Occurrence of clinical and subclinical mastitis in dairy cattle of the Goiano Federal Institute, Ceres Campus

Abstract

This study aimed to survey the occurrence of clinical and subclinical mastitis in the dairy cattle at the Goiano Federal Institute, Ceres Campus, Campus Ceres, as well as analyze the risk factors related to its occurrence. The
work was carried out from April to June 2022. Black bottom mug and CMT tests were carried out on 22 lactating Girolanda cows every 15 days. The prevalence of clinical mastitis in herds was 2.6% and subclinical mastitis was
46.2%, with 14.5% for the mild score, 10.8% for the moderate score, and 20.9% for the severe score. Regarding the evolution of mastitis during the period, an increase in the CMT Test score 0 (absence of mastitis) was observed over time until the penultimate collection, while the severe CMT score showed a reduction in its prevalence throughout the periods. collections. These results may be associated with the adoption of milking line practice and post-dipping, hygienic-sanitary measures that were not previously implemented. Thus, a high frequency of mastitis was found in the dairy herd evaluated, mainly in the subclinical form, indicating that failures in the hygienicsanitary management of milking must be corrected to prevent and control the disease.