Fatores epidemiológicos associados à mastite bovina em um projeto de assentamento localizado no município de Paragominas, região sudeste do estado do Pará.

Abstract

The aim of this study was to investigate the epidemiological factors associated with bovine mastitis in the New Jerusalem community belonging to the Luis Inácio settlement project in Paragominas, in the southeastern region of the state of Pará. A total of 193 lactating dairy cows belonging to 16 different lactation stages were examined, kept in an extensive rearing system and submitted to daily milk withdrawal by manual milking. The clinical examination of the mammary gland, the screened cup test and the CaliforniaMastitis Test were performed. In 772 mammary rooms evaluated, 0.3% presented clinical mastitis, 7.5% presented subclinical mastitis and 92.2% were negative. Mastitis was diagnosed in most of the herds surveyed. Even with the lack of hygiene on the premises during milking and the non-use of control and prevention measures, the number of animals affected was considered low. The diagnosis of mastitis in a few animals in this study is probably due to its phenotypic characteristics. Even with the lack of hygiene on the premises during milking and the non-use of control and prevention measures, the number of animals affected was considered low. The diagnosis of mastitis in a few animals in this study is probably due to its phenotypic characteristics. The analysis of the epidemiological factors associated to preventive measures is of great importance for the reduction of this disease and consequently a greater profitability.