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Effects of Dietary Vitamins A, B-2, and B-6 Supplementation on Growth and Feed Utilization of Juvenile Chinese Soft-shelled Turtle Pelodiscus sinensis according to an Orthogonal Array Experiment

文献类型： 外文期刊

作者： Li, Junwei 1 ; Yang, Zhencai 2 ; Han, Xiaoling 2 ; Xie, Quansen 2 ; Liu, Haiyan 2 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr China, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China

2.Hebei Normal Univ, Coll Life Sci, Shijiazhuang 050024, Hebei Province, Peoples R China

关键词： Pelodiscus sinensis; vitamin; growth performance; digestion capacity; orthogonal design

期刊名称：ASIAN HERPETOLOGICAL RESEARCH （ 影响因子：1.827； 五年影响因子：1.412 ）

ISSN： 2095-0357

年卷期： 2016 年 7 卷 4 期

页码：

收录情况： SCI

摘要： An orthogonal experimental design OA(9) (3(3)) was used to evaluate the effects of vitamins (A, B-2, and B-6) on the growth and digestive ability of the juvenile Chinese soft-shelled turtle, Pelodiscus sinensis (initial weight, 5.9 +/- 0.2 g). A total of 135 turtles were divided into 9 groups, which each included 15 individuals. The results revealed that vitamin A (VA) had the strongest impacts on the growth rate and feed utilization among the three vitamins; 35,000 IU kg(-1) VA had optimal effects on the feeding intake and specific growth rate, and 20,000 IU kg(-1) VA had optimal effects on protein digestibility and the feed conversion ratio. Vitamin B-2 (VB2) was essential for regulating protein deposition and the energy efficiency for growth of the turtles; 120 mg k(-1) VB2 resulted in increased protein and energy deposition, and 180 mg kg(-1) VB2 had greater beneficial effects on the growth rate. Vitamin B-6 (VB6) had important effects on protein and feed efficiency; however, VB6 at an excessive level (120 mg kg(-1)) restricted turtle growth. Based on the above growth results, dietary supplementation of VA, VB2 and VB6 at levels of 35,000 IU kg(-1), 180 mg kg(-1) and 70 mg kg(-1), respectively, were recommended for the juvenile soft-shelled turtle.

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