National Academy of Agricultural Sciences (NAAS)
|
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 |
A total of 200 quarter milk samples from 50 apparently healthy cows of different parity were examined by California Mastitis test and cultural examination. Milk samples also subjected for Changes in composition Viz. fat, protein and lactose. The prevalence of subclinical mastitis based on culture examination was 30(60/200) and 36 per cent (72/200) based on CMT and Culture examination on quarter basis. The prevalence of subclinical mastitis on animal basis was 40 (20/50) and 46 per cent (23/50) based on CMT, and Culture examination. Highest prevalence was observed in IVth parity on quarter basis and in Vth parity on cow basis. On culture examination, Staphylococcus aureus was the most prevalent organism (50.56%), followed by Streptococcus dysaglactiae (11.33%), E.coli (7.8 %), Staphylococcus agalactiae (13.48 %), Staphylococcus epidermidis (2.2 %), Streptococcus hyicus (6.94 %), Streptococcus uberis (5.16%), Klebsiella pneumonia (6.74 %). On isolation by bacterial mPCR, Staphylococcus spp. (42 %) was the major pathogen. Organisms isolated in mixed infections are Streptococcus spp., Klebsiella pneumonia, E.coli and Psudomonas aerugenosa. The average mean value of fat, protein and lactose content in subclinically affected milk samples were 3.40±0.101, 3.009±0.033 and 4.48±0.03 and the mean value of fat, protein and lactose content in normal milk were 4.13±0.035, 3.39±0.021 and 5.10±0.016.
Citations |
 |
 |
 |
 |
