Abstract: [Objective and Method]According to the DHI test records of Somatic cell counts of Tianshan Pasturage Changji Bio-engineering Co. Ltd cattle farm of Holstein and Xinjiang brown including 16 months,the species, the calving season, the parity and different months in 2006-2009 years were analyzed.[Result]The results showed that the species,the parity and different months affected SCC significantly (P<0.01), effect of the calving season was not significant (P>0.05).Results indicated that Holstein SCC increased when the parity of lactation increased. [Conclusion]For same TMR feeding style, comparative analysis of somatic cell counts in the milk of Holstein and Xinjiang brown in the each effect complication, Holstein somatic cell counts are always higher than that of the Xinjiang browns.

摘要： [目的]提高奶产量和奶牛品质.[方法]通过对荷斯坦牛与新疆褐牛16个月(2006～2009)的DHI记录资料从品种、产犊季节、产犊胎次和不同月份对体细胞数(SCC)的影响进行分析.[结果]品种、产犊胎次和不同月份对SCC影响显著(P<0.05),产犊季节对SCC影响不显著(P>0.05),荷斯坦牛SCC随着胎次的增加有升高的趋势.[结论]在同一TMR饲养方式下,荷斯坦牛和新疆褐牛牛奶体细胞数在各影响因素下对比分析,荷斯坦牛牛奶体细胞数高于新疆褐牛.