Analysis of the combined effect of the spermatozoal degeneration allele (Sd) and homozygosity of the rose comb allele (R) on the duration of fertility of roosters (Gallus domesticus).

doi:10.3382/ps.0711939

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Article

Analysis of the combined effect of the spermatozoal degeneration allele (Sd) and homozygosity of the rose comb allele (R) on the duration of fertility of roosters (Gallus domesticus).

Poultry science - 1 Nov 1992

Froman D P, Kirby J D, al-Aghbari A M

Abstract excerpt

Roosters homozygous for the rose comb allele (R/R) are subfertile. Likewise, roosters bearing the dominant spermatozoal degeneration allele (Sd) are subfertile. The objective of the present research was to see whether these effects were cumulative. Domestic fowl were bred in order to obtain males...

Topics

Alleles
Animals
Chickens
Infertility, Male
Male
Poultry Diseases

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