Genotype-environment interaction on milk yield of Holstein cows - DOI: 10.4025/actascianimsci.v30i2.4706
The effects of sire-environment interaction on genetic evaluation were investigated by analyzing 108,702 records of milk yield (305ME) of Holstein cows from the states of Minas Gerais, São Paulo, Paraná, Santa Catarina and Rio Grande do Sul. A Multivariate animal model was applied to estimate of gen...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Brasil |
| Institución: | Universidade Estadual de Maringá (UEM) |
| Repositorio: | Acta Scientiarum. Animal Sciences (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:periodicos.uem.br/ojs:article/4706 |
| Acceso en línea: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4706 |
| Access Level: | acceso abierto |
| Palabra clave: | Markov chain correlation variance components heritability cadeia de Markov correlação componentes de variância herdabilidade. |
| Sumario: | The effects of sire-environment interaction on genetic evaluation were investigated by analyzing 108,702 records of milk yield (305ME) of Holstein cows from the states of Minas Gerais, São Paulo, Paraná, Santa Catarina and Rio Grande do Sul. A Multivariate animal model was applied to estimate of genetic variance and covariance components, using Gibbs sampling. The a posteriori means of genetic variance in Santa Catarina and Rio Grande do Sul were higher (p < 0.001) than estimates in others states, even though the estimates did not vary (p > 0.05) between these two states. Heritability estimates of states ranged from 0.24 to 0.38. Genetic correlations among states were low and ranged from 0.07 to 0.33. Spearman’s correlation among sire breeding values ranged from 0.73 to 0.86. These results suggest sire-environment interaction for 305ME in the states of Minas Gerais, São Paulo, Paraná and between the states of Santa Catarina and Rio Grande do Sul. |
|---|