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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (6): 21-24.

所属专题： 生物技术； 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

不同DCAD水平对采食后崂山奶山羊瘤胃pH、NH3-N及酶活性变化的影响

王利华,冯 强   

  • 收稿日期:2008-12-01 修回日期:2009-02-04 出版日期:2009-03-20 发布日期:2009-03-20

Effects of different dietary cation-anion difference on ruminal pH, NH3-N and enzyme activity of Laoshan dairy goats

  • Received:2008-12-01 Revised:2009-02-04 Online:2009-03-20 Published:2009-03-20

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摘要： 本试验采用4×4拉丁方设计研究日粮中不同DCAD值对崂山奶山羊瘤胃pH、NH3-N及瘤胃酶活性的影响。日粮的DCAD值分别为0、50、100、200mEq/kgDM。从各采样点的平均值可以看出，日粮DCAD值对瘤胃氨态氮浓度、瘤胃pH、纤维素酶活性有显著影响(P<0.05)，对α-淀粉酶活性、中性蛋白酶活性无显著影响(P>0.05)。综合不同指标测定结果，可推断100 mEq/kg DM的DCAD值对非哺乳妊娠的成年崂山奶山羊较适宜。

关键词: 风景园林, 风景园林, 观光农业, 开发规划, 九鼎山

Abstract: The present experiment was conducted to determine effects of different DCAD in diets on ruminal fluid pH, protein degradation and activity of three kinds of digestion enzyme in rumen of Laoshan dairy goats. A 4×4 latin square design was adopted in this experiment. DCAD in different groups was 0、50、100、200mEq/kgDM, respectively. The means of different sampling points showed that DCAD of diet could could significantly influence the ruminal pH, content of NH3-N and activity of carboxymethyl cellulase (P<0.05) , and there was no effects of DCAD on activity of α-amylase and neutralprotease(P>0.05).It could be concluded from results that the DCAD of 100mEq/kgDM was advantaged to non-pregnancy, non-lactication Laoshan dairy goat.