Effects of dietary vitamin C levels on tissue ascorbic acid concentration, hematology, non-specific immune response and gonad histology in broodstock Japanese eel, Anguilla japonica

A feeding trial was conducted to evaluate the effects of dietary vitamin C (L-ascorbic acid, AA) levels on tissue AA concentration, hematology, non-specific immune response and gonad histology in male broodstock Japanese eel. A basal commercial diet was used as a control, and four other diets were prepared by supplementing 200, 400, 800 or 1600 mg AA kg− 1 diet in the form of L-ascorbyl-2-monophosphate (AMP). The analyzed AA concentrations of...