益生菌对彭泽鲫生长性能及水体环境的影响  

Effect of probiotics on growth performance of Carassius auratus var pengze and water quality

作　　者：齐欣[1] 魏雪生[1] 陈颖[1] 张峻[1] 陈晓云[1] 

机构地区：[1]天津市园艺工程研究所,天津市300384

出　　处：《中国饲料》2007年第17期27-29,共3页China Feed

摘　　要：试验选用288条平均体重为35g的彭泽鲫随机分为6组,分别为对照组、枯草芽孢杆菌组(2.5×106CFU/L)、地衣芽孢杆菌组(2.5×106CFU/L)、植物乳杆菌组(1×108CFU/L)、戊糖链球菌组(1×108CFU/L)、光合细菌组(3×107CFU/L),每组设3个重复,每个重复16尾鱼。研究在养殖水体中添加不同益生菌对彭泽鲫的增重率、存活率、饵料系数及养殖水体氨氮、亚硝酸盐、COD的影响。结果表明:添加枯草芽孢杆菌、地衣芽孢杆菌和光合细菌能显著提高彭泽鲫的增重率和存活率,降低饵料系数,并且在降低水体氨氮、亚硝酸盐、COD含量方面均有显著效果,其中以地衣芽孢杆菌组效果最佳;而植物乳杆菌组和戊糖片球菌组与对照组相比无显著差异(P>0.05)。eightCarassiusauratusvarpengzeweredividedinto6groupincludingthecontrolgroupwithoutprobiotics,Lactobacillusplantarumgroup(2.5×106CFU/L),Pediococcuspentosaceusgroup(2.5×106CFU/L),Bacilluslicheniformisgroup(1×108CFU/L),Bacillussubtilisgroup(1×108CFU/L)andPSBgroup(3×107CFU/L).Everygrouphad3replicates,andeveryreplicatewith16fish.Theweightincrementrate,survivalrate,feedconversioncoefficientandwaterqualitiesweredetermined.TheresultsshowedthatB.subtilis,B.licheniformisandPSBcouldsignificantlyin-creasetheweightincrementrateandsurvivalrateoftheculturedfish,andreducethefeedconversioncoefficient,andinthemeantimeitplayedgreatrolesinreducingammonianitrogen,nitriteandchemicaloxygendemand(COD)concentrationinculturewaterbodies.TheB.licheniformisperformedthebesteffect,whileL.plantarumandP.pentosaceushadnosignifi-cantdifferencewiththecontrolgoup.[Keywords]probiotics;Carassiusauratusvarpengze;growthperformance;waterquality目前我国高密度水产养殖规模日益扩大,养殖水环境遭到严重的污染和破坏,病害频繁发生。随着人们对食品安全和环境保护意识的增强,在水产养殖中,利用益生素替代抗生素是国内外水产养殖者关注的焦点。本试验在完全不使用抗生素的情况下,对5　Two hundred and eighty-eight Carassiusauratus var pengze were divided into 6 group including the control group without probiotics,Lactobacillus plantarum group（2.5×10^6CFU/L）,Pediococcus pentosaceus group（2.5×10^6CFU/L）,Bacillus licheniformis group（1×10^8CFU/L）,Bacillus subtilis group（1×10^8 CFU/L）and PSB group（3×10^7 CFU/L）.Every group had 3 replicates,and every replicate with 16 fish.The weight increment rate,survival rate,feed conversion coefficient and water qualities were determined.The results showed that B.subtilis,B.licheniformis and PSB could significantly increase the weight increment rate and survival rate of the cultured fish,and reduce the feed conversion coefficient,and in the meantime it played great roles in reducing ammonia nitrogen,nitrite and chemical oxygen demand（COD）concentration in culture water bodies.The B.licheniformis performed the best effect,while L.plantarum and P.pentosaceus had no significant difference with the control goup.

关 键 词：益生菌 彭泽鲫 生长性能 水质 

分 类 号：S963[农业科学—水产养殖]