山羊饲料中添加腐植酸钠对矿物元素利用的影响

The Effects of Humic Acid Sodium Added to the Goat Feed on the Use of Mmineral Elements

为了探讨山羊饲料中添加腐植酸钠对矿物元素利用的影响,将60只关中奶山羊成年母羊随机分成2组。其中试验组补饲腐植酸钠4g/d.只,对照组保持日粮不变。在为期30d的试验结束时,测定了2组羊只粪便和羊奶中的矿物元素。结果表明:试验组羊奶P、Fe、Cu、Zn含量均低于对照组,其中Cu、Zn含量仅为对照组的53.57%和38.07%。而试验组粪便中Ca、P、Fe、Cu、Zn的含量分别是对照组的1.32、1.23、1.49、1.28和1.68倍。由此可见,补饲腐植酸钠可导致山羊饲料中矿物元素的过量流失和利用率下降。

In order to discuss the influence of sodium humic acid added on feed for goat to the use of mineral element, 60 adult guanzhong dairy goats were randomly divided into two groups,30 in each group. In test group,4 g sodium humic acid was provided for each goat every day. The ration of control group was not changed during test period. At the end of the feeding experiment, the mineral elements in the milk and dejection from the two groups were estimated. The result showed that the levels of P.Fe,Cu,Zn in milk from test group was lower than that of control group,the levels of Cu and Zn were only 53.57% and 38.07% as more as that of control group. The level of Ca.P、Fe、Cu、Zn in dejection from test group were 1.32,1.23,1.49,1.28 and 1.68 times as that of control group respectively. Thus it can be seen that the mineral elements was lost excessively and their utilization ratio was decreased by the odium humic acid added to feed for goats.