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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/70981
Título: 
Growth curves and genetic parameters in colombian buffaloes (Bubalus bubalis Artiodactyla, Bovidae): Curvas de crecimiento y parámetros genéticos en búfalos (Bubalus bubalis Artiodactyla, Bovidae) en Colombia
Autor(es): 
Instituição: 
  • University of Antioquia
  • Lasallista Universitary Corporation
  • Universidade Estadual Paulista (UNESP)
ISSN: 
0120-0690
Resumo: 
Non-linear mathematical functions proposed by Brody, Gompertz, Richards, Bertalanffy and Verhulst were compared in several buffalo production systems in Colombia. Herds were located in three provinces: Antioquia, Caldas, and Cordoba. Growth was better described by the curves proposed by Brody and Gompertz. Using the datasets from herds from Caldas, heritabilities for traits such as weaning weight (WW), weight and maturity at one year of age (WY and MY, respectively), age at 50% and 75% of maturity (A50% and A75%, respectively), adult weight (β0), and other characteristics, were also estimated. Direct and maternal heritabilities for WW were 0.19 and 0.12, respectively. Direct heritabilities for WY, MY, A50%, A75% and β0 were 0.39, 0.15, 0.09, 0.20 and 0.09, respectively. The genetic correlation for β0 and WY was -0.47, indicating that selection for heavy weight at one year of age will lead to lower weight at adult age. These data suggest that selection based on maturity traits can generate changes in characteristics of economic importance in beef-type buffalo farms. © 2012 Universidad de Antioquia.
Data de publicação: 
1-Abr-2009
Citação: 
Revista Colombiana de Ciencias Pecuarias, v. 22, n. 2, 2009.
Palavras-chaves: 
  • Genetic parameters
  • Non-linear functions
  • Tropical production systems
  • Artiodactyla
  • Bovidae
  • Bubalus
  • Bubalus bubalis
Fonte: 
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-06902009000200007
Endereço permanente: 
Direitos de acesso: 
Acesso aberto
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/70981
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