Effects of soybean meal replacing fishmeal on the growth performance of Hoplobatrachus rugulosus
In order to investigate the effect of fermented soybean meal instead of fish meal on the growth performance of Hoplobatrachus rugulosus,180 Hoplobatrachus rugulosus with sizes ranging from 24g/pcs to 28g/pcs were used as test subjects for the study,and six treatment groups were set up for the experiment.According to the proportion of fermented soybean meal replacing fish meal,they were 0％,20％,40％,60％,80％and 100％groups.Each group had 30 Hoplobatrachus rugulosus in 3 replications of 10 frogs each.The experiment lasted for 60 day.The weight gain of the Thai frogs was determined at the end of the experiment.The results showed that the fermented soybean meal instead of fish meal had no significant effect on the feeding rate and survival rate of Hoplobatrachus rugulosus;the difference in weight gain rate between the 0％and 20％groups was not significant;the difference be-tween the 40％,60％and 80％groups and the 0％group was not significant,but significantly lower than that of the 20％group(P＜0.05);and the 100％group had the lowest rate of weight gain,which was significantly lower than that of the control group,the 40％group,the 60％group,the 80％group(P＜0.05),and the 100％group(P＜0.05),and the weight gain rate of the 100％group was the lowest.(P＜0.05)and highly significant(P＜0.01)lower than the 20％group;feed efficiency was highest in the 20％group,but the difference with the 0％,40％,60％and 80％groups was not significant and significantly higher than the 100％group(P＜0.05).The results of the experiment showed that replacing fish meal with 20％fermented soybean meal could improve the growth per-formance of Hoplobatrachus rugulosus.
万方数据
维普
