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Ascorbic acid reduces the effects of hypoxia on the Amazon fish tambaqui

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Juveniles of tambaqui Colossoma macropomum were fed diets containing 0, 100 and 500 mg of L-ascorbic acid (AA) per kg of feed for 10 weeks. Subsequently exposed to acute hypoxia for 6 h, the animals fed with high levels of AA exhibited no changes in blood pH and plasma glucose and reduced levels of lipid peroxidation. Thus, AA-enriched diets reduce the effects of hypoxia insult on juveniles of C. macropomum.

Keywords: Colossoma macropomum; adaptation; nutrition; oxidative stress; vitamin C

Document Type: Research Article


Affiliations: Laboratory of Ecophysiology and Molecular Evolution, Department of Ecology, National Institute for Research in the Amazon-INPA, Av. André Araújo 2936, 69083-000 Manaus, AM, Brazil

Publication date: August 1, 2006

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