不同水平的益生菌制剂对杂交鲟生长性能的影响  

Effect of different levels of probiotic preparations on the growth performance of hybrid sturgeon

作　　者：韩丽军 HAN Lijun(Yixian County Aquatic Technology Extension Station,Baoding 074200,Hebei China)

机构地区：[1]易县水产技术推广站,河北保定074200

出　　处：《黑龙江水产》2024年第3期288-290,共3页Northern Chinese Fisheries

摘　　要：试验旨在研究不同水平的益生菌(probiotics)制剂对杂交鲟(西伯利亚鲟Acipenser baerii♂×施氏鲟Acipenser schrenckii♀)生长性能的影响,确定益生菌制剂在杂交鲟养殖中的最适添加水平。试验选择健康、体重约为75 g的杂交鲟400尾,随机分成4组,每组4个重复,每个重复25尾。对照组杂交鲟投喂基础饲料,益生菌制剂组的杂交鲟分别投喂含有0.2%、0.4%和0.8%的益生菌制剂。饲养期56 d。试验结束后,检测各组杂交鲟的生长性能。结果显示,试验2组的杂交鲟试验末重、增重率显著高于对照组(P<0.05),而饲料系数显著低于对照组(P<0.05)。益生菌制剂对杂交鲟的成活率有所提高,均为100%。益生菌制剂对杂交鲟的肝体比和脏体比无显著影响(P>0.05)。研究表明,杂交鲟养殖饲料中添加0.4%的益生菌制剂可以有效改善杂交鲟的生长性能。This experiment was conducted to investigate the effects of different levels of probiotics on the growth performance of hybrid sturgeon(Acipenser baerii♂×Acipenser schrenckii♀),and to determine the optimal supplemental level of probiotics in hybrid sturgeon culture.400 healthy hybrid sturgeon with a body weight of about 75g were randomly divided into 4 groups with 4 replicates per group and 25 sturgeons per replicate.The hybrid acipenser in the control group was fed basic diet,and the hybrid acipenser in the probiotics group was fed probiotics containing 0.2%,0.4%and 0.8%,respectively.The feeding period was 56 days.After the experiment,the growth performance of hybrid acipenser in each group was tested.The results showed that the final weight and weight gain rate of hybrid sturgeon in test group 2 were significantly higher than those in control group(P<0.05),and feed conversion ratio was significantly lower than that of control group(P<0.05).The survival rate of hybrid sturgeon was increased by probiotics,all of which were 100%.Probiotics had no significant effects on hepatosomatic ratio and viscerosomatic ratio of hybrid sturgeon(P>0.05).The results showed that the growth performance of hybrid sturgeon could be effectively improved by adding 0.4%probiotics to hybrid sturgeon aquaculture feed.

关 键 词：益生菌制剂(probiotics) 杂交鲟 增重率 饲料系数 生长性能 

分 类 号：S965.215[农业科学—水产养殖]