Prevalence of bovine mastitis, risk factors, isolation and anti-bio gram of major pathogens in Mid Rift valley, Ethiopia

International Journal of Livestock Production Pub Date : 2019-01-31 DOI:10.5897/IJLP2018.0517

Melesse Etifu, Minyahil Tilahun

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引用次数: 5

Abstract

Cross-sectional study design was implemented in Alage dairy farm to determine the overall prevalence of mastitis, its causative agents, susceptibility patterns and risk factors associated with it. A total of 111 milking dairy cows and 444 quarters were examined. Overall prevalence of mastitis at cow and quarter levels were 73 and 37%, respectively. Coagulase negative staphylococci (CNS) (37.7%) followed by Staphylococcus aureus (19.6%), Escherichia coli (9.4%), Staphylococcus intermidius (9.4%), Bacillus species (8%), Streptococcus species (5.8%), Klebsiella pneumoniae (5.8%), and Enterobacter aerogens (4.3%) were isolated in that order of decreasing frequency. From a total of seven antibiotics tested, most isolates were sensitive to Norfloxacin but showed resistance to Ampicillin. Age, stage of lactation, milk yield, hygiene score, feet problems and udder conformation were found to be risk factors significantly (P<0.05) associated with mastitis. The high prevalence rate of mastitis in a relatively well managed dairy farm implied that, it is the trickiest health problem of dairy cows that needs continued and concerted efforts in its fight. Key words: anti-biogram, mastitis, pathogens, prevalence, risk factors.

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埃塞俄比亚中裂谷牛乳腺炎的流行、危险因素、主要病原体的分离和抗生物测定

在Alage奶牛场实施横断面研究设计，以确定乳腺炎的总体患病率、其病原体、易感模式和与之相关的危险因素。共有111头奶牛和444个季度接受了检查。奶牛和四分之一奶牛乳腺炎的总体患病率分别为73%和37%。凝固酶阴性葡萄球菌(CNS)占37.7%，其次是金黄色葡萄球菌(19.6%)、大肠杆菌(9.4%)、中间葡萄球菌(9.4%)、芽孢杆菌(8%)、链球菌(5.8%)、肺炎克雷伯菌(5.8%)和产氧肠杆菌(4.3%)。从总共7种抗生素中，大多数分离株对诺氟沙星敏感，但对氨苄西林耐药。年龄、泌乳阶段、产奶量、卫生评分、足部问题和乳房构象是乳腺炎的危险因素(P<0.05)。在一个管理相对良好的奶牛场，乳房炎的高流行率意味着，这是奶牛最棘手的健康问题，需要持续和一致的努力来解决。关键词:抗菌谱，乳腺炎，病原体，患病率，危险因素。

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International Journal of Livestock Production

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