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Etio-Prevalence of Environmental Bacterial Species Causing Subclinical Mastitis in a Cohort of Buffaloes at Khyber Pakhtunkhwa

Etio-Prevalence of Environmental Bacterial Species Causing Subclinical Mastitis in a Cohort of Buffaloes at Khyber Pakhtunkhwa

Abdul Kabir1, Laiba Uroog2*, Naushad Ahmad3, Fawad Ahmad3, Muhammad Saqib3, Noor Badshah4 and Taj Ali Khan3 

1Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam Pakistan; 2Animal Microbiology and Immunology laboratory, Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan; 3Institute of Biotechnology and Genetic Engineering, University of Agriculture, Peshawar; 4Department of Molecular Biology and Genetics, Khyber Medical University Peshawar, Khyber Pakhtunkhwa, Pakistan. 


Subclinical mastitis is multifactorial inflammation of mammary glands in dairy animals, resulting in changes in milk quality, milk production, and economic losses to dairy farmers. It mainly occurs due to non-contagious environmental bacterial species. In Pakistan, it is the major disease of different dairy animals including bovines. However, only a little information is available about bacterial profile of the disease. A cross-sectional study was conducted to find the Etio-prevalence of bacterial species causing subclinical mastitis in a cohort of buffaloes at Khyber Pakhtunkhwa. 120 quarter samples were collected from suspected buffaloes in selected areas of Peshawar, Charsadda, Mohmand Agency, and Dara Adam Khel. Initially, California Mastitis Test was performed for screening of positive samples. Afterward, the bacterial profile was confirmed through biochemical testing. The quarter wise prevalence of subclinical mastitis was 25%. Within this, contribution of Gram-negative bacteria was 68% and that of Gram-positive bacteria was 32%. Among 30 positive samples, percentage prevalence of different bacterial species was: E.coli (37%), S. aureus (23%), Pseudomonas (20%), Streptococcus (10%), Proteus (7%) and Salmonella (3%). The study reported high percentage of E. coli in cases of subclinical mastitis. It may be due to transfer of pathogen from cow to buffaloes and from the environment in herds of mixed farming. The study results may be helpful in developing the strategic policies against the control of disease. 


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Veterinary Sciences: Research and Reviews


Vol. 7, Iss. 1, Pages 1-91


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