Vol. 12, Special Issue 8 (2023)

Author(s):
Pramod KS, M Narayana Bhat, Ramesh PT and Paramesha SC

Abstract:
The present study was undertaken to find out the presence of Subclinical mastitis (SCM) in pooled samples collected from milking dairy cattle and to track the SCM cases in individual herds of selected villages. Further, the antimicrobial resistance pattern of the bacteria associated with subclinical mastitis of dairy cattle were studied. Out of 1330 pooled milk samples screened for SCM, 101 household samples were positive for SCM by California mastitis test (CMT) with overall prevalence of 7.59 per cent. Later the 101 positive samples were tracked back to individual households and all the animals in the herd were screened for SCM by CMT. Out of 413 animals screened for SCM, 127 (30.75%) animals were found positive. Positive samples were subjected to Antibiotic Sensitivity test (ABST). Milk samples were highly sensitive to Ceftriaxone and least sensitive to Penicillin-G.