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| Costa,H.N.; Lage,C.F.A.; Malacco,V.M.R.; Belli,A.L.; Carvalho,A.U.; Facury,E.J.; Molina,L.R.. |
| ABSTRACT The aim of this study was to evaluate the frequency of isolation of agents causing subclinical mastitis in a herd and to estimate production losses associated with SCC> 200,000cells/mL. Three 7-day interval microbiological cultures were performed in all lactating animals from the same farm that was evaluated from June to July. To evaluate the negative and positive isolation frequencies between the lactation phases, a Chi-square test was performed. Simple linear regressions were performed to evaluate the lactation curve of animals grouped by pathogens isolated from negative cows in the microbiological culture and with SCC <200,000cells/mL. To estimate the production losses between the groups, regression coefficients were used. Results found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Subclinical mastitis; Environmental; Contagious; Milk quality. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200393 |
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