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Details van artikel 9 van 19 gevonden artikelen
| Titel: |
Genetics of hatchability and its components and some production traits of chickens |
| Auteur: |
Hunton, P. |
| Verschenen in: |
British poultry science |
| Paginering: | Jaargang 12 (1971) nr. 2 pagina's 213-223 |
| Jaar: |
1971-04 |
| Inhoud: |
Twenty-egg samples from individual pullets belonging to four closed pedigreed populations were incubated to obtain hatchability and embryo mortality data. Egg production, egg weight and body weight data were obtained from the same pullets and comprehensive variance and covariance analyses were performed on the entire body of data. A slight but consistent genetic relationship was noted between hatch-ability and egg production, mainly due to the influence of embryo viability during the final 12 d of incubation. Limited evidence existed suggesting negative genetic correlations between egg size and hatchability. It is suggested that this relationship may be of the curvilinear type and this is substantiated by some data from a population selected for increased egg size. The results are discussed from the viewpoint of their possible significance in practical breeding programmes. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 19 gevonden artikelen
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