Data/hora: 15/06/2024 15:40:07

Biblioteca(s): | Embrapa Gado de Leite; Embrapa Unidades Centrais.
Data corrente: | 11/03/2015
Data da última atualização: | 12/03/2015
Autoria: | COSTA, N. S.; HERMUCHE, P.; COBUCI, J. A.; PAIVA, S. R.; GUIMARÃES, R. F.; CARVALHO JÚNIOR, O. A.; GOMES, R. A. T.; COSTA, C. N.; McMANUS, C. M.
Afiliação: | N. S. COSTA, UNB; P. HERMUCHE, UNB; JAIME ARAUJO COBUCI, UFRGS; SAMUEL REZENDE PAIVA, SRI; R. F. GUIMARÃES, UNB; O. A. CARVALHO JÚNIOR, UNB; R. A. T. GOMES, UNB; CLAUDIO NAPOLIS COSTA, CNPGL; C. M. MCMANUS, UNB.
Título: | Georeferenced evaluation of genetic breeding value patterns in Brazilian Holstein cattle.
Ano de publicação: | 2014
Fonte/Imprenta: | Genetics and Molecular Research, v. 13, n. 4, p. 9806-9816, 2014.
Idioma: | Inglês
Conteúdo: | The aim of this study was to analyze the relationship between environmental and genetic values for milk production and type traits in Holstein cattle in Brazil. The genetic value of 65,383 animals for milk production and 53,626 for type classification were available. Socioeconomic and environmental data were obtained from the Brazilian Institute of Geography and Statistics, the Food and Agriculture Organization of the United Nations, the National Aeronautics and Space Administration, and the National Institute of Meteorology. Five to six clusters were generated for each of the groups of type traits and production levels. The relationships between these traits were assessed using the STEPDISC, DISCRIM and CANDISC procedures in SAS®. Traits within the clusters behaved differently, but, in general, animals with lower genetic values were found in environments that were more stressful for animal production. These differences were mainly associated with temperature, humidity, precipitation and the Normalized Difference Vegetative Index. Genetic values for milk production showed best discrimination between different environments, while type traits showed poor discrimination, possibly because farmers mainly select for milk production. Environmental variations for genetic values in dairy cattle in Brazil should be further examined.
Palavras-Chave: | Conformation; Feet and legs; Type traits; Udder.
Thesaurus Nal: | environment; milk production.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/120316/1/Georeferenced-evaluation-of-genetic-....pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)

Exemplares:

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AI-SEDE - (57396-1) - UPC - AP - DD -  -  -  - DIS