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The prevalence of heifer mastitis and its associated risk factors in Huanggang, Central China
- 作者：Feng Li Yang ; Chen Shen ; Bao Xiang He…
- 关键词：Primiparous cows ; Mastitis ; Major pathogens ; Risk factor
- 刊名：Tropical Animal Health and Production
- 出版年：2015
- 出版时间：January 2015
- 年：2015
- 卷：47
- 期：1
- 页码：87-92
- 全文大小：153 KB
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16. Lakew, M., Tolosa, T., and Tigre, W., 2009. Prevalence and major bacterial causes of bovine mastitis in Asella, South Eastern Ethiopia, Tropical Animal Health and Production, 41, 1525-530. - 刊物类别：Medicine
- 刊物主题：Medicine & Public Health
Veterinary medicine
Zoology
- 出版者：Springer Netherlands
- ISSN：1573-7438
文摘
The purposes of this study were to determine the prevalence of heifer clinical mastitis (HCM) and heifer subclinical mastitis (HSCM), isolate HCM-causing bacteria, and assess the association of some risk factors in Huanggang, Central China. A total of 1,374 lactating heifers from three dairy farms were examined in the present study; 22.64?% of heifers were positive for mastitis, out of which, 3.86 and 18.78?% were with HCM and HSCM, respectively. Of the 67 HCM samples, 91.05?% were single growth, 7.46?% mixed growth, and 1.49?% no bacterial growth. Coagulase-negative staphylococci (CNS) accounted for 30.98?% of the isolates followed by Escherichia coli (29.58?%), Staphylococcus aureus (16.9?%), and Streptococcus uberis (11.27?%). Logistic regression analyses showed that heifer milk yield lower than 3?L had the highest prevalence of HCM compared to heifer milk yield of more than 3?L (P--.01), and prevalence of HCM was significantly high in heifers with the presence of teat lesions (P--.01). Moreover, the heifer milk yield lower than 3?L had the highest prevalence of HSCM compared to heifer milk yield of more than 3?L (P--.01). These two factors were significantly associated with the occurrence of heifer mastitis, which needs to be considered in the prevention and control strategies of the disease.
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