Data/hora: 22/06/2024 19:25:22

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 14/02/2017
Data da última atualização: | 30/01/2023
Autoria: | LI, X.; LUND, M. S.; ZHANG, Q.; COSTA, C. N.; DUCROCQ, V.; SU, G.
Afiliação: | X. Li, Aarhus University, Denmark; Ministry of Agriculture of China; Guangzhou Higher Education Mega Center, Guangzhou, China; M. S. Lund, Aarhus University, Denmark; Q. Zhang, Ministry of Agriculture of China; CLAUDIO NAPOLIS COSTA, CNPGL; V. Ducrocq, INRA; G. Su, Aarhus University, Denmark.
Título: | Short communication: Improving accuracy of predicting breeding values in Brazilian Holstein population by adding data from Nordic and French Holstein populations.
Ano de publicação: | 2016
Fonte/Imprenta: | Journal of Dairy Science, v. 99, n. 6, p. 4574-4579, 2016.
Idioma: | Inglês
Conteúdo: | The present study investigated the improvement of prediction reliabilities for 3 production traits in Brazilian Holsteins that had no genotype information by adding information from Nordic and French Holstein bulls that had genotypes. The estimated across-country genetic correlations (ranging from 0.604 to 0.726) indicated that an important genotype by environment interaction exists between Brazilian and Nordic (or Nordic and French) populations. Prediction reliabilities for Brazilian genotyped bulls were greatly increased by including data of Nordic and French bulls, and a 2-trait single-step genomic BLUP performed much better than the corresponding pedigree-based BLUP. However, only a minor improvement in prediction reliabilities was observed in nongenotyped Brazilian cows. The results indicate that although there is a large genotype by environment interaction, inclusion of a foreign reference population can improve accuracy of genetic evaluation for the Brazilian Holstein population. However, a Brazilian reference population is necessary to obtain a more accurate genomic evaluation.
Palavras-Chave: | BLUP; Genotype by environment interaction; Holstein population; Single-step genomic BLUP.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (23294-1) - UPC - AP - DD -  -  -  - DIS