Crescimento e perfil oxidativo de juvenis de Rhamdia quelen alimentados com diferentes níveis de vitamina E (α-tocoferol) na dieta

• Ano de defesa: 2013
• Autor(a) principal: Uczay, Juliano
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Zootecnia; UFSM; Programa de Pós-Graduação em Zootecnia
• Palavras-chave em Português: Dano oxidativo; Nutrição; Espécies reativas de oxigênio; Hematologia; Oxidative stress; Nutrition; Reactive oxygen species; Hematology; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/10844

The growth parameters, biochemical, and blood oxidative stress were evaluated in juvenile jundiás fed different levels of vitamin E (0, 200, 300 and 400 mg kg-1 in diet) after 60 days. At the end of the experiment, we observed improvements in growth variables: total length, standard, specific growth rate and condition factor, with the addition of vitamin E in the diet. The erythrocyte count was higher in diets containing vitamin E. The level of 400 mg kg-1 of vitamin E, decreased plasma triglyceride content and increased resistance of erythrocytes. Doses of 300 and 400 mg kg-1, reduced oxidative stress as oxidative biomarkers evaluated in the brain, liver, gills and muscle substances which thiobarbituric acid reactive substances (TBARS), lipid hydroperoxides (LOOH), superoxide dismutase (SOD), catalase (CAT), glutathione-S- transferase (GST) and the content of non-protein thiol groups (NPSH). Doses of vitamin E in the diet of juvenile catfishes above 300 mg kg-1 promotes improvements in growth parameters , and blood antioxidant system .