Abstract
The vitamin C activity of ascorbic acid 2-sulfate (AsS) in the newborn of rainbow trouts has been investigated. The trouts were divided into three groups : 1) vitamin C deficient diets group, 2) AsS additional diets group and 3) AsA additional diets group. Additional AsS on basal diets were onset equivalent to equal moles of AsA (1 mmol/diet 100g). Feeding test were carried out for 152 days. The deformed rainbow trout were occured to only vitamin C deficient group. This investigation has shown that AsS prevent scorbutic symptoms (deformity) in young rainbow trouts. The vitamin C level (wet weight) of 1), 2) and 3) groups after 119 days were 5.7,177 and 272μg/g in liver, 1.7,33 and 47μg/g in muscle. The hydroxyproline level (dry weight) of 1), 2) and 3) groups after 119 days were 0.92,1.44 and 1.39g/100g, after 152 days were 0.83,1.37 and 1.38g/100g in bone, respectively. Part of orally administrated AsS were hydrolyzed by AsS sulfohydrolase. In these investigation, data has shown that AsS is possessed of vitamin C activity in the newborn rainbow trout.
