海藻在南美白对虾饲料中的应用研究

EFFECTS OF MARINE ALGAE POWDER ON THE GROWTH OF Penaeus vannamei

在以鱼粉、豆粕等为主要蛋白源的实用饲料中添加不同含量的海藻粉 (0 % ,3 % ,6 % ,9 %和12 % ) ,喂养体质量为0.40～0.61g的南美白对虾幼虾30d。结果表明 ,饲料中添加3%组的南美白对虾体增重和蛋白质效率显著高于其它各添加组 ,而未添加海藻粉组生长最差 ;添加3 %海藻组饲料系数最低 ,而未添加组和添加9 %和12%组最高 ;对对虾体成分的分析显示不同含量的海藻粉显著影响对虾体灰分。

Different practical diets with different inclusion levels of marine algae powder (0%, 3%, 6%, 9% and 12% of dietary dry weight) were conducted to investigate the effects on the growth of Penaeus vannamei Boone at the initial weight of 0.40～0.61 g. The results showed that the weight gain and protin efficiency ratio are higher under the algae group with 3% inclusion than under other supplemented ones, and the lowest under the one with no inclusion. The feed conversion ratio was the lowest under the group with 3% dietary algae concentration, but the hightest under the groups with 9%,12% and 0%. Different inclusion levels of marine altgae powder significantly affected the body composition, especially the contents of lipid, ash and total carbohydrate.