Ascorbyl palmitate and tocopherol acetate as metabolic antioxidants in dourado larvae

• Autor(a) principal: Okamura, Daniel
• Data de Publicação: 2008
• Outros Autores: Araújo, Felipe Guedes de, Logato, Priscila Viera Rosa, Silveira, Ulisses Simon da, Murgas, Luis David Solis, Freitas, Rilke Tadeu Fonseca de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/343
• topic: Salminus brasiliensis; dehydroascorbic acid; vitamin C; vitamin E; Salminus brasiliensis; ácido deidroascórbico; vitamina C; vitamina E

The objective of this work was to evaluate the effect and interaction between supplementation of tocopherol acetate and ascorbyl palmitate, in the diet of dourado larvae (Salminus brasiliensis), during itsinitial development. The experimental design was completely randomized in split plot, as follows: in the plot, a factorial arrangement (2x3) with six diets, constituted by the combination between two concentrations oftocopherol acetate (0 and 250 mg kg-1) and three concentrations of ascorbyl palmitate (0, 100 and 1,000 mg kg-1); and in the subplot, with two periods of sampling (5 and 15 days of feeding). In the larvae, determinations were performed for the concentrations of the ascorbyl palmitate, ascorbic acid and dehydroascorbic acid, total length,weight and height of the head. Ascorbyl palmitate provided an increase in the total length and in the weight of the larvae after 15 days of feeding. For head height, differences were observed among the three doses of tested ascorbyl palmitate. The supplementation of ascorbyl palmitate increased the vitamin C concentrations. Althoughvitamin E has not infl uenced the development sizes, it acted as a metabolic pro-oxidant, which increased thedehydroascorbic acid.