National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
An investigation was conducted on subclinical mastitis at State University dairy farm, Mansbal in which 100 lactating Jersey cross bred cows were taken in to study. The animals showing clinical signs of mastitis were excluded from the study. Californian Mastitis test (CMT) and somatic cell count (SCC) were used for preliminary screening of animals for subclinical mastitis. Prevalence of subclinical mastitis on the basis of CMT was 52% while as the prevalence on the basis of SCC was 49%. On culture examination 45% was per cent prevalence of subclinical mastitis. The major mastitides isolated were Staphylococci, Streptococci and E.coli whereas the minor pathogens incriminated in mastitis were Diplococcus, Corynebacterium, Pseudomonas, Micrococcus and Bacillus species. Out of which staphylococcus spp. was 42.2%, Streptococcus spp. was 11.1%, Escherichia coli was 6.6%, Diplococcus spp. 2.2%, Corynebacteriumspp.2.2%, Pseudomonasspp. 2.2%, mixed Staphylococcus and Streptococcus 22.2%, Gram negative but not Escherichia coli, 4.4% Micrococcus 2.22% and Bacillus species was 4.44%. Out of staphylococcal, 73.68% were coagulase negative while as coagulase positive were 26.31%.Out of streptococci, 60% were alpha haemolytic, 20% were beta haemolytic while as 20% were gamma haemolytic.
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