【作者】 郑学斌；

【导师】 张石蕊；

【作者基本信息】 湖南农业大学 ， 动物营养与饲料科学， 2003， 硕士

【摘要】 试验用1日龄皖南三黄肉雏鸡700只，随机分成7组，每个处理组设4个重复。采用玉米——豆粕型基础日粮，饲喂6周，分前后期两个阶段进行试验。试验以硫酸铜、蛋白螯合铜为外加铜源，基础日粮中不添加任何铜源为第1组，硫酸铜组补铜水平分别为10mg／kg(第2组)，60mg／kg(第3组)，120mm／kg(第4组)。复合使用蛋白螯合铜和无机铜的有机组补铜水平分别为：蛋白螯合铜10mg／kg(第5组)、20mg／kg+40mm／kg(第6组)、40mg／kg+80mg／kg(第7组)。 试验结果表明：前期6个试验组平均日增重分别比对照组提高3.34％、9.72％(P＜0.05)、4.31％、8.75％(P＜0.05)、13.61％(P＜0.05)、7.41％(P＜0.05)；料肉比分别比对照组降低1.12％、5.59％(P＜0.05)、1.12％、3.35％、7.82％(P＜0.05)、2.23％。无机铜第3、4组比第2组平均日增重分别提高6.17％(P＜0.05)、0.94％，料肉比降低4.52％、0％。复合有机铜第6、7组比第5组平均日增重提高4.47％、-1.23％，料肉比比第5组下降4.62％、-1.16％。 后期6个试验组比对照组平均日增重分别提高2.62％、4.48％、6.04％(P＜0.05)、3.08％、6.58％(P＜0.05)、6.96％(P＜0.05)，料肉比降低1.32％、3.94％、5.7％(P＜0.05)、3.5％、5.26％(P＜0.05)、6.58％(P＜0.05)。无机铜第3、4组比第2组平均日增重提高1.81％、3.34％，料肉比下降2.67％、4.44％；复合有机铜第6、7组比第5组平均日增重提高3.40％、3.77％，料肉比下降1.82％、3.18％。 从全期看，试验组比对照组平均日增重分别提高2.84％、6.13％(P＜0.05)、5.42％(P＜0.05)、4.82％、8.74％(P＜0.05)、7.10％(P＜0.05)，料肉比下降1.41％、4.23％、4.69％、3.76％、6.57％(P＜0.05)、5.63％(P＜0.05)；无机铜第3、4组比第2组平均日增重提高3.20％、2.62％，料肉比降低2.86％、3.33％；复合有机铜第6、7组比第5组平均日增重分别提高3.74％、2.17％，料肉比下降2.92％、1.95％。 试验表明，肉鸡日粮中添加一定的铜水平对肉鸡的生长是有明显的效果(P＜0.05)。高铜(60mg／kg-120mg／kg)添加组与对照组相比，平均日增重和料肉比差异显著(P＜0.05)，而铜水平60mg／kg两个添加组与铜水平120m／kg的两个添加组平均日增重及料肉比差异不显著(P＞0.05)，但前者优于铜水平为120mg／kg的后者。不同铜源与水平对肉鸡的采食量差异不显著(P＞0.05)，复合有机铜组与对应铜水平的无机铜组对肉鸡的平均日增重、料肉比差异不显著(P>0.05)，但有机组优于无机组。综合来看，铜水平为60m创kg的有机第6组在平均日增重、料肉比都优于其它各组。 随着铜水平的提高，试验组比对照组肝铜含量提高1.66%、3，23%、3.83%、1.巧%、3.0%、3.70%，差异不显著伊>0.05);但试验组排泄物铜含量是对照组的141.34%、408.86%、829.32%、142.68%、409.61%、827.85%，试验组与对照组相比差异极显著伊<0.01)。 不同铜水平对免疫器官铜含量、重量有显著的影响伊<0 .05)。铜水平为120m创铭的两个添加组与对照组相比免疫器官铜含量显著升高少<O .05)，与10m留铭两个添加组相比脾脏铜含量差异显著(P<0 .05)，其他各组差异不显著(P>.05);铜水平为10mg/吨的两个添加组与对照组相比，免疫器官重量差异显著介0.05)，铜水平为120mg/铭的两个添加组与10m创kg的两个添加组相比免疫器官重量明显减轻介0.05)，其他各组差异不显著伊>0.05)，复合有机铜组与对应铜水平的无机铜组相比免疫器官铜含量、免疫器官重量差异不显著，但有机铜组优于无机铜组。不同铜源及水平对肉鸡的成活率没有显著影响少>0.05)。 本试验结果表明，日粮中添加铜水平为60m留kg的复合有机铜组对肉鸡的生长性能有显著的促进作用伊<0.05)。更多还原

【Abstract】 700Wannan three yellow broilers, 1 day old, divided into seven groups with four repeats were fed with corn-soybean diet in six-week experiment conducted in two stages. CUSO4 and Cupro. were external copper resources. According to different copper level in the diet ,the seven groups were Cuso4 0 (groupl), Cuso410mg/kg(group2), Cuso460mg/kg(group3), Cuso4120mg/kg (group4),Cuprol0mg/kg(group5),Cupro20mg/kg+Cuso440mg/kg(group6),Cupro40mg/kg+ Cuso480mgAg(group7).The result showed ,compared with CK, in early stage ,ADG of six treatments increased 3.34%.9.72%(P<0.05),4.31%, 8.75%(P<0.05), 13.61 %(P<0.05), 7.41 %(P<0.05); F/G decreased 1.12%, 5.59%(P<0.05), 1.12%, 3.35%, 7.82%(P<0.05). 2.23%;ADG of group 3 , 4 inorganic Cu was higher 6.17%(P<0.05). 0.94% than group2 ,And F/G decreased 4.52%, 0%.ADG of group 6. 7(composite organic Cu) increased 4.47%, -1.23 % than group5, F/G decreased 4.62% . -1.16%.In late stage, ADG of six treatments increased 2.62%, 4.48%, 6.04%(P<0.05), 3.08%, 6.58%(P<0.05), 6.96%(P<0.05), F/G decreased 1.32%, 3.94%, 5.7%(P<0.05) , 3.50%, 5.26%(P<0.05), 6.58%(P<0.05).ADG of group3, 4 (inorganic Cu) was higher 1.81%. 3.34% and F/G decreased 2.67%, 4.44%,ADG of group6, 7 (composite organic Cu) increased 3.4%, 3.77% than group5 ,F/G decreasedl .82%. 3.18%.From whole stage, ADG of six treatments increased 2.84% 6.13%(P<0.05) , 5.42%(P<0.05). 4.82%. 8.74%(P<0.05), 7.10%(P<0.05), F/G decreased 1.41%. 4.23%. 4.69 %, 3.76% , 6.57%(P<0.05), 5.63%(P<0.05); ADG of group 3,4(inorganic Cu) was higher 3.20%. 2.62% than group 2 and F/G decreased 2.86%. 3.33%: ADG of group 6, 7 (composite organic Cu) increased 3.74%. 2.17%than group5 ,F/G decreased 2.92%, 1.95% The study showed , adding Cu in diet had a definite effect on broiler’s growing(P<0.05), Compared with CK, in high Cu group (60-120mg/kg), its ADG and F/G had a significant difference (P<0.05),And the rest all had not a significant difference ,only organic groups were better than inorganic groups, especially ADG and F/G of group 6 was superior to others .With higher Cu level, compared with CK ,Cu content of liver increased 1.66%, 3.23% 3.83%, 1.15%, 3.0%, 3.70% ,but had not a significant difference(P>0.05). and percentage of Cu content in excrement was 141.34%, 408.86%, 829.32%, 142.68%, 409.61%, 827.85% had a significant difference(P<0.01)Different Cu level had a significant effect on Cu content and weigh of immune organ. Compared with CK, the groups (120mg/kg) was more obvious. (P<0.05)on Cu content of immune organ(P<0.05).and compared with 10mg/kg groups, Cu content of spleen had a significant difference(P<0.05),the rest all had not a significant difference(P>.05); weigh of immune organ in 10mg/kg group had a significant difference compared with CK(P<0.05),Weight of immune in 120mg/kg group was lower than that of 10 mg/kg group(P<0.05),the rest all had not a significant difference(P>.05).there were no significant difference on Cu content and weigh of immune organ between organic groups and inorganic groups, but organic groups were better than inorganic groups. Different copper resources and level had not a significant effect on survival rate of broilers(P>0.05).The results showed, adding composite organic copper in diet (group6)improved broiler’s productivity property obviously(P<0.05)Zheng xue-bingDirected by prof. Zhang Shi-Rui更多还原