Effects of photovoltaic fishery breeding mode on the growth performance and muscle quality of Procambarus clarkii

doi:10.14088/j.cnki.issn0439-8114.2026.06.025

Abstract

Abstract: This study conducted a comparative analysis of the growth performance and muscle quality of red swamp crayfish (Procambarus clarkii) under the photovoltaic fishery breeding mode (PM) and the conventional pond culture mode (CM). Juvenile crayfish with an initial body weight of (5.50±0.55) g were selected as the research subjects and were reared for 60 days in three photovoltaic ponds with a 70% shading rate (PM group) and three conventional ponds (CM group), respectively. The results showed that the final average body weight of crayfish in the PM group was significantly higher than that in the CM group (P<0.05). The crude lipid content in the muscle of the PM group was significantly higher than that in the CM group (P<0.05), while the crude ash content was significantly lower (P<0.05). No significant difference was observed in the crude protein level between the two groups (P>0.05). The contents of tartaric acid and shikimic acid in the muscle were significantly higher in the PM group (P<0.05), whereas the citric acid content was extremely significantly higher in the CM group (P<0.01). The total fatty acids, total unsaturated fatty acids, monounsaturated fatty acids, and the n-3/n-6 PUFA ratio in the muscle of the PM group were all significantly higher than those in the CM group (P<0.05). Heavy metal contents (such as arsenic and cadmium) in the muscle of the PM group were below the national standard limits. In contrast, the contents of multiple heavy metals (including vanadium, chromium, manganese, nickel, arsenic, cadmium, lead, and thorium) in the muscle of the CM group were significantly higher than those in the PM group (P<0.05). In conclusion, the photovoltaic fishery breeding mode enhanced the growth performance of Procambarus clarkii, improved muscle nutritional components, and increased the muscle nutritional value.

Key words: Procambarus clarkii, photovoltaic fishery breeding model, growth performance, muscle quality

CLC Number:

S966.12

ZHANG Sheng-yu, ZHANG Meng-hua, HUANG Yu-zhou, TAN Bing-jun, YANG Wen-bo, PENG Jun-lin, LIU Shi-yu, TONG Bo-yang, ZOU Wen, YUAN Yong-chao. Effects of photovoltaic fishery breeding mode on the growth performance and muscle quality of Procambarus clarkii[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(6): 154-161.

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