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Chu, J. H., Chen, S. M., & Huang, C.-H. (2007). Effect of dietary iron concentrations on growth, hematological parameters, and lipid peroxidation of soft-shelled turtles, pelodiscus sinensis. Aquaculture, 269(1-4), 532–537. 
Added by: Sarina Wunderlich (28 Dec 2008 22:35:32 UTC)
Resource type: Journal Article
DOI: 10.1111/j.1365-2095.2008.00567.x
BibTeX citation key: Chu2007
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Categories: General
Keywords: Ernährung = nutrition, Pelochelys, Pelodiscus, Pelodiscus sinensis, Schildkröten = turtles + tortoises, Trionychidae
Creators: Chen, Chu, Huang
Collection: Aquaculture
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Soft-shelled turtles, Pelodiscus sinensis, with an average weight of 5.55 g, were fed diets supplemented with eight levels of ferrous sulphate for 8 weeks. The analysed iron content ranged from 50.8 to 482.9 mg kg−1. Growth rate of turtles fed the control diet with no iron supplementation was the lowest among all dietary groups. Haematological parameters including red blood cell, haemoglobin, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration of the turtles fed the control diet were also significantly (P < 0.05) lower relative to the other groups. Thus, dietary iron at 50.8 mg kg−1 (no supplemented iron) was deemed deficient for growth and ineffective at preventing anaemia in juvenile soft-shelled turtle. Whereas, a supplementation of 50 mg kg−1 ferrous sulphate (a total dietary iron of 91.8 mg kg−1) was enough to normalize the haematological values of soft-shelled turtles to the level similar to other iron supplement-fed groups. Within the tested dietary iron range, liver iron content curve-linearly (r2 = 0.99) increased with increasing dietary iron level. Furthermore, thiobarbituric acid-reactive substances in liver tissues of the turtles have also increased when liver iron content increased. The dietary iron requirement of soft-shelled turtle is 120–198 mg kg−1 when ferrous sulphate is used as the source of iron.

ferrous • haematology • iron requirement • lipid peroxidation • soft-shelled turtle
Added by: Sarina Wunderlich  
Added by: Sarina Wunderlich  
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