Retinal and lenticular lesions in vitamin‐C‐deficient juvenile red drum, <i>Sciaenops ocellatus</i> (L.)

Collins, B. K.; Collier, Linda L.; Collins, Jeffrey S.

doi:10.1111/j.1365-2761.1993.tb01252.x

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…1 (C)). The eye abnormalities caused by vitamin C deficiency were previously reported in fish species, such as rainbow trout (Halver et al 1975), red drum (Collins et al 1993), and oscar (Fracalossi et al 1998). also discussed that a high concentration of vitamin C in the fish eye reflects the importance of vitamin C in this organ and demonstrated that dietary vitamin C deficiency in cyprinid fish resulted in significant depletion of ascorbate concentrations in all eye compartments; retina, lens, and humour.…”

Section: Discussionmentioning

confidence: 75%

Interaction between vitamins C and E affects their tissue concentrations, growth, lipid oxidation, and deficiency symptoms in yellow perch (Perca flavescens)

Lee

Dąbrowski

2003

Br J Nutr

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We have conducted studies with juvenile yellow perch (Perca flavescens) over a period of 20 weeks to address the question of the interaction between water-and lipid-soluble antioxidant vitamins. Fish (2·25^0·14 g) were divided into twelve groups, and triplicate groups were fed one of four casein-based, semi-purified diets formulated to contain low or high vitamin E levels of either 5 or 160 mg/kg without or with vitamin C supplementation (250 mg/kg). Diets were designated as -C -E, -C+E, +C-E, or +C+E, respectively. The fish fed the +C+E diet showed significantly higher weight gain, feed intake, and feed efficiency than the groups fed vitamin C-deficient diets. Total ascorbate concentrations of liver were significantly higher in fish fed vitamin C-supplemented diets than in fish fed the vitamin C-deficient diet after 16 and 20 weeks. The liver a-tocopherol concentrations were increased by supplemental vitamin C in vitamin E-deficient dietary groups which indicates a sparing or regenerating effect of vitamin C on vitamin E. Fish fed vitamin C-deficient diets (-C-E and -C+E) exhibited severe deficiency symptoms, such as scoliosis, lens cataracts, anorexia, and haemorrhages. The cumulative mortality was significantly higher in the -C-E groups. The thiobarbituric acid-reactive substances value was significantly higher in blood plasma of fish fed a diet unsupplemented with both vitamins. The findings in the present study with yellow perch support the hypothesis that vitamin C regenerates and/or spares vitamin E in vivo.

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Section: Discussionmentioning

confidence: 75%

Interaction between vitamins C and E affects their tissue concentrations, growth, lipid oxidation, and deficiency symptoms in yellow perch (Perca flavescens)

Lee

Dąbrowski

2003

Br J Nutr

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“…Vitamin C nutrition of red drum was investigated in one study ( Collins 1990). Based on that study, retinal and lenticular lesions associated with a dietary vitamin C deficiency in red drum were characterized ( Collins et al . 1993 ).…”

Section: Introductionmentioning

confidence: 99%

Dietary vitamin C requirement of red drum Sciaenops ocellatus

Aguirre

Gatlin

1999

Aquaculture Nutrition

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A feeding trial was conducted to determine the minimum dietary vitamin C requirement of juvenile red drum and characterize signs of vitamin C de®ciency. Semipuri®ed diets containing 400 g crude protein kg ±1 from lyophilized red drum muscle and crystalline amino acids were used in the feeding trial. The basal diet without supplemental vitamin C contained » 6 mg vitamin C kg ±1 and was fed for a 1-week conditioning period. Red drum, initially averaging » 3.6 g each, were fed diets supplemented with 0, 10, 20, 30, 45, 60, 75, or 150 mg vitamin C kg ±1 as ascorbate polyphosphate for a period of 10 weeks. Fish fed the basal diet began to exhibit overt signs of vitamin C de®ciency, including reduced weight gain, lordosis, scoliosis and loss of equilibrium after 8 weeks. Total ascorbate was undetectable in liver of ®sh fed the basal diet while liver ascorbate levels in ®sh fed the other diets generally re¯ected dietary supplementation. Regression analysis of weight gain data using the broken-line model resulted in a minimum vitamin C requirement (SE) of 15 3 mg kg ±1 diet.

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“…The dynamic of the sway movement was analyzed owing to the stabilogram diffusion parameters proposed by Collins & de Lucas [8]. The computation of the stabilogram diffusion function for squatting showed a very small diffusion compared to standing and it was not possible to determine the two phases brought to light in standing condition.…”

Section: Resultsmentioning

confidence: 99%