Mastitis Pathogens and their Antibiogram-A Study of 4387 Bovine Samples Sharma Anshu*, Mittal D., Singh M. College Central Laboratory, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar-125004, Haryana *Corresponding author E-mail: anshusharma_dr@yahoo.com
Online published on 2 April, 2016. Abstract A total of 8125 quarter milk samples from 2376 cows and buffaloes were subjected to bacteriological examination of which 4387 (53.99%) samples were found culturally positive. Both in cows and buffaloes, sub-clinical mastitis was found more prevalent than clinical form. Out of 4772 isolates obtained from infected quarters of cows and buffaloes, 60.05% were Staphylococcus spp., 22.96% were Streptococcus spp., 11.92% were E. coli, 1.76% were Diplococci, 1.47% were C. pyogenes, 0.34% were Klebsiella spp., 0.46% were Pseudomonas aeruginosa, 0.57% were Bacillus spp., 0.40% were Pasteurella multocida and 0.06% were fungi like yeast. As many as 8.7% quarters revealed mixed infections in different combinations. Most prevalent combination of isolates was Staphylococcus spp. + Streptococcus spp. In case of buffaloes while considering overall pattern, all Gram positive bacteria showed high sensitivity towards Chloramphenicol (90.67–100%) and Cefoperazone (77.37–92.30%). Almost similar sensitivity pattern was observed in cows except that cow isolates showed high sensitivity towards Ceftriaxone. Variation in antibiogram was observed in E.coli isolates. Top Keywords Antibiogram, mastitis, pathogen. Top |