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Título: Influence of diets supplemented with vitamins C and E on pirarucu (Arapaima gigas) blood parameters
Autor(es): Jaqueline Inês Alves de Andrade
Eduardo Akifumi Ono
Glauber Cruz de Menezes
Elenice Martins Brasil
Rodrigo Roubach
Elisabeth Criscuolo Urbinati
Marcos TavaresDias
Jaydione Luíz Marcon
Elizabeth Gusmão Affonso
Assunto: fish
Arapaima gigas
ISSN: 1095-6433
Revista: Comparative Biochemistry and Physiology. A, Molecular & Integrative Physiology
Volume: 146
Resumo: This study evaluated the influence of diets supplemented with 500, 800, 1200 mg kg− 1 of vitamin C (ascorbic acid or AA) and vitamin E (α-tocopherol or α-T) on the physiological responses of pirarucu fed for 2 months. Weight and mortality were not affected by dietary vitamin type or their concentrations. Significant increase (p < 0.05) on the red blood cells count was obtained on treatments with 800 and 1200 mg AA kg− 1 and on the hemoglobin concentration on treatment with 500 mg α-T kg− 1 relatively to control. Mean corpuscular volume presented a significant decrease (p < 0.05) on treatment with 800 and 1200 mg AA kg−1 when compared to control. Mean corpuscular hemoglobin concentration was significantly high (p < 0.05) on treatment with 500 mg α-T kg− 1. Only in vitamin C treatments, we noticed a significant increase (p < 0.05) in the number of leucocytes relative to control. All fish in the vitamin-supplemented treatments, except 500 mg AA kg− 1, had high total protein values compared to control. Fish treated with 800 or 1200 mg α-T kg− 1 also showed increases in plasma glucose concentrations. Our results suggest that 800 and 1200 mg AA kg− 1 are probably the most suitable concentrations for pirarucu diets, although high vitamin E diets are not necessary for quantitative leucocyte increases for this species.
ISSN: 1095-6433
Aparece nas coleções:Coordenação de Tecnologia e Inovação (COTI)

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