复合微生态制剂对草鱼生长性能、免疫功能及水体质量的影响  

Effects of composite microecological formulations on growth performance,immune function and water quality of grass carp

作　　者：林伟 刘巧凌 田海军 LIN Wei;LIU Qiaoing;TIAN Haijun(Fisheries College,Xinyang Agriculture and Forestry University,Xinyang,Henan Province 464000,China;New County Livestock and Aquatic Technology Service Center,Xinyang,Henan Province 464000,China)

机构地区：[1]信阳农林学院水产学院,河南信阳464000 [2]新县畜牧水产技术服务中心,河南信阳464000

出　　处：《中国饲料》2024年第18期69-72,共4页China Feed

基　　金：河南省现代农业产业技术体系建设专项资金项目(HARS-22-16-G3)。

摘　　要：文章旨在研究复合微生态制剂(Composite Microecological Formulations,CMF)对草鱼生长性能、免疫功能及水体质量的影响。试验将240尾同批次(16.51±1.03)g的草鱼幼苗随机分为4组,分别饲喂基础饵料+0%(CMF0组)、0.1%(CMF1组)、0.2%(CMF2组)、0.3%(CMF3组)的复合微生态制剂,每组3个重复,每个重复20尾。试验为期60 d,整个试验期间不换水、不充氧、不使用消毒剂。结果:(1)与CMF0组相比,CMF2组、CMF3组草鱼的末重、增重率、特定生长率显著提高(P<0.05),饲料系数显著降低(P<0.05)。CMF2组草鱼生长性能各项指标优于CMF3组,但差异不显著(P>0.05)。(2)与CMF0组相比,CMF1组、CMF2组、CMF3组草鱼血清中超氧化物歧化酶、过氧化氢酶、溶菌酶浓度显著提高(P<0.05)。(3)与CMF0组相比,CMF1组、CMF2组、CMF3组水体中第45、60天溶解氧含量显著提高(P<0.05),同时亚硝酸盐含量显著降低(P<0.05)。与CMF0组相比,CMF2组、CMF3组水体中第30、d、第60天氨氮含量显著降低(P<0.05)。结论:不同水平的复合微生态制剂均有提高草鱼生长性能、免疫功能,以及改善水体质量的效果。综合经济效益考虑,本试验条件下复合微生态制剂的适宜添加量为0.2%。This experiment aims to study the effects of composite microecological formulations(CMF)on the growth performance,immune function and water quality of grass carp.Method:240 grass carp seedlings from the same batch with a weight of(16.51±1.03)g were selected and randomly divided into 4 groups.They were fed with composite microecological formulations at the levels of basic feed+0%(CMF0 group),0.1%(CMF1 group),0.2%(CMF2 group),and 0.3%(CMF3 group),respectively.Each group had 3 replicates,with 20 fish per replicate.The experiment lasted for 60 days and did not change water,oxygenate,or use disinfectants throughout the entire period.Result:(1)Compared with the CMF0 group,the CMF2 group and CMF3 group significantly increased the final weight,weight gain rate,and specific growth rate of grass carp(P<0.05),while the feed coefficient significantly decreased(P<0.05).The growth performance of grass carp in CMF2 group was better than that in CMF3 group,but the difference was not significant(P>0.05).(2)Compared with the CMF0 group,the concentrations of superoxide dismutase,catalase,and lysozyme in the serum of grass carp in the CMF1,CMF2,and CMF3 groups were significantly increased(P<0.05).(3)Compared with the CMF0 group,the dissolved oxygen content in the water of the CMF1 group,CMF2 group,and CMF3 group significantly increased on the 45th and 60th day(P<0.05),while the nitrite content significantly decreased(P<0.05).Compared with the CMF0 group,the ammonia nitrogen content in the water of the CMF2 and CMF3 groups significantly decreased on the 30th,45th,and 60th day(P<0.05).Conclusion:Different levels of composite microecological formulations can improve the growth performance,immune function and water quality of grass carp.Taking into account economic benefits,the appropriate amount of compound microecological agents added is 0.2%.

关 键 词：复合微生态制剂 草鱼 生长性能 免疫功能 水体质量 

分 类 号：S963[农业科学—水产养殖]