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
in English
| LILACS
| ID: lil-520040
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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Poultry Diseases
/
Breeding
/
Chickens
/
Heart
Type of study:
Diagnostic study
Limits:
Animals
Language:
English
Journal:
Genet. mol. res. (Online)
Journal subject:
Molecular Biology
/
Genetics
Year:
2007
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Aviagen do Brasil Ltda/BR
/
Universidade de São Paulo/BR
/
Universidade do Estado de Santa Catarina/BR
Similar
MEDLINE
...
LILACS
LIS