Abstract
Among 190 milk samples confirmed positive for bovine mastitis by California mastitis test, Somatic cell count and White side test. Among 190 samples, 138 (72.63 %) samples. Staphylococcus aureus (27.37%) was found to be the most prevalent organism followed by coagulase negative Staphylococcus spp. (12.63%), E. coli. (08.95%), Pseudomonas spp. (07.89%), Streptococcus spp. (05.79%), mixed bacterial infection (04.74%), yeast (03.15%), Klebsiella spp. (01.57%) and Bacillus spp. (00.52%). Further, the incidence of bovine mastitis was recorded under different climatic conditions, which was found to be highest in winter followed by summer and least in rainy season. Additionally, it was observed that Gram positive organisms were more common cause of bovine mastitis than Gram negative and Staphylococcus aureus was most common isolate in all the seasons. Incidence of bovine mastitis has been also recorded under different climatic conditions. However, Streptococcus spp. showed a significant rise in incidence during summer. Our results revealed that there was a definite impact of seasonal variation on incidence of bovine mastitis and the microbe associated with it.
Highlights
Mastitis is inflammation of parenchyma of mammary gland characterized by physical, chemical and usually bacteriological changes in milk and pathological changes in glandular tissues (Radostits et al, 2000)
Annual losses in the dairy industry due mastitis was approximately 2 billion dollar in USA and 526 million dollars in India, in subclinical mastitis and clinical mastitis are responsible for approximately 70% and 30% respectively of dollars losses (Varshney et al, 2004)
Incidence of bovine mastitis was studied and an effort has been made to correlate the incidence of mastitis with climatic conditions
Summary
Mastitis is inflammation of parenchyma of mammary gland characterized by physical, chemical and usually bacteriological changes in milk and pathological changes in glandular tissues (Radostits et al, 2000). Summer Vs Rainy infection 9 (04.74%), yeast (03.15%), Klebsiella spp. The incidence of streptococcal mastitis in the present study was found to be lower than E. coli and Pseudomonas mastitis. Incidence of E. coli mastitis was quite high and it superseded streptococcal mastitis.
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