补饲矿物元素对卡拉库尔羊血液及瘤胃液矿物元素含量的影响

Influence of the Levels of Minerals in Diet of Karakul Sheep on the Mineral Contents in Rumen Liquid and Blood

选用3只装有永久瘘管的卡拉库尔羊,在日粮中添加Ca、Mg、Fe、Mn、Cu、Zn等矿物质元素,在饲喂矿物质元素的0d、5d、9d、12d分别采取瘤胃液和血液,测定瘤胃液及血液相应矿物质元素的含量,研究补饲矿物质对卡拉库尔羊血液及瘤胃液中矿物质含量的影响。试验结果表明:①瘤胃液Ca、Mg的含量在第5d时升为最高,之后有平缓下降趋势;Zn和Cu含量在第5d时有下降趋势,之后迅速恢复原有水平;Fe含量则有下降趋势。②血液中Cu含量变化不大,其余矿物质含量在血液中均有不同程度上升,其中Ca、Fe、Mn、Zn含量上升最为明显。

In order to study the influence of diet levels of minerals on the contents of minerals in blood and rumen liquid, three karakul sheep with having permanent fistulas on belly were chosen to analyze the contents of the minerals in rumen liquid and blood at Od, 5d, 9d, 12d after feeding diet to which Ca, Mg, Fe, Mn, Cu, Zn were added, respectively. The experiment indicated that： ① in the rumen, the concentration of Ca, Mg, reached the highest level at the fifth day, and then there had been a slowly descending trend. The concentration of Zn and Cu showed the descending trend at fifth day and returned to original level quickly after that. The concentration of Fe, however, was descended significantly during all the time. ② in the blood, the variety of copper concentration was not obvious. The concentration of other minerals increased with different degrees, in all of which the improvement of Ca, Fe, Mn , Zn concentration was the most significant.