【作者】 张伟； 韩友文； 滕冰； 周桂莲； 许梓荣； 邹晓庭； 徐子伟； 刘敏华；

【Author】 Zhang Wei Han Youwen Teng Bing Zhou Guilian(Collage of Animal Science, Northeast Agriculture University Harbin 150030)Xu Zirong Zou Xiaoting(Feed Science Research Institute, Zhe Jiang University Hangzhou 310029)Xu Ziwei Liu Minhua(Zhejiang Academy of Agricultural Sciences Hangzhou 310021)

【机构】 东北农业大学动物科技学院； 浙江大学饲料科学研究所； 浙江省农业科学院畜牧兽医研究所；

【摘要】 本文研究了不同铬源(三氯化铬、甘氨酸铬与吡啶羟酸铬)及不同水个(0,0.4mg/kg与4mg/kg)对肉仔鸡能量、粗蛋白与粗脂肪代谢率的影响。试验结果表叨:对铬源而言,三氯化铬较吡啶羟酸铬显著提高了肉仔鸡6周末粗蛋白表现代谢率(p<0.05),甘氨酸铬较三氯化铬显著提高了6周末和脂肪表观代谢率(p<0.01),吡啶羟酸铬较三氯化铬显著提高了8周末粗蛋白与粗脂肪表观代谢率(p<0.05)。对铬的添加水平而言,0.4mg/kg水平与4mg/kg水平较零水平显著改善了6周末能量、粗蛋白与粗脂肪表观代谢率(p<0.05);4mg/kg水平较0.4mg/kg水平显著改善了8 周末粗脂肪的表现代谢率(p<0.05)。对性别而言,铬对雄性肉仔鸡较雌性肉仔鸡显著提高了粗蛋白表观代谢率(p<0.05)。补铬改善了肉仔鸡对日粮中能量、粗蛋白与粗脂肪的表现代谢率。更多还原

【Abstract】 The effects of chromium on apparent metabolizability of energy, protein and lipid and deposition in broilers with CrCl3, Cr-Gly, Cr-Pic at 0.4 and 4mg/kg (as Cr) level were studied. The results indicated that the chromium chloride increased apparent protein metabolizability more significantly than Cr-Pic (p<0.05) while chromium glycine chelate increased apparent fat metabolizability more efficiently than CrCl3(p<0.01) at six weeks with aspect to chromium source. And Cr-Pic significantly enhanced apparent protein and fat metabolizability than CrCl3 at eight weeks. For chromium level, apparent energy, protein and fat metabolizability were elevated much more by 0.4 and 4mg/kg level (p<0.05) than zero level at six weeks and apparent fat metabolizability by 4mg/kg than 0.4mg/kg. The response of improved apparent protein metabolizability to chromium was greater in males than in females (p<0.05). The chromium improved the metabolizability of energy, protein and fat in broilers.更多还原