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Effects of conventional versus organic production systems on amino acid profiles and heavy metal concentrations in the Chinese shrimp Penaeus chinensis

机译：传统和有机生产系统对中国对虾氨基酸谱和重金属浓度的影响

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摘要

Amino acid composition and heavy metal concentration were examined in organic and conventional Chinese shrimp Penaeus chinensis production systems during the production cycle. The crude protein and total amino acid contents for organic shrimp samples were 0.932 and 0.945 mg/g d.w., while they were 0.849 and 0.826 mg/g d.w., respectively, for conventionally produced samples. The ratios of essential amino acids to nonessential amino acids in organic and conventional cultured shrimp were 0.58 and 0.63, respectively. Shrimp samples from the conventional system were significantly richer in Cu (2.28 vs. 1.53 mg kg−1), Pb (0.13 vs. 0.08 mg kg−1), Cd (0.09 vs. 0.04 mg kg−1), and Zn (9.94 vs. 8.42 mg kg−1) when compared with those obtained from the organic system. It is concluded that organic shrimp production systems can produce comparable growth and nutritional quality benefits.
机译：在生产周期中，对有机和常规中国虾对虾生产系统中的氨基酸组成和重金属浓度进行了检查。有机虾样品的粗蛋白和总氨基酸含量分别为0.932和0.945 mg / g d.w.，而常规生产的样品分别为0.849和0.826 mg / g d.w.。有机和常规养殖虾中必需氨基酸与非必需氨基酸之比分别为0.58和0.63。传统系统中的虾样品中的Cu（2.28 vs. 1.53 mg kg -1 ），Pb（0.13 vs.0.08 mg kg -1 ），Cd（与从有机体系中获得的锌和锌相比，锌的含量分别为0.09和0.04 mg kg -1 以及0.04和8.42 mg kg -1 。结论是，有机虾生产系统可以产生可比的生长和营养品质效益。

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