不同饲料组分对克氏原螫虾消化酶·SOD和糖原的影响

（目的]为实际养殖克氏原鳌虾的养分添加提供科学依据。方法]分别以脱脂鱼粉（动物蛋白）：米粉（淀粉）：芦苇粉（纤维素）为1：1：0、1：0：1、0：1：1、1：1：1的4种混合饲料喂养克氏鳌虾44d，并于10个时段测定鳌虾3种肠胃消化酶、SOD、糖原的含量：结果]饲料营养组分对鳌虾肠胃消化酶有良好的诱导作用，即：动物蛋白和纤维素均在0、33％、50％时可引起相应消化酶的适应性上升，而淀粉仅在0、33％时可引起淀粉酶上升；较高的动物蛋白和纤维素有益于肌肉中SOD的提高，而高淀粉则会显著降低鳌虾SOD值；肝糖原在高蛋白情况下能不受饲料中淀粉含量下降的影响，肌糖原则与淀粉含量保持一致；各生化指标经一定天数的波动后趋于稳定.结论]克氏鳌虾对饲料组分的变化具有一定的适应性；动物蛋白和纤维素的营养意义大于淀粉：

Effects of Dietary Monocomponent Deprivation on Digestive Enzyme,SOD,Glycogen of Procambarus clarkii

Objective] The study aimed to provide the scientific basis for nutrient addition in Procambarus clarkia culture.Method] Procambarus clarkii were fed with 4 mixed diets containing different levels of their digestive enzyme,SOD,glycogen at different period of time.Result] Nutrient components could induce corresponding gastrointestinal digestive enzymes of crayfish at dietary protein or cellulose level of 0,33%,50%,comparing to starch 0,33%; Animal protein and cellulose at high level were beneficial for the SOD,while starch was opposite.Liver glycogen of crayfish fed with high-protein diets were even higher than these with highcarbohydrate diets,meanwhile,the muscle glycogen apparent consistent with the content of carbohydrate.Overall,crayfish was well adaptable to change in the dietary composition.Conclusion] All biochemical indicators reach stable after days fluctuations.However,animal protein and cellulose are much more important than starch for crayfish.