Genetic trends of abdominal fat content in a male broiler chicken line
Genet. mol. res. (Online)
;
4(4): 760-764, 2005.
Artículo
en Inglés
| LILACS
| ID: lil-444846
ABSTRACT
Data of chickens from a broiler-breeding program were collected and used to determine the genetic trends of absolute and relative abdominal fat content. The genetic trends were estimated by the regression of trait genetic value averages on hatch-years. Genetic values from 32,485 individuals were used for regression analysis. The genetic trend estimate for absolute abdominal fat content was +0.39 g per year, indicating that abdominal fat deposition in the analyzed line, in absolute terms, tended to increase, making the existing excess fat deposition in the broilers even worse. However, the genetic trend of relative abdominal fat content was not significant, indicating that there is no increase on abdominal fat content when it is corrected for body weight.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Composición Corporal
/
Pollos
/
Sitios de Carácter Cuantitativo
/
Grasa Abdominal
/
Ligamiento Genético
Tipo de estudio:
Estudio diagnóstico
Límite:
Animales
Idioma:
Inglés
Revista:
Genet. mol. res. (Online)
Asunto de la revista:
Biologia Molecular
/
Genética
Año:
2005
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Agroceres Ross Melhoramento Genético de Aves S.A/BR
/
Faculdade de Zootecnia e Engenharia de Alimentos/BR
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