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《Chinese Journal of Animal Nutrition》 2007-05
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Study on the Copper Condition in Small-Fat-Tail Sheep

LV Ai-jun1 MU A-li2 YANG Zai-bin3* YANG Wei-ren3(1.Bureau of Agriculture and Woodcraft,Laoshan Borough,Qingdao 266061,China;2.Qingdao ANPU Animal Nutrition Manufacturing Co.,Ltd,Qingdao 266061,China;3.College of Animal Science and Technology,Shandong Agricultural University,Tai'an 271018,China)  
The status was studied on whether copper was surplus or lack in small-fat-tail sheep by the survey of feed resource and diet component,the measuration of liver and blood copper concentration,and supplemental feeding method.The range of copper concentration of the six investigated sheep diets was 41.1%~96.5% of the standard requirement of Chinese sheep.The liver and blood copper concentrations of all investigated areas were range from 157.60 to 176.49 mg/kg and 0.70 to 0.72 ug/mL,respectively,both of which were lower than standard requirement.The values suggest that on the current feeding system,extra Cu must be added to small-fat-tail sheeps.In supplemental feeding experiment,using the random block design,and adding 5~20 mg/kg Cu to the diet,the results showed that the maximal daily gain of trial group was increased by 96 g than that of control group,the blood copper was increased significantly,these suggested that adding 5~20 mg/kg Cu to the diet of small-fat-tail sheep of Shandong can improve the performance.
【Fund】: “十一五”国家科技支撑计划(2006BAD14B07-3)“羊、肉牛等规模化健康养殖技术研究与产业化示范”
【CateGory Index】: S826
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