Studies on Early Detection of Sub Clinical Mastitis and Its Antibiogram in Lactating Dairy Cattle

P. Revathi; M. Vijaya Bharathi; A. Elango; Mitali Inder  Bhambhani; B. Nagarajan; D. Bala Subramanyam

doi:10.5455/ijlr.20200528110737

Authors

P. Revathi Ph. D. scholar, Department of Veterinary Preventive Medicine, Madras Veterinary College, Chennai, INDIA https://orcid.org/0000-0002-4827-9675
M. Vijaya Bharathi Associate Professor, Post Graduate Research Institute in Animal Sciences, Kattupakkam, INDIA
A. Elango Professor, Post Graduate Research Institute in Animal Sciences, Kattupakkam, Kancheepuram District, INDIA
Mitali Inder Bhambhani M. V. Sc. Scholar, Department of Veterinary Preventive Medicine, Madras Veterinary College, Chennai, INDIA
B. Nagarajan Professor & Head, Dept. of Veterinary Preventive Medicine, Madras Veterinary College, Chennai, INDIA
D. Bala Subramanyam Professor & Head, Post Graduate Research Institute in Animal Sciences, Kattupakkam, Kancheepuram, INDIA

DOI:

https://doi.org/10.5455/ijlr.20200528110737

Keywords:

Antibiogram, Subclinical mastitis, TANUCHEK Somatic cell count test

Abstract

A study was conducted in an organized farm to know the prevalence status of subclinical mastitis. Screening of animals for subclinical cases was done by using TANUCHEK-SCC kit developed by TRPVB, TANUVAS Chennai. A total of 167 quarters from 46 lactating dairy cattle were screened for mastitis. Out of these, 42 samples were found positive for subclinical mastitis and none of the samples were found positive for clinical mastitis with visible changes. The positive samples for subclinical mastitis were further subjected for invitro antibiotic sensitivity test using antibiotic discs like ceftizoxime, amoxicillin/ sulbactam, ceftriaxone, enrofloxacin, cefalexin, gentamicin and cefoperazone/ tazobactum. Antibiogram studies revealed enrofloxacin (100 per cent) is the most sensitive drug followed by gentamicin (97.6 per cent), amoxicillin/ sulbactam (90.4 per cent), cefalexin (76.2 per cent), ceftriaxone (59.5 per cent), cefoperazone/ tazobactum (38.1 per cent) and ceftizoxime (35.7 per cent). In the study, Enrofloxacin was the sensitive antibiotic found against subclinical cases.