本试验以随机采集的奶牛乳样为研究对象，对乳样的电导率与体细胞数进行了测定与分析。结果显示，体细胞在2105/mL ~5105/mL区间时，奶牛乳汁电导率值在0.40~0.55 mho/m之间；体细胞在5.0105/mL以上时，奶牛乳汁电导率0.6 mho/m以上。结果表明，牛乳电导率的变化与体细胞的含量呈正相关，可利用牛乳体细胞数与电导率变化的相关关系来准确判断奶牛是否有隐性乳房炎。

Electric conductivity and SCC of the randomly collected cow milk samples were determined and analyzed in this paper. As a result, the content of SCC ranged from 2105/ml to 5105/ml while electric conductivity were 0.40 mho/m~0.55 mho/m. When SCC was >5105/ml, electric conductivity was>0.60mho/m. The results revealed that there were positive correlation between electric conductivity and SCC, which can be used for accurately diagnoseing subclinical mastitis of cow.