Genetic trends for live weight traits reflect breeding strategies in registered Charolais Farms in Mexico.
Trop Anim Health Prod
; 48(8): 1729-1738, 2016 Dec.
Article
em En
| MEDLINE
| ID: mdl-27696327
Genetic trends are commonly used to verify genetic improvement; however, there are few reports on beef cattle in Mexico. Data from 1998 to 2013 from four Charolais bull breeding farms were examined to verify the genetic responses to different breeding management and selection criteria. Analysis included the comparison of regression lines of breeding values for birth (BW), weaning (WW) and yearling weights (YW), and maternal weaning weight (MWW) on the year of birth of the animals. Results revealed differential genetic progress for BW and YW and indicated that the overall analysis may have diluted the perception of genetic progress from the farmer's point of view. The use of breeding values as a tool for selection is effective to achieve genetic progress, even in negatively correlated traits, such as birth weight and yearling weight.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peso ao Nascer
/
Peso Corporal
/
Bovinos
/
Criação de Animais Domésticos
Limite:
Animals
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Trop Anim Health Prod
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos