鲍系列配合饲料的研制及其养殖效果

Development of series artificial diets for abalone and its culture efficiency

报道鲍从育苗至养成的幼体鲍、稚鲍及成鲍系列配合饲料的3种配方、生产工艺和养殖效果：用幼体鲍饲料代替部分硅藻比单独使用硅藻可延长幼体鲍的附板天数10 d左右,提高出苗率30％～40％、成活率15％～20％；用稚鲍饲料养殖3．5 mm的稚鲍66 d,平均生长速度为169μm·d^(-1),显示出良好的生长性状；用成鲍饲料养殖25 mm左右的成鲍90 d,平均增长速度达172μm·d^(-1),平均增重速度达105 mg·d^(-1),分别比某商品成鲍饲料养殖成鲍的结果高20 μm·d^(-1)、12 mg·d^(-1),平均饲料系数为2．0,比某商品成鲍饲料养殖成鲍的结果低0．1。

The studies on developing series artificial diets with different diet prescription, production technics and its culture efficiency for Abalone larval, juvenile and adult had been carried out. The results showed that Abalone larval fed with the artificial diet instead of part of diatom adhered to board 10 days longer than that only fed diatom, seedling output and survival rate increased by 30%-40% and 15%-20% respectively, average growth rate of Abalone juvenile of 3.5 mm fed on the diet for 66 days was 169 μm·d^-1, average growth rate of adult of 25 mm fed adult diet for 90 days was 172 μm·d^-1, average weight gain was 105 mg·d^-1, average feed coefficient 2.0, which were 20 μm·d^-1, 12 mg·d^-1 higher and 0.1 lower than those of one commercial diet which was 152 μm·d^-1, 93 mg·d^-1 and 2.1 respectively.