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Effects of Cultivation Models on Growth, Fatty Acid Value and Texture of Pelodiscus sinensis
ZHUWeiguo, WANGFen, CHENZhu, SONGGuangtong, XUXiaona, ZHOUXiang, SUYoufeng, ZHUChengjun, FANGGuoxia, WUHao, WANGMei, JIANGYelin
Chin Agric Sci Bull ›› 2025, Vol. 41 ›› Issue (24) : 144-150.
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Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
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Effects of Cultivation Models on Growth, Fatty Acid Value and Texture of Pelodiscus sinensis
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.
cultivation model / Chinese soft-shelled turtle / growth performance / fatty acid / texture
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Fish is a healthy food, rich in quality animal proteins, polyunsaturated fatty acids especially the (ω)-3 eicosapentaenoic acid and docosahexaenoic acid and micronutrients. In addition, fish are more available and affordable than other sources of animal proteins in tropical countries. Aquaculture, which is one of the fastest growing food production sectors, could play a big role in eradicating hunger, malnutrition and nutrient-deprivation globally. However, nutritional information on fish is necessary for utilization of fish in achieving nutritional security and will be helpful in prioritizing species for aquaculture. In this context, we have studied the detailed nutritional composition of selected fishes from India and developed a database (http://www.cifri.res.in/nutrifishin/index.php) with the food data generated. This review explore the implications of such nutritional information in consumer guidance, dietary counselling, food-policy planning and prioritization of species for aquaculture to fight hunger, malnutrition and micronutrient deficiency; ultimately contributing to food and nutritional security.Copyright © 2017 Elsevier Ltd. All rights reserved.
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