淡水混养模式对南美白对虾养殖生态环境、营养品质与加工特性的变化OA

The integration of fish and shrimp in a mixed culture system can improve the utilization efficiency of re-sources and increase production yields.However,limited research has been conducted on its effects on the quality at-tributes and processing performance of aquatic products.This study aimed to investigate the impact of two different breeding systems—a monoculture of Penaeus vannamei and a mixed culture involving Ctenopharyngodon idellus—in a freshwater environment on water quality parameters,muscle quality characteristics,and processing properties.Differ-ences between the two systems were statistically analyzed using an independent samples t-test.The findings are ex-pected to contribute to theoretical support for optimizing the nutritional value and processing performance of cultured shrimp.The results of the study indicated that the average content of total nitrogen concentration in the mixed culture group was 0.09 mg/L in the middle and late stages,which was significantly lower than that in the monoculture group(0.19 mg/L,P<0.05).Additionally,the concentration of chlorophyll a in the mixed culture group was 28.00 μg/L in the later stage,higher than that in the monoculture group(4.67 μg/L,P<0.05).Regarding mus-cle composition,The ratio of(∑DAA/∑TAA)of shrimp in the mixed culture group was consistently higher than that in the monoculture group by 8.20%-12.60%throughout the whole process(P<0.05).Furthermore,The content of(∑PUFA)of shrimp in the mixed culture group was3.14 g/100g in the later stage,significantly higher than that in the monoculture group(2.00 g/100g,P<0.05).In terms of processing characteristics,the cooking loss rate of shrimp in the later stage of breeding in the mixed culture group was 27.31%,lower than that in the monoculture group(29.67%,P<0.05).Comparing with the monoculture mode,the mixed culture mode can not only signifi-cantly improve the breeding ecological environment,but also significantly improve the breeding efficiency,as well as the nutritional value and processing characteristics.The research results can provide a scientific and effective refer-ence for breeding high-quality shrimp.[Chinese Fishery Quality and Standards,2025,15(1):37-47].