Prevalence of subclinical mastitis in cattle in Bikaner

Abstract

The present study was conducted on 472 quarter milk samples from 120 apparently healthy lactating cows to determine the quarter, parity and lactation stage-wise prevalence of sub-clinical mastitis in cattle based on the modified California mastitis test (MCMT). The animal and overall quarter-wise prevalence of subclinical mastitis were 37.16 percent and 22.03 percent, respectively. The quarter type-wise highest prevalence of SCM was found in right hind quarters (32.76%), followed by left hind quarters (23.52%), right fore quarters (19.65%) and least prevalence was recorded in left fore quarters (12.50%). The parity-wise highest prevalence of SCM was noticed in IVth parity followed by IIIrd, Vth, VIth, VIIth and above, IInd and least in Ist parity. Whereas, lactation stage-wise, the highest prevalence of SCM was recorded in early lactating stage 25 (43.86%) followed by mid-lactating stage 17(36.20%) and least in late lactating stage 03 (18.75%) by modified California mastitis test.