Year: 2021 | Month: February | Volume 11 | Issue 1

Prevalence of Sub-clinical Mastitis in Dairy Cow of Rewa District of Madhya Pradesh

Komal Singh Krishan Kumar Mishra Neeraj Shrivastava Amit Kumar Jha Rajeev Ranjan
DOI:10.30954/2277-940X.01.2021.11

Abstract:

Among myriads of factors causing huge loss to the dairy industry, mastitis occupies major cause of concern. Sub-clinical mastitis (SCM) is an inflammation of udder without any visible changes in the udder and milk. In this study, 242 no. of cows were screened by modified California Mastitis Test (mCMT), milk pH, electrical resistance (ER) and somatic cell count (SCC). Apparently healthy cows had the mean value of milk pH, ER, and SCC was 6.57±0.04, 356.67±13.33 and 1.52±0.12×105 cells/ ml, respectively, while the corresponding values in SCM infected cows were 7.55±0.04, 315.00±19.45 and 17.22±3.12×105 cells/ml. The overall prevalence of SCM infected cow was found to be 31.40% on animal wise, 7.85% on quarter wise, and 2.48% on blind teat wise. The individual quarter wise prevalence was found to be highest in left hind quarter (15.70%) and left fore quarter (5.78%), while lowest in right hind quarter (5.37%) and right fore quarter (4.54%). The prevalence of SCM in relation to stage of lactation in cows revealed highest (36.54%) in early stage of lactation followed by late (34.38%) and mid (27.78%) stages of lactation. The variable prevalence of SCM was observed at different stage of parity. The highest prevalence was observed at 2nd parity (66.67%) followed by 1st parity (43.33%), 4th parity (40.75%), 3rd parity (30.00%), 5th parity (19.44%), 6th parity (13.04%) and lowest at 7th and above parity (8.57%). Losses incurred due to mastitis can be minimized by improving management and milking practices.

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