Abstract: [Objective amd Method]This research was conducted to study the effects of adding sodium fumaric acid (SFA) on digestion and metabolism of sheep. Eighteen male China merino(Xinjiang type) sheep were selected and randomly divided into three groups, 6 sheep in each group. 10 g and 20 g of sodium fumaric acid were added to the diet of groupⅡand group Ⅲ, respectively. [Result]The results showed that the DM intake and the amount of the digestible OM, CP, cellulose, semi-cellulose in control group was 1414.05±59.71, 917.89±44.43, 68.56±2.67, 284.98±21.99, 162.59±28.67, 1.70±0.73, 0.45±0.16(g/d), and when 10, 20 g SFA/d was fed, they were increased by 7.71;, 13.98;, 10.54;, 21.4;, 5.7;, 15.45;, 20.73;, 33.37;, 21.7;, 27.79;, 14.12;, 23.53; and 4.44;, 13.33;. The apparent digestibility of OM, CP, cellulose, semi-cellulose, Ca, P in control group was 69.46±1.21, 64.78±2.74, 69.62±1.97, 61.75±8.64, 17.77±7.38, 21.24±7.31(;), when 10, 20 g SFA/d was added, they were increased by 2.79;, 6.74;, 1.42;, 6.47;, 8.17;, 9.78;, 12.23;, 11.71;, 7.99;, 11.37; and 1.65;, 8.8;. The average body weight gain and the retention of N, Ca and P was 123.19±65.46, 7.08±0.35, 1.19±0.72, 0.43±0.16(g/d), when 10, 20 g SFA/d was supplemented, they were increased by 26.46;, 29.40;, 5.65;, 11.86;, 23.53;, 41.18; and 6.98;, 16.28;. [Conclusion]The present study showed that SFA could increase the intake, increase the amount of the digestible DM, OM, cellulose, semi-cellulose, increase the apparent digestibility of DM, OM and cellulose when 20 g/d was added, however, there was no significant effects of two different amounts of sodium fumaric acid on the Ca and P metabolism.

摘要： [目的]粗料型日粮中添加延胡索酸二钠对绵羊消化代谢的影响.[方法]选用健康、体重年龄相近的中国美利奴细毛羊(新疆型)(公羊)18只,分为3组,每组6只,试验Ⅱ组和试验Ⅲ组日粮中分别添加剂量为10和20 g/d的延胡索酸二钠,试验Ⅰ组不添加作为对照组,[结果]对照组绵羊的干物质采食量、有机物、粗蛋白质、纤维素、半纤维素、钙、磷的消化量(g/d)分别为1 414.05±59.71、917.89±44.43、68.56±2.67、284.98±21.99、162.59±28.67、1.70±0.73、0.45±0.16,添加延胡索酸二钠10、20 g/d后分别增加了7.71;、13.98;,10.54;、21.4;,5.7;、15.45;,20.73;、33.37;,21.7;、27.79;,14.12;、23.53;、4.44;和13.33;.对照组绵羊有机物、粗蛋白质、纤维素、半纤维素、钙、磷的消化率分别为69.46±1.21、64.78±2.74、69.62±1.97、61.75±8.64、17.77±7.38、21.24±7.31(;),添加延胡索酸二钠10、20 g/d后分别增加了2.79;、6.74;,1.42;、6.47;,8.17;、9.78;,12.23;、11.71;,7.99;、11.37;、1.65;和8.8;.对照组绵羊日增重、氮、钙和磷保留量(g/d)分别为123.19±65.46、7.08±0.35、1.19±0.72、0.43±0.16,添加延胡索酸二钠10、20 g/d后分别增加了26.46;、29.40;,5.65;、11.86;,23.53;、41.18;和6.98;、16.28;.[结论]在绵羊日粮中添加两种水平的延胡索酸二钠均可不同程度地提高绵羊采食量,提高绵羊对干物质、有机物、纤维素、半纤维素的消化量,增加氮、钙、磷保留量和日增重,添加量为20 g/d时可显著提高绵羊对干物质、有机物和纤维素的消化率,但两种水平的延胡索酸二钠对钙、磷代谢无显著影响.