

Animal Science

Research output: Contribution to journal › Article › peer-review

2 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 language	English (US)
Pages (from-to)	365-368
Number of pages	4
Journal	Poultry science
Volume	69
Issue number	3
DOIs	https://doi.org/10.3382/ps.0690365
State	Published - Mar 1990

All Science Journal Classification (ASJC) codes

Animal Science and Zoology

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10.3382/ps.0690365

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@article{3abe049ec174484981b058369095dd28,

title = "Genetic influences on seasonal decline in the fertility of female turkeys.",

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.",

author = "Dunnington, {E. A.} and {Van Krey}, {H. P.} and Hulet, {R. M.} and Denbow, {D. M.}",

note = "Funding Information: The project was supported, in part, by Virginia Poultry Checkoff Funds.",

year = "1990",

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doi = "10.3382/ps.0690365",

language = "English (US)",

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pages = "365--368",

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T1 - Genetic influences on seasonal decline in the fertility of female turkeys.

AU - Dunnington, E. A.

AU - Van Krey, H. P.

AU - Hulet, R. M.

AU - Denbow, D. M.

N1 - Funding Information: The project was supported, in part, by Virginia Poultry Checkoff Funds.

PY - 1990/3

Y1 - 1990/3

N2 - 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.

AB - 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.

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

Abstract

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