author(s)
Pankaj Kumar, Anand Prakash, Dinesh Mittal, Ramesh Kumar and Naresh Jindal

abstract
In this Study a total of 378 milk samples (100 from cows and 278 from buffaloes) were screened for mastitis first with california mastitis Test (CMT) and then cultural sensitivity test (CST) was performed on all the positive samples from different villages of Rohtak Districts of Haryana throughout the year. Data was analysed and overall animal season wise prevalence of mastitis was observed. Higher prevalence was observed in summer season in cows (32%) and in rainy season in buffaloes (30.21%) followed by winter season in cows and buffaloes respectively (28%) and (29.85%). Antibiogram was also performed on all the samples and Enrofloxacin (87.30%) was found to be most sensitive antibiotic followed by Ceftriaxone (83.59%) and Gentamicin (83.33%).