Compound premix for promoting shrimp and crab molting as well as preparation method and feed thereof

The invention discloses a compound premix for promoting shrimp and crab molting. The compound premix comprises the following components in parts by weight: 0.1-0.5 part of a pearl cyanotis arachnoideaextract; 10 to 30 parts of vitamin premix; 40-60 parts of trace element premix; 1-3 parts of calcium gluconate; 1-20 parts of a calcium supplement; 1-20 parts of an immunopotentiator; and 5-10 partsof rice hull powder. The invention also discloses a preparation method and a feed of the compound premix for promoting shrimp and crab molting. By the adoption of the method, the requirements of shrimps and crabs for various nutrients in the shelling period are met, shelling of the shrimps and crabs is effectively promoted, the shelling period is shortened, and the growth speed and survival rate are increased. 本发明公开了一种促进虾蟹蜕壳的复合预混料，包括以下按重量份计的组分：珍珠露水草提取物0.1-0.5份；维生素预混料10-30份；微量元素预混料40-60份；葡萄糖酸钙1-3份；钙补充剂1-20份；免疫增强剂1-20份；稻壳粉5-10份。本发明还公开了一种促进虾蟹蜕壳的复合预混料的制备方法和饲料。采用本发明，满足虾蟹在蜕壳期间对各种营养素的需求，有效促进虾蟹蜕壳，缩短蜕壳周期，提高生长速度和成活率。