Vol. 10, Special Issue 11 (2021)

Author(s):
Amol Jagannath Talokar, Bharat Bhushan, Kaiho Kaisa, Manjit Panigrahi, Gyanendra Kumar Gaur and Triveni Dutt

Abstract:
The study was carried to evaluate the prevalence rate per lactation (PRL) and lactation incidence risk (LIR) of clinical mastitis (CM) in the Vrindavani herd. The data contains 7683 calving of 2528 cows over a 32-year period (1989-2020). The overall PRL and LIR on the farm was 27.68% and 40.26%, respectively. Higher PRL (36.06%) in fifth lactation and LIR (54.26%) in six lactation were found. Recent period (2017-2020) reported highest PRL (36.66%) and LIR (61.89%) in this herd. Rainy season had higher PRL (29.32%) and LIR (43.22%) than other seasons. The results of this investigation showed that CM occurred most often in the multiparous old cows. Recent period and rainy season showed more CM prevalence because of the favourable environment for pathogens to grow and spread in the herd. Thus, to reduce the CM occurrence, more thrust needs to be paid on older cows and those, which calved in rainy season.