Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
Revista Colombiana de Ciencias Pecuarias
versión impresa ISSN 0120-0690versión On-line ISSN 2256-2958
Resumen
MARTINEZ NINO, Carlos A; MANRIQUE PERDOMO, Carlos y A ELZO, Mauricio. Cattle genetic evaluation: a historical perception. Rev Colom Cienc Pecua [online]. 2012, vol.25, n.2, pp.293-311. ISSN 0120-0690.
Mixed model methodology has been the main statistical tool for unbiased genetic animal evaluation and selection of domestic animals, such as bovines, for over thirty years. Since the use of linear mixed models to obtain the best linear unbiased prediction of the breeding value of the individuals in a population was proposed, there have been scientific advances at the statistical and computational level that have led to implement more complex models describing different biological situations and data structures. This work briefly reviews the history of genetic evaluation in cattle emphasizing on the mixed model methodology in which these evaluations are based. The following topics are discussed in this paper: The unibreed animal model, the derivation of the mixed model equations, some extensions of the unibreed animal model (additive direct and maternal effects, random environmental effects, multiple traits model), the mutibreed animal model, models for the genetic evaluation of longitudinal data and, finally, a brief description of genomic evaluation.
Palabras clave : cattle; genetic predictions; mixed models.