Inferencia bayesiana de parámetros genéticos para características de crecimiento en búfalos doble propósito en Colombia

ABSTRACT: Knowledge of genetic parameters is essential in establishing breeding programs, which aim to optimize productivity. The objective of this study was to estimate variance components for 3 growth traits in buffaloes at 18 month age. The traits were weight (W18), longissimus muscle area (REA) and rump fat thickness (RFT). A total of 179 buffaloes with 7086 pedigree animals divided in 7 contemporary groups with high genetic connectedness. A Bayesian methodology with Gibbs sampling was used to fit univariate linear models. The marginal posterior mean of the heritability was 0.256 for REA, 0.214 for RFT and 0.353 for W18. Standard error found was low denoting high accuracy in estimates through the methodology used. In conclusion, the heritabilities for W18, REA and RFT and the additive variance show the possibility to make selection for these traits.

• Autores: Taborda, J J; Cerón Muñoz, Mario Fernando; Barrera Rivera, Diana Carolina; Corrales Álvarez, Juan David; Agudelo Gómez, Diver Antonio
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2015
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/11034
• Acceso en línea: http://hdl.handle.net/10495/11034
• Palabra clave: Evaluación genética; Genetic evaluation; Heredabilidad; Heritability; Producción de carne; Meat production
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-nd/4.0/