Genetic trends of absolute and relative heart weight in a male broiler line
Genet. mol. res. (Online)
; 6(4): 1091-1096, 2007. ilus, tab
Article
em En
| LILACS
| ID: lil-520040
Biblioteca responsável:
BR26.1
ABSTRACT
Data of chickens from a broiler-breeding program have been collected and used for determination of genetic trends of absolute and relative heart weight. The genetic trends have been estimated by regression of the genetic values of the traits over hatch-year. Genetic values of 42,912 individuals, obtained by restricted maximum likelihood, were used for regression analysis. The estimates of the genetic trends for absolute and relative heart weight were found to be -0.08 g and -0.004% per hatch-year, respectively. These trends show that heart weight in the line analyzed, in absolute and relative terms, has tended to decrease, which can make the metabolic disorders due to the reduction in heart weight in broilers even worse.
Texto completo:
1
Índice:
LILACS
Assunto principal:
Doenças das Aves Domésticas
/
Cruzamento
/
Galinhas
/
Coração
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Genet. mol. res. (Online)
Assunto da revista:
BIOLOGIA MOLECULAR
/
GENETICA
Ano de publicação:
2007
Tipo de documento:
Article