Black soldier fly (Hermetia illucens) has gained attention as a sustainable novel protein source in fish feed due to its high nutritional value and low environmental impacts. In the past decade, effects of the use of black soldier fly in aquafeeds have widely been studied in salmonids. A meta-analysis was conducted to compile and systematically quantify the effect of black soldier fly in diets for salmonids on growth performance and nutrient utilization. The main meta-analysis showed that dietary inclusion of black soldier fly did not compromise the specific growth rate, feed conversion ratio, feed intake, protein digestibility and protein efficiency ratio in salmonids. A meta-regression was conducted to explore the possible causes of variation in growth rate, feed conversion ratio and feed intake between the studies. Fish species, protein source(s) replaced and black soldier fly inclusion level were partially responsible for the variation in growth rate between the studies. The protein source(s) replaced and black soldier fly inclusion level partially explained the variation in feed conversion ratio and feed intake respectively. The sub-data sets sorted according to the replaced protein source(s) showed that replacing fishmeal by black soldier fly decreased growth rate and feed intake in salmonids, but replacing non-fishmeal sources improved growth rate and feed conversion. This strengthened the importance of the type of replaced protein source(s) when evaluating nutritional values of black soldier fly for salmonids. In conclusion, the present meta-analysis showed that black soldier fly is a promising protein source for salmonid feeds.

中文翻译：

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对黑水虻 (Hermetia illucens) 作为鲑鱼新型蛋白质来源的系统性荟萃分析综述

黑水虻( Hermetia illucens) 因其高营养价值和低环境影响而作为鱼饲料中可持续的新型蛋白质来源而受到关注。在过去十年中，在鲑鱼中广泛研究了在水产饲料中使用黑水虻的影响。进行了一项荟萃分析，以汇编和系统量化鲑鱼饲料中黑水虻对生长性能和养分利用的影响。主要荟萃分析表明，黑水虻日粮添加并未影响鲑鱼的比生长率、饲料转化率、采食量、蛋白质消化率和蛋白质效率比。进行元回归以探索研究之间生长速率、饲料转化率和采食量变化的可能原因。鱼类，蛋白质来源的替代和黑水虻的含量是研究之间生长速率变化的部分原因。替代的蛋白质来源和黑水虻的含量分别部分解释了饲料转化率和采食量的变化。根据替代的蛋白质来源分类的子数据集显示，用黑水虻替代鱼粉降低了鲑鱼的生长速度和采食量，但替代非鱼粉来源提高了生长速度和饲料转化率。在评估黑水虻对鲑鱼的营养价值时，这加强了替代蛋白质来源类型的重要性。总之，目前的荟萃分析表明，黑水虻是鲑鱼饲料的有前途的蛋白质来源。