Prevalence and Haematobiochemical Profile of Resistant Mastitis in Dairy Cows in and around Salem District, Tamil Nadu

Abstract

This study investigated the prevalence and characteristics of clinical mastitis in dairy cows, revealing a 13.17% prevalence rate. Jersey crossbred cows were found to be most susceptible, accounting for 85.23% of resistance mastitis cases, particularly those with parity 4-5 (51.70%). The incidence of mastitis showed seasonal variation, peaking during the rainy season with 35.23% of cases. The Left Front quarter was the most frequently affected (36.93%), and most cases occurred during the first 3 months of lactation (62.50%). Mastitis-affected cows showed significant haematological changes, with improvements observed after treatment. Notably, various haematological and biochemical parameters returned to near-normal levels post-treatment, indicating effective management of the condition. These findings highlight the importance of targeted management strategies to prevent and control mastitis in dairy cows.