中文摘要：

【目的】为探讨日粮代谢能水平与粗蛋白质含量对5~10周龄肉鸭生长发育性能及肌肉品质的影响。【方法】选取540只5周龄苏邮2号肉鸭，采用3伊3两因子设计法，设置9个处理组，每组3个重复，每个重复公母各10只，能量水平为：高代谢能（HE，12.20MJ/kg）、中代谢能（ME，11.80MJ/kg）和低代谢能（LE，11.40MJ/kg），蛋白水平为：高蛋白质（HP，16.80豫）、中蛋白质（MP，15.30豫）和低蛋白质（LP，13.80豫）。【结果】结果表明：淤第1、2、4、5、6组试验鸭平均日增重显著地高于第3、9组（P<0.05），第3、9组料重比显著地高于其余各组（P<0.05），第5、6组试验鸭体斜长显著地高于第1、9组（P<0.05）。饲粮代谢能和粗蛋白质水平对平均日增重有显著的互作效应（P约0.05），粗蛋白质水平对体斜长有显著的影响（P约0.05）。于第5组试验鸭半净膛率、全净膛率、腿肌率、胸肌率与第1组相比，差异达到显著水平（P<0.05），第6组全净膛率与第1组间差异显著（P<0.05），第5、8组腿肌率显著地高于第1、2组（P<0.05），第5组胸肌率与第3组间差异显著（P<0.05）。粗蛋白主效应在半净膛率、全净膛率间达到显著水平（P约0.05），胸肌率的代谢能主效应显著（P约0.05），腿肌率的代谢能粗蛋白的互作效应显著（P约0.05）。盂肌苷酸含量在各个试验组间以及不同肌肉组织间的差异不显著（P>0.05），但肌苷酸在胸肌中的含量普遍要高于腿肌，代谢能、粗蛋白及代谢能粗蛋白的互作效应均不显著（P>0.05）。第8组试验鸭胸肌粗脂肪含量显著地高于第1组（P<0.05），胸肌粗脂肪含量代谢能粗蛋白互作效应显著（P约0.05）。第7组试验鸭腿肌pH值显著地高于第8组（P<0.05），代谢能粗蛋白间的互作效应显著（P约0.05）。【结论】在相同饲养管理条件下，采食代谢能11.80MJ/kg、粗蛋白15.30%的

英文摘要：

【Objective】In order to investigate the effects of energy and crude protein level on the growthperformance and muscle quality of meat duck aged from5to10weeks.【Methods】Using3伊3factorialarrangement of treatments,5405-week-old meat ducks were randomly divided into9treatments,eachtreatment3replicates,and each replicate10males and10females.Three dietary ME levels,11.40MJ/kg,11.80MJ/kg and12.20MJ/kg,and three dietary CP levels,13.80%,15.30%and16.80%.【Results】Theresults indicated that:淤the average daily weight gain of the1st,2nd,4th,5th,6th groups was signifi原cantly higher than that of the3rd,9th groups(P<0.05).The feed conversion ratio of the3rd,9th group was significantly higher than that of the other groups(P<0.05).The body length of the5th,6th group wassignificantly higher than that of the1st,9th groups(P<0.05).The interactional influence on the averagedaily weight gain was significant(P<0.05),the influence of CP on the body length was also significant(P<0.05).于The semi-evisecrated percentage,evisecrated percentage,leg muscle percentage,breastmuscle percentage of the5th group were significantly higher than those of the1st group(P<0.05),the e原visecrated percentage of the6th group was significantly higher than that of the1st group(P<0.05),theleg muscle percentage of the5th,8th groups was significantly higher than that of the1st,2nd groups(P<0.05),the breast muscle percentage of the5th group was significantly higher than that of the3rdgroups(P<0.05).The influence of CP on the semi-evisecrated percentage and evisecrated percentage wassignificant(P<0.05),the influence of ME on the breast muscle percentage and the interactional influenceon leg muscle percentage was also significant(P<0.05).盂The inosinic acid content between all groupsand different tissues had no significant difference(P>0.05),but the insomniac acid content in the breastmuscle was generally higher than that in the leg muscle,the influence of ME,CP and interaction wasnot significant(P>0.05).The crude fat content in the breast muscle