腐植酸豆粕发酵活性肽在海刺参、基围虾、蓝子鱼生态养殖模式中的应用研究

Application Research of Humic Acid Soybean Meal Fermentation Peptide in Ecological Culture of Sea Stichopus,Basal Shrimps and Siganid Fishes

以腐植酸豆粕发酵活性肽和丁酸梭菌、植物乳杆菌应用于海刺参、基围虾、蓝子鱼进行生态养殖试验。结果表明:可以使海刺参增重率提高26.46%~34.48%,基围虾增重率提高23.63%~36.36%,蓝子鱼增重率提高38.0%~54.0%。经测定,与对照组相比,试验组海参圈理化指标均有变化:硫化氢降低0.003~0.010 mg/L、氨氮降低0.04~0.21 mg/L、亚硝酸盐降低0.013~0.024 mg/L、溶解氧提高1.10~3.36 mg/L;pH值稳定在8.15~8.20之间、透明度提高14.6%~29.8%、浊度降低1.9%~8.3%、底栖硅藻增加2~7 g/m^(2)。从经济效益看,试验组3较对照组投入成本增加1500元/亩,收入增加8406元/亩,净收益增加6906元/亩;海刺参幼稚参投入重量与产出成品参重量比为1∶5.53。本模式在海参养殖区域推广应用,将会带来可观的经济效益和生态效益。

The application of humic acid soybean meal fermentation peptide,Clostridium butyricum,and Lactobacillus plantarum were used in the ecological culture experiment on sea stichopus,basal shrimp,and siganid fish.The results showed that it could increase the weight gain rate of sea cucumber by 26.46%~34.48%,basal shrimp by 23.63%~36.36%,and siganid fish by 38.0%~54.0%.After measurement,compared with the control group,the physicochemical indexes of sea cucumbers in experimental groups were changed.It could decrease hydrogen sulfide by 0.003~0.010 mg/L,ammonia nitrogen by 0.040~0.021 mg/L,nitrite by 0.013~0.024 mg/L,increase the dissolved oxygen by 1.10~3.36 mg/L,and the pH value was stable between 8.15 and 8.20,transparency increased by 14.6%~29.8%,turbidity decreased by 1.9%~8.3%,and benthic diatoms increase by 2~7 g/m^(2).From the economic benefits,the input costs of experimental group 3 increased by 1500 yuan/mu,income increased by 8406 yuan/mu,and net income increased by 6906 yuan/mu.The input-output ratio of sea stichopus was 1~5.53.The promotion and application of this model in sea cucumber breeding areas would bring significant economic and ecological benefits.