文章基本信息

标题：Effects of Dietary Supplementation with Copper Sulfate or Tribasic Copper Chloride on Carcass Characteristics, Tissular Nutrients Deposition and Oxidation in Broilers
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作者：Zhang Xiang-Qi ; Ke-Ying Zhang ; Xue-Mei Ding 等
期刊名称：Pakistan Journal of Nutrition
印刷版ISSN：1680-5194
电子版ISSN：1994-7984
出版年度：2009
卷号：8
期号：8
页码：1114-1119
DOI：10.3923/pjn.2009.1114.1119
出版社：Asian Network for Scientific Information
摘要：The experiment was conducted to compare the effects of dietary Tribasic Copper Chloride (TBCC) and Copper Sulfate (CuSO₄) on carcass characteristics , copper deposition and tissular nutrients oxidation in broilers. A 2x5 factorial (two copper sources: CuSO₄ or TBCC; five added copper levels as 0, 50, 150, 250 or 350 mg/kg) completely randomized design was conducted in experiment. 1,890, 1 day old, Cobb 48 commercial male chicks were randomly allotted into 63 floor pens of 30 birds each and fed to 40-days-old. Two birds from each pen were sacrificed. Their carcass characteristics and the contents of crude fat, copper, V_E or Malondialdehyde (MDA) in tissues were determined. Results indicated that: when added copper level was 150 mg/kg, half-evisceration yield and breast yield of broilers increased. The evisceration yield of broilers was raised by feeding TBCC and supplementation with 50 mg/kg copper from TBCC got the biggest evisceration yield; when added copper levels increased from 50-350 mg/kg, contents of copper or crude fat in liver or muscles and the level of V_E in heart were increased significantly, while, the levels of V_E or MDA in liver decreased; when added copper levels were less than or equal to 150 mg/kg, the copper levels in liver or muscles were similar between copper sources; while added copper levels were >150 mg/kg, the smaller quantities of copper in liver were gained by using TBCC comparing with feeding CuSO₄. It implicated that TBCC was a safe dietary copper source.