The mastitis prevalence in dairy cows in the municipality of Carlinda (Brazil), in the year of 2016

Abstract

Whereas that small producers in the municipality of Carlinda (Brazil) whose main economic activity milk production and also whereas bovine mastitis is shown as one of causes of drop in milk production and impairment of the herd, the aim of this study was to identify the incidence, prevalence and causes of the occurrence of bovine mastitis in the city of Carlinda, northern Mato Grosso State (Brazil). The study was conducted in 8 properties 4 with mechanical milking and 4 with manual milking. It used the CMT (California Mastitis Test). The collected sample was mixed and homogenized with the reagent and read after 10 seconds. The result was rated as negative (0), positive ranging from traces (light gel formation) to weakly positive (+), positive reaction (++) and strong positive reaction (+++).It was observed that 87.5% of the dairy herd that community industry have tested positive for the prevalence of mastitis, being 100% the properties of milking is 75.0% with mechanical milking. From the cows milked by hand, 37.5% were positive in the CMT test and 62.5% negative, and from the cows milked mechanically, 30.0% were positive and 70.0% negative, by the same test. About the sanity in the properties studied, 62.5% of them were considered good hygiene and 37.5% bad. It is important to report that use of pre and post "dipping" was not observed in any property (some do not know the procedures). According to these results can be said that mastitis is present in most dairy herds of the municipality of Carlinda (Brazil) and types of milking did not show interference in the prevalence of subclinical mastitis in the herd.