Abstract

A cross section study was carried out from June 2013 to May 2014 on a total of 110 lactating cows of rural, peri-urban and suburban regions of Jaipur District of state of Rajasthan, for sub clinical mastitis by using California Mastitis Test (CMT), White side test (WST), Surf Field Mastitis Test (SFMT) and Somatic cell count (SCC). Prevalence of subclinical bovine mastitis in animal level was recorded as 67.27, 64.55, 63.64 and 74.55% by CMT, WST, SFMT and SCC, respectively whereas 39.55, 38.86, 37.95 and 45.23% by CMT, WST, SFMT and SCC, respectively in the level of quarters. Staphylococcus species (46.3%) occupied the prime position among the bacterial isolates followed by Streptococcus species (9.76%), Escherichia coli (6.1%), mixed growth (32.96%) and sterile growth (4.88%). Antibiotic susceptibility test revealed highest sensitivity towards Enrofloxacin. However, antibiotics showing higher rate of resistance patterns were Streptomycin, Penicillin G, Ampicillin, Cloxacillin, Amoxicillin, Kanamycin and Lincomycin. This reflects the poor quality of milk available to the consumers, lack of adequate hygienic practices, pre-emptive prophylactic regimen and indiscriminate use of antimicrobials.

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