mastite subclínica e relação da contagem de células somáticas com número de lactações, produção e composição química do leite em vacas da raça holandesa subclinical mastitis and the relationship between somatic cell count with number of lactations, production and chemical composition of the milk

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ID: 151092
2008
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Abstract
Verificaram-se a ocorrência de mastite subclínica em animais da raça Holandesa e a relação entre a contagem de células somáticas com a ordem de lactação e com a produção e a composição química do leite. O estudo foi realizado em propriedades integrantes do programa de controle leiteiro da Associação de Criadores de Gado Holandês de Minas Gerais. As variáveis estudadas foram: ordem de lactação, ocorrência de mastite subclínica, contagem de células somáticas (CCS), produção de leite e porcentagens de gordura e de proteína total. A correlação entre CCS e produção de leite foi negativa e entre CCS e porcentagens de gordura e de proteína, positivas. Animais com maior número de lactações apresentaram maior CCS, e com CCS acima de 100.000 cels/ml menor produção de leite.
The subclinical mastitis occurrence and the relationship between somatic cell count (SCC) with parity, milk yield and milk chemical composition, were studied in Holstein cows. The study was carried out in farms belonging to the milk control program of the Associação de Criadores de Gado Holandês de Minas Gerais. Data on lactation order, subclinical mastitis, SCC, milk production, fat contents and total protein contents were analyzed. There was a negative correlation between SCC and milk production and, correlations between SCC and percentage of fat and protein were positive. Higher lactation order cows showed higher SCC, and cows with SCC higher than 100,000 cels/ml showed less milk production.
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Authors ;R.P.L. Cunha;L.R. Molina;A.U. Carvalho;E.J. Facury Filho;P.M. Ferreira;M.B. Gentilini
Journal Environmental research
Year 2008
DOI
10.1590/S0102-09352008000100003
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100003
Keywords
mastitis dairy cattle somatic cell count

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