台灣水族寵物召集站

[lymphoma]

Li Y, Lovell RT. Elevated levels of dietary ascorbic acid increase immune responses in channel catfish. J Nutr 115: 123-31, 1985.


Abstract
Channel catfish fingerlings were fed purified diets containing 0 to 3000 mg/kg of ascorbic acid until external signs of scurvy were seen in the fish fed the ascorbic acid-deficient diet. At this time, resistance to bacterial infection, antibody production, complement activity and phagocytic activity were assessed for fish from the various dietary treatments. Mortality rates of fish experimentally infected with Edwardsiella ictaluri, the bacterium causing enteric septicemia in channel catfish, decreased with increases in dietary ascorbic acid doses, ranging from 100% for fish fed the ascorbic acid-deficient diet to 15% for fish fed 300 mg ascorbic acid per kilogram diet and 0 for fish fed 3000 mg ascorbic acid per kilogram diet. Antibody response to E. ictaluri antigen, hemolysis of sensitized sheep erythrocytes by complement activity and phagocytic engulfment of E. ictaluri by peripheral phagocytes were each impaired in fish fed the diet without supplemental ascorbic acid; intracellular bactericidal activity of the phagocytes was not affected by ascorbic acid deficiency. There were no differences in antibody production, complement activity, or phagocytic activities among fish fed diets containing 30-300 mg ascorbic acid/kg of diet. However, the dose level of 3000 mg ascorbic acid/kg significantly enhanced antibody production and complement activity.

[ivan9643]

非常感謝lymphoma分享

但,如果只將維他命C等元素 加入水中, 效果是否等同呢?
還是注入飼料魚中好呢

[3：16]

加入水中幾乎等於把錢直接丟到水裡了，Vit C 非常容易氧化失去活性，但是我記得水族、水產用的Vit C 不會那麼容易氧化，一種是包埋技術處理過，另一種好像是甲基化，就是在最易氧化的一端上加個甲基~~~~~~不知道有沒有記錯！