This study was conducted at the laboratory of Biology and Adaptive Aquatic Toxicology, as well as at the Pisciculture Laboratory, both from the Federal University of Santa Maria (UFSM). The overall objective was to evaluate the antioxidant effects of vitamin C on biochemical and hematological parameters of jundiá Rhamdia quelen. The study was divided in two experiments (phase), and the results of the first expe...