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Research
5.
Screening of bovine milk samples for sub-clinical
mastitis and antibiogram of bacterial isolates -
H Harini, B R Sumathi
Vet World. 2011; 4(8): 358-359
doi: 10.5455/vetworld.2011.358-359
Abstract
The study
was undertaken to find out the incidence of
subclinical mastitis (SCM) and to assess the
antibiotic sensitivity pattern of the causative
organisms in lactating cows in and around
Kanakapura taluk, Ramanagara district of Karnataka
state. The prevalence of subclinical mastitis was
assessed by the results of 3 different screening
tests and bacteriological evaluation was done for
the milk samples that were found positive. The
predominant bacterial isolates recovered were
Staphylococcus aureus (58%) and Escherichia coli
(23.5%) followed by Staphylococcus epidermidis
(8%), Streptococcus sp. (5.5%), Klebsiella sp.
(3%) and Bacillus sp. (2%). The in vitro
antibiogram studies of bacterial isolates revealed
higher sensitivity for ciprofloxacin (89%),
ofloxacin (85%), enrofloxacin (82%), gentamicin
(80%) and chloramphenicol (75%), resistant to
colistin, neomycin, streptomycin, penicillin and
tetracycline.
Keywords: Subclinical, Screening, Antibiotic
sensitivity and Prevalence.
