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Study on Positive Rate and Regularity of Milking Cow Mammitis of Milk Cow Dairy in Beijing Area

Wu Guojuan Zhang Zhongwen Liu Fenghua Sheng Hong Kong Gang (Beijing Agricultural Collage,Beijing 102206)  
The Milk cow mastitis has been tested to Beijing area 4 milk cow dairy in this experiment.The body cell meter method,4% NaOH method and CMT method were used in the study.The results indicated that the positive Rate of Subclinical mastitis is 47.22%,the positive Rate of Clinical mastitis is 4.86%,and the positive Rate of mammary region is 44.44%.
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