Vol. 10, Special Issue 7 (2021)

Author(s):
T Surya, R Selvarani, Narendra P Singh, Subrata Koloi, M Mohan and Sunil Kumar Mohapatra

Abstract:
The majority of mastitis pathogens are bacterial in origin and just a few species of bacteria such as E. coli, Staphylococcus aureus, Streptococcus uberis, Streptococcus dysgalactiae and Streptococcus agalactiae account for most cases. Season is the major factor which influences the animal health and makes them susceptible to the infection. In summer coliform mastitis is more prevalent because of summer temperature and humidity which increase the coliform counts. In this study, Sahiwal and Karan Fries cows were screened for mastitis from the herd maintained at Livestock Research Centre (LRC) of NDRI, Karnal, Haryana. The milk samples of these mastitic cows were mostly found positive for S. aureus (in Sahiwal 83.33%, in Karan Fries 91.66%) compared to E. coli (in Sahiwal 16.67%, in Karan Fries 8.33%) which significantly could be used in treating the animals and further study can be carried to analyse the mode of infection.