Comparative Analysis of Nutrients and Mineral Element Contents in Muscles of Pelodiscus sinensis Raised in a Paddy Field and on a Factory Farm
Comparative Analysis of Nutrients and Mineral Element Contents in Muscles of Pelodiscus sinensis Raised in a Paddy Field and on a Factory Farm
Lingyun Yu1, Kunhao Hong1, Qiaoyan Zhou1, Jie Wei1, Rui Liang2,
Mulian Wei2 and Xinping Zhu1* and Yakun Wang1*
ABSTRACT
The aim of this study was to investigate the nutritional value of muscles of the soft-shell turtle, Pelodiscus sinensis, raised in a paddy field and on a factory farm. The study revealed that crude protein and moisture contents in the muscle tissue from turtles raised in a paddy field were considerably lower and considerably higher, respectively, compared to those from turtles raised on a factory farm (p < 0.01). Furthermore, 16 amino acids, 14 fatty acids, and 10 mineral elements were detected in the muscle tissues from the turtles of the two farming methods. The muscle tissues of both groups of turtles contained available protein sources. PUFAs (p < 0.05) and total unsaturated fatty acid contents, iron, and copper (p < 0.01) were significantly higher, whereas phosphorus levels were significantly lower (p < 0.05) in turtles raised in a paddy field than in those raised on a factory farm. This study provides fundamental information for development and utilisation of agricultural resources and turtle resources.
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