甘肃天祝白牦牛与甘南牦牛乳中水解酶活性的比较

Comparison on the Activity of Hydrolase in the Milk of Tianzhu White Yak and Gannan Yak of Gansu

[目的]对甘肃天祝白牦牛与甘南牦牛乳中水解酶活性进行比较。[方法]测定并比较甘肃天祝白牦牛和甘南牦牛乳中水解酶(ACP、AKP、AMS)的活性,并比较同一品种不同胎次牦牛乳中水解酶的活性。[结果]天祝白牦牛乳中ACP活性显著高于甘南牦牛(P<0.05);天祝白牦牛乳中AKP活性高于甘南牦牛,但差异不显著(P>0.05);天祝白牦牛乳中AMS活性低于甘南牦牛,但差异不显著(P>0.05)。不同胎次牦牛乳中3种水解酶活性均无显著差异(P>0.05),说明胎次对牦牛乳中水解酶活性的影响不显著。[结论]该研究结果可为牦牛乳的进一步开发利用提供参考。

[ Objective ] To compare the activity of hydrolase in the milk of Tianzhu white yak and Gannan yak of Gansu. [ Method ] The activities of hydrolase（ ACP, AKP, AMS） in the milk of Tianzhu white yak and Gannan yak milk of Gansu were determined and compared. And the activities of hydrolase in the milk among different parity of yak were compared. [ Result] ACP activity in the milk of Tianzhu white yak was significantly higher than that of Gannan yak （ P 〈 0.05 ）. AKP activity in the milk of Tianzhu white yak was higher than that of Gannan yak, but there was no significant difference （P 〉 0.05 ）. AMS activity in the milk of Tianzhu white yak was lower than that of Gannan yak, but there was no significant difference （ P 〉 0.05 ）. The activity of hydrolases in the milk of different parity of yak had no significant difference （P 〉0.05）, which indicated the effects of different parity on the activity of hydrolases in the yak milk were not significant. [ Conclusion] The research can provide reference for further development and utilization of yak milk.