异育银鲫对维生素C需要量的研究

在饲料中添加不同含量的结晶Vc（AA）和包膜从（CAA）饲养异育银鲫，结果发现，当饲料中缺乏Vc时，异育银鲫并没有表现出明显的缺乏症状，当饲料中的Vc添加量为AA400mg／kg或CAA200mg／kg时，异育银鲫的增重率和肝脏、血浆中的Vc含量达到最大。在本研究条件下，作者建议，异育很鲫对维生素C的需要量为200mg／kg饲料。

A STUDY ON THE REQUIREMENT OF VITAMIN C FOR ALLOGYNOGENETIC CRUCIAN CARP

Allogynogenetic crucian carp was fed by purified diets containing different contents of crystalline ascorbic acid (AA) and coated ascorbic acid (CAA). Signs of ascorbate deficiency were not observed in fish fed ascorbate-free dict. The growth rate and the content of vitamin C in liver and serum were highest when diets contained 400ppm AA or 200ppm CAA. Thus, the requirement of Vc in diet for Allogynigenetic crucian carp being 400mg/kg is suggested.