Análise da qualidade sanitária do leite cru em duas propriedades rurais do município de Corrente-Piauí

Abstract

This study aimed to evaluate the sanitary quality of raw milk produced in two rural properties located in Corrente-PI, considering the prevalence of clinical and subclinical mastitis and the influence of different milking methods. The research was conducted with 20 lactating cows, with samples collected every fifteen days over four months. The strip cup test was applied to detect clinical mastitis, and the California Mastitis Test (CMT) was used to identify subclinical mastitis. The data obtained were subjected to statistical analysis, including ANOVA, Tukey test, Chi-square test, and Fisher’s Exact Test. The results showed clear differences between the milking systems: Property A, which uses manual milking, presented lower mastitis prevalence and greater consistency in diagnostic tests, indicating better sanitary control. In contrast, Property B, which uses mechanical milking, showed higher mastitis prevalence and greater variability among collections, suggesting issues related to hygiene, equipment maintenance, and management. The study highlights that, regardless of the milking method, strict adoption of good hygiene practices, proper equipment maintenance, and worker training is essential to ensure milk quality and reduce mastitis occurrence. The findings reinforce the need for specific adjustments in properties using mechanical milking and emphasize the importance of regional research to support improvement strategies for dairy production in the extreme south of Piauí.