作　　者： ; ; ; ; ;

机构地区： 中国农业大学动物科技学院

出　　处： 《中国畜牧杂志》 2005年第9期17-20,共4页

摘　　要： 选用4只安装永久性瘤胃瘘管的杂一代羯羊,采用拉丁方设计,研究4种铜添加水平(0,6,12和18 mg/kg)和4种硫添加水平(0%,0.05%,0.10%和0.15%)在高钼(12.55 mg/kg)条件下对绵羊铜代谢及粗料消化能力的影响。结果表明:铜的添加可以显著地(P<0.05)提高血浆和三氯乙酸(TCA)溶解铜浓度;TCA溶解铜浓度随硫水平的提高极显著(P<0.01)降低,TCA不溶性铜极显著(P<0.01)提高。综合上述结果,赖氨酸铜是绵羊理想的有机饲料铜源。 Four wethers with permanent rumen fistula were used to determine effect of lysine copper supplementation on copper metabolism and roughage degradation in sheep fed high molybdenum diet in Latin-square design. The experiments diet contained 12.55 mg Mo/kg DM. Lysine copper and sodium sulfate were added and provided 0, 6, 12, 18 mg Cu/kg DM and 0%, 0.05%, 0.10%, 0, 15% sulfur respectively. The results showed that plasma Cu and trichloroacetic acid （TCA） soluble Cu increased （P 〈 0.05）. TCA soluble Cu decreased （P 〈 0.01） and TCA insoluble Cu increased （P 〈 0. 01） with increasing dietary S. It appears that lysine copper is an ideal organic copper source for sheep.

关 键 词： 畜牧学 铜代谢 赖氨酸铜 硫 绵羊

领　　域： [农业科学] [农业科学]