Genetic trends of abdominal fat content in a male broiler chicken line
Genet. mol. res. (Online)
; 4(4): 760-764, 2005.
Article
in English
| LILACS
| ID: lil-444846
Responsible library:
BR1.1
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.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Body Composition
/
Chickens
/
Quantitative Trait Loci
/
Abdominal Fat
/
Genetic Linkage
Type of study:
Diagnostic study
Limits:
Animals
Language:
English
Journal:
Genet. mol. res. (Online)
Journal subject:
Molecular Biology
/
Genetics
Year:
2005
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Agroceres Ross Melhoramento Genético de Aves S.A/BR
/
Faculdade de Zootecnia e Engenharia de Alimentos/BR