【作者】 杨章武； 张哲； 葛辉； 李正良； 卓吓晃； 林跃宗；

【Author】 YANG Zhang-wu;ZHANG Zhe;GE Hui;LI Zheng-liang;ZHUO Xia-huang;LIN Yue-zong;Fisheries Research Institute of Fujian;Xiamen Xia xing long seed production Co.Ltd;

【机构】 福建省水产研究所； 厦门市厦兴龙水产种苗有限公司；

【摘要】 为提高凡纳滨对虾种苗生产的生态化水平,分别以蔗糖、葡萄糖、淀粉为添加碳源,添加量为投饵量的50%,同时添加地衣茅孢杆菌,在1000 L的水体进行凡纳滨对虾生物絮团技术育苗实验。结果表明添加碳源组絮团含量明显高于对照组,且蔗糖组絮团的形成比淀粉组和葡萄糖组更早;蔗糖组和葡萄糖组,氨氮、亚硝酸盐含量显著低于对照组和淀粉组,其亚硝酸盐峰值浓度分别比对照组降低25.4%和31.4%,且未换水即自行下降;添加碳源各组絮团的粗蛋白、粗脂肪含量,显著高于对照组。粗蛋白含量最高的蔗糖组达到32.6%,表明凡纳滨对虾生物絮团技术育苗中蔗糖和葡萄糖作为添加碳源是合适的。更多还原

【Abstract】 In order to improve the ecological level of Litopenaeus vannamei in the process of shrimp seedlings production,50%bait amount of sucrose,glucose,starch was added to the prawn seedling water respectively as carbon source of the biofloc,bacillus licheniformis was also used.The whole experiment process was conducted in 1000 liters of water.Results indicate that carbon source adding group of floccules content was significantly higher than control group,and sucrose adding group of floccules formed earlier than starch and glucose group;Ammonia nitrogen and nitrite content was significantly lower than control and starch group s in sucrose and glucose adding group,and the nitrite peak concentrations decreased by 25.4%and 31.4%,respectively,compared with the control group and could automatically dropped without changing water;Crude protein and crude fat content significantly higher than the control group in carbon source adding group,and sucrose adding group hadthe highest crude protein content,reached 32.6%;The body length of the larval shrimp(P₁₄) of glucose and sucrose added group increased significantly by22.8%and 22.8%respectively（p<0.01）.Thus,Sucrose and glucose is appropriate carbon source during biofloc technology larval rearing of L.vannamei.更多还原