Literaturdatenbank
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Huang, C.-H., & Lin, W.-Y. (2003). Estimation of optimal dietary methionine requirement for softshell turtle, pelodiscus sinensis. Aquaculture, 207(3), 281–287.
Added by: Admin (14 Aug 2008 20:36:23 UTC) |
| Resource type: Journal Article BibTeX citation key: Huang2003a View all bibliographic details  |
Categories: General Keywords: Ernährung = nutrition, Pelodiscus, Pelodiscus sinensis, Schildkröten = turtles + tortoises, Trionychidae, Trionyx Creators: Huang, Lin Collection: Aquaculture |
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| Abstract |
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Trionyx Abstract: A growth experiment was conducted to determine the optimal level of dietary methionine for softshell turtle, Pelodiscus sinensis. Five experimental diets analyzed to contain 0.67% to 1.24% of methionine were fed to juvenile softshell turtle with 3.2 g initial body weight for 8 weeks. The dietary protein and estimated metabolizable energy contents were 41.5% and 3.34 kcal/g, respectively. Weight gain (WG) of the turtle fed the diet containing 0.67% methionine was significantly lower than those fed diets containing 0.81% and 1.07% methionine (P<0.05). Feed conversion ratio (FCR) and protein efficiency ratio (PER) showed similar trends to that of WG. No significant difference (P>0.05) was found in body composition among turtles fed the different diets. Using a second-order polynomial regression analysis of WG and FCR on level of dietary methionine, the optimal dietary methionine content was 1.03% of diet or 2.48% of dietary protein when cystine content was 0.25% of diet or 0.60% of dietary protein.
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