Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/13011
Tipo do documento: Artigo
Título: Influence of breeds genetic composition on the quality of milk from primiparous cows
Autor: Melo, Aurelio Ferreira
Silva, Marco Antônio Pereira da
Silva, Felipe Rocha
Carmo, Ruthele Moraes do
Neves, Rodrigo Balduíno Soares
Nicolau, Edmar Soares
Lage, Moacir Evandro
Resumo: Forty-four crossbred primiparous cows participated in this study, namely: 15 1/2 animals corresponding to 1/2 Holstein (HO) x 1/2 Gyr; 15 3/4 animals corresponding to (3/4 HO x 1/4 Gyr) and 14 7/8 animals corresponding to (7/8 HO x 1/8 Gyr) raised under similar handling and feeding conditions. The sample collection was carried out between January and March 2013. To compare the quality of milk among breeds genetic compositions, the study was set up in a completely randomized design. Data of variables fat, protein, lactose contents, fat free dry matter (DDE), urea, somatic cell count, electrical conductivity, pH, titratable acidity and production were submitted to analysis of variance using the Tukey test at 5% probability for comparison of means between treatment 1 (1/2 HO x 1/2 Gyr), treatment 2 (3/4 HO x 1/4 Gyr) and treatment 3 (7/8 HO x 1/8 Gyr). Statistical analyses were performed using the SISVAR® - UFLA software. Correlation analysis between variables was performed using the ASSISTAT software. The results demonstrate that the genetic makeup of the different races holstein / Gyr primiparous cows did not affect the quality of the milk produced. The values of the chemical constituents of milk have been considered suitable for human consumption. Titratable acidity and milk production were higher for 3/4 Holstein/Gyr animals.
Palavras-chave: Protein
Electrical conductivity
Titratable acidity
Holstein
Gyr
País: Africa do sul
Unidade acadêmica: Escola de Veterinária e Zootecnia - EVZ (RG)
Citação: MELO, A. F. ; SILVA, M. A. P. ; SILVA, F. R. ; CARMO, R. M. ; NEVES, R. B. S. ; NICOLAU, E. S. ; LAGE, M. E. Influence of breeds genetic composition on the quality of milk from primiparous cows. African Journal of Biotechnology, Johannesburg, v. 14, n. 15, p. 1334-1341, Apr. 2015.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.5897/AJB2014.14127
Identificador do documento: 10.5897/AJB2014.14127
URI: http://repositorio.bc.ufg.br/handle/ri/13011
Data de publicação: Abr-2015
Aparece nas coleções:EVZ - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Artigo - Aurelio Ferreira Melo - 2015.pdf318,41 kBAdobe PDFThumbnail
Baixar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons