Correlação entre mastite em vacas leiteiras, escore de tetos, úbere, e variações climáticas no município de Santo Antônio do Sudoeste

Abstract

Mastitis is the most important disease in dairy herds, for determining decrease in quantity and quality of milk produced. The objective of the study was to correlate the teat scores (cleaning and changes/lesions) and udder cleaning scores, flanks and hocks of animals with the incidence of clinical and Subclinical Mastitis in dairy cows in the municipality of Santo Antônio do Sudoeste- PR. Samples were carried out monthly data for the period from September to March 2014/2015/. Monthly analyses were carried out: black background Mug test for diagnosis of clinical mastitis, CMT (California Mastitis Test) for subclinical. Temperature and rainfall averages were obtained by the water Institute of Paraná. As a result there was an average of 1.62% of animals showing clinical mastitis, and 64.93% Subclinical Mastitis. About dirt, 308 were evaluated and theseudders 75.32% (232/308) udders obtained score 1 (clean), 13.31% (41/308) 2 score (slightly dirty), 5.19% (16/308) score 3 (moderately dirty) and 6.16% (19/308) 4 score (very dirty). 1,232 teat sphincter were evaluated, following the score, 40.42% (498/1,232) sphincters presented 1 score (no change), 19.23% (334/1,232) score 2 (mild and soft texture), 11.69% (203/1,232) 3 score (visible changes and texture) and 15.99% (197/1232) score 4 (amendments). It was concluded that there was no relationship between climatic variations (temperature and rainfall), score of dirt of udder and eversion score of ceiling sphincter with the occurrence of clinical mastitis (test of the mug) and subclinical (CMT).