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Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2006, Vol. 7 Issue (7 ): 11-    DOI: 10.1631/jzus.2006.B0580
    
Effects of ration level and feeding frequency on digestibility in juvenile soft-shelled turtle, Pelodiscus sinensis
LEI Si-jia
Department of Biotechnology, Shenzhen Polytechnic, Shenzhen 518055, China; Department of Biology, Tennessee Technological University, Cookeville, TN 38505, USA
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Abstract  The effects of ration level and feeding frequency on digestibility in juvenile soft-shelled turtle, Pelodiscus sinensis, were investigated. Four ration levels 1.5%, 2.5%, 4.0% and satiation (6.0% BW/d) were used. Apparent digestibility (AD) of dry matter (DMAD), protein (PAD) and protein real digestibility (PRD) were significantly affected by ration level, but not by feeding frequency when the ration level was similar. However, the feeding frequency affected the AD, DMAD, PAD and PRD significantly when the turtles were fed to satiation. The relationship between fecal protein content (Y) and protein intake (X) can be expressed as a quadric equation: Y=−0.1742+0.1476X−0.0003X2 (r2=0.876, n=27, F=93.92, P<0.01).

Key wordsDigestibility      Ration level      Feeding frequency      Juvenile soft-shelled turtle      Pelodiscus sinensis     
Received: 20 December 2005     
CLC:  S965.117  
Cite this article:

LEI Si-jia. Effects of ration level and feeding frequency on digestibility in juvenile soft-shelled turtle, Pelodiscus sinensis. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2006, 7(7 ): 11-.

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http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.2006.B0580     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2006/V7/I7 /11

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