数字农科院2.0

Prevalence And Risk Factors Of S.ubclinical Mastitis In Lactating C ows In Northwest China

文献类型： 外文期刊

作者： Zhou, X. Z.;Yang, F.;Wei, X. J.;Wang, L.;Luo, Y. J.;Guo, Z. T.;Guo, W. Z.

作者机构：

关键词： Subclinical Mastitis; Risk Factors; California Mastitis Test; Lactating Cows

期刊名称： ISRAEL JOURNAL OF VETERINARY MEDICINE

ISSN： 0334-9152

年卷期： 2019 年 74 卷 1 期

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摘要： The aim of this study was to investigate the prevalence and risk factors of subclinical mastitis (SCM) in lactating cows in northwest China. A total of 1,590 lactating cows from 38 different-scale dairy farms located in Gansu province and Ningxia Hui autonomous region were selected for this study. SCM was confirmed by California Mastitis Test. Cow-level risk factors including age, parity, lactation stage, milk yield, clinical mastitis history, teat damage, hygienic-sanitary quality, milking method and season were identified through univariate analysis and multivariate analysis using SPSS 19.0. In the two regions, the prevalence of SCM was 25.92% at cow level and 16.40% at quarter level. On large-, medium- and small-scale dairy farms, the SCM incidence was 21.46%, 26.74% and 33.16%, respectively. Among the potential risk factors, parity, lactation stage, clinical mastitis history and teat damage significantly influenced the occurrence of SCM (P<0.01) at cow level. This study indicated high-level prevalence of SCM and identified four risk factors for SCM which can be addressed by practical management of dairy cows for the local farms.

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