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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (24): 144-150.doi: 10.11924/j.issn.1000-6850.casb2025-0022

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Effects of Cultivation Models on Growth, Fatty Acid Value and Texture of Pelodiscus sinensis

ZHU Weiguo1(), WANG Fen2(), CHEN Zhu2, SONG Guangtong2, XU Xiaona2, ZHOU Xiang2, SU Youfeng3, ZHU Chengjun4, FANG Guoxia5, WU Hao6, WANG Mei7, JIANG Yelin8   

  1. 1 Jinshen Town Agriculture and Rural Development Center of Tongcheng City, Anqing, Anhui 231400
    2 Key Laboratory of Aquaculture and Stock Enhancement for Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031
    3 Tongcheng Sushi Agricultural Development Co., Anqing, Anhui 231440
    4 Anhui Engineering Research Center for Turtle Farming Technology, Anhui Xijia Agricultural Development Co. Ltd., Bengbu, Anhui 233701
    5 Anhui Jie & Xiang Aquaculture Co. Ltd, Hefei 231251
    6 Anhui Tianman Agricultural Technology Co., Ltd., Hefei 231252
    7 Jingde County Youxian Ecological Turtle Breeding Co. Ltd., Xuancheng, Anhui 242605
    8 Anhui Yutao Agricultural Technology Co., Hefei 230031
  • Received:2025-01-03 Revised:2025-05-12 Online:2025-08-25 Published:2025-09-05

Abstract:

In order to study the effects of cultivation models on the growth, nutrition and taste of Chinese soft-shelled turtles (Pelodiscus sinensis), P. sinensis cultured in two different modes (paddy-field cultivation and pond intensive cultivation) were used to evaluate the growth performance, fatty acid nutrition and taste. The results showed that in paddy-field cultivation model, the specific growth rate (SGR) of P. sinensis was significantly higher than that in intensive pond culture by 82% (P<0.05), and the feed coefficient (FCR) was significantly reduced by 8% (P<0.05). The fatty acid nutritional value of P. sinensis was high in both cultivation models. In pond intensive cultivation model, the ratios of SFA/TFA (40.63%), PUFA/SFA (0.777:1), and SFA/MUFA/PUFA (1.28:0.86:1.00), as well as the AI, TI, and HH (0.500, 0.212, 2.087) in muscle were better than those in paddy-field cultivation model. Texture analysis revealed that the hardness, gumminess and chewiness of muscles and calipash of P. sinensis cultured in paddy-field cultivation model were significantly higher than in the pond-intensive model, whereas there were no significant differences in adhesiveness, resilience and springiness. In summary, the growth performance of P. sinensis under paddy field cultivation model was better and the muscle was chewy. And in pond-intensive cultivation model, the fatty acid nutritional value was higher and the muscle was tender and juicy.

Key words: cultivation model, Chinese soft-shelled turtle, growth performance, fatty acid, texture