Clinical Mastitis in Different Breeds of Cattle and Buffaloes at Chitwan, Nepal

Abstract

Two hundred fifty cattle with 620 quarters and 212 buffaloes with 493 quarters were examined for clinical mastitis (CM). Coliform was the most frequently isolated organism followed by Staphylococcus in all breeds of cattle and buffaloes. In cattle, 56% animal with 35% quarters and 44% buffaloes with 27% quarters were found positive for CM. Holstein Friesian cross (65%) and local buffaloes (52%) were found the most susceptible with CM among the breeds of cattle and buffaloes, respectively. Breed wise and quarter wise susceptibility with CM were found non-significant among breeds of cattle and buffaloes. The infection with CM was common at monsoon season followed by summer in breeds of cattle. Similarly, the infection with CM was common at monsoon season followed by winter season in breeds of buffaloes. This study revealed that most of the breeds of cattle were found susceptible to CM at 2nd calving while breeds of buffaloes were affected at 1st calving. Infection with CM was the highest within the first month of lactation in both of the species. Antibiogram revealed that majority of the isolates were most sensitive to Gentamycin followed by Chloramphenicol, Tetracycline and Ampicillin.

J. Inst. Agric. Anim. Sci. 23:65-69