ISSN:
1365-2095
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
The study was conducted to determine the effect of dietary supplementation of vitamin C on anti-acid stress ability in juvenile soft-shelled turtle. The soft-shelled turtles were fed vitamin C supplemented diets at levels of 0, 250, 500, 2500, 5000 and 10 000 mg kg−1 for 4 weeks. The results showed that the phagocytic rate of blood cell in the group fed vitamin C deficient diets, the serum bacteriolytic activity in the two groups fed vitamin C supplemented diet at 0 and 250 mg kg−1 and the serum bactericidal activity in all groups after acid stress significantly decreased compared with those of before stress (P 〈 0.1). The phagocytic rate of blood cells in the two groups fed vitamin C supplemented diet at 2500 and 5000 mg kg−1 were significantly higher than those of the four groups fed at 0, 250, 500 and 10 000 mg kg−1 (P 〈 0.01). The serum bacteriolytic activity in the groups fed vitamin C supplemented diet at 500, 2500, 5000 and 10 000 mg kg−1 were significantly higher than that of the group fed vitamin C deficient diets (P 〈 0.05), and the two groups fed vitamin C at 2500 and 5000 mg kg−1 were significantly higher than those of the groups fed at 250 and 10 000 mg kg−1 (P 〈 0.05). The serum bactericidal activities in the four groups fed vitamin C supplemented diet at 500, 2500, 5000 and 10 000 mg kg−1 were significantly higher than those of the two groups fed at 0 and 250 mg kg−1 diet (P 〈 0.01), and the two groups fed vitamin C at 2500 and 5000 mg kg−1 were significantly higher than those of the two groups fed at 500 and 10 000 mg kg−1 (P 〈 0.1). These results suggest that supplementation of vitamin C higher than 250 mg kg−1 is necessary to reduce the adverse effects of acid stress.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2095.2005.00343.x
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