Junwei LI,Zhencai YANG,et al.Effects of Dietary Vitamins A, B2, and B6 Supplementation on Growth and Feed Utilization of Juvenile Chinese Soft-shelled Turtle Pelodiscus sinensis according to an Orthogonal Array Experiment[J].Asian Herpetological Research(AHR),2016,7(4):278-286.[doi:10.16373/j.cnki.ahr.160005]
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Effects of Dietary Vitamins A, B2, and B6 Supplementation on Growth and Feed Utilization of Juvenile Chinese Soft-shelled Turtle Pelodiscus sinensis according to an Orthogonal Array Experiment
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2016 VoI.7 No.4
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Effects of Dietary Vitamins A, B2, and B6 Supplementation on Growth and Feed Utilization of Juvenile Chinese Soft-shelled Turtle Pelodiscus sinensis according to an Orthogonal Array Experiment
Junwei LI1 2 Zhencai YANG2* Xiaoling HAN2 Quansen XIE2 and Haiyan LIU2
1 Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization of Ministry of Agriculture of China, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
2 College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
Pelodiscus sinensis vitamin growth performance digestion capacity orthogonal design
An orthogonal experimental design OA9 (33) was used to evaluate the effects of vitamins (A, B2, and B6) 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 B2 (VB2) was essential for regulating protein deposition and the energy efficiency for growth of the turtles; 120 mg kg-1 VB2 resulted in increased protein and energy deposition, and 180 mg kg-1 VB2 had greater beneficial effects on the growth rate. Vitamin B6 (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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Last Update: 2016-12-25