微量元素缓释丸对绵羊器官中硒铜钴含量的影响

将２００只绵羊分为４组，第１、２、３组分别投服３种不同的缓释丸，第４组为对照组。结果表明，该缓释丸在瘤胃内环境中缓慢释放微量元素，１月左右即引起全血和被毛Ｓｅ、Ｃｕ、Ｃｏ含量明显升高（Ｐ＜０．０１），达到动物适宜水平，投服３６０ｄ后全血、被毛和肝脏Ｓｅ、Ｃｕ、Ｃｏ极显著高于对照组。因此，该缓释丸对绵羊Ｓｅ、Ｃｕ、Ｃｏ缺乏提供了一种有效防制措施

Effect of Trace Elements Sustained Release Pellets on Concentration of Selenium, Copper and Cobalt in Organs of Sheep

sheep were divided into 4 groups. 3 groups, each composed of 50 sheep, were given the different trace elements sustained release pellets. One group served as a control. The results showed that the pellets released slowly trace elements in the reticulum of the sheep. The concentrations of selenium, copper and cobalt in whole blood and hair were increased significantly ( P <0.01), and reached the suitable level for sheep growth around 1 month after feeding. The concentrations of the three elements in whole blood, hair and liver were significantly higher than that of the control after 360 d of feeding. It is suggested that serving with the trace elements sustained release pellets are efficient means for controlling deficiency of selenium, copper and cobalt in sheep.