The Bokashi leachate (BL) is a by-product from the anaerobic digestion of food waste, following the Bokashi composting method. Bokashi leachate is acidic and it contains effective microorganisms hence it has potential to be a functional feed additive to the plant proteins based diets for fish farming. This study evaluated the growth performance and feed utilization of the red tilapia (Oreochromis sp.) fingerlings fed with the BL supplemented soybean meal (SBM) based diets. After an 8-week feeding trial, fish fed with the 5% BL supplemented SBM diet attained the highest weight gain. This result was significantly higher (p<0.05) than those fed with the 0% BL supplemented SBM diet, and comparable (p>0.05) to those fed with the control full fish meal (FM) diet. Generally, dietary inclusion of BL enhanced the fish feed intake on the SBM diet but it did not show clear sign of improvement in their feed utilization. In addition, no significant difference was found across the hepatosomatic index and viscerosomatic index from all dietary treatments. These outcomes concluded that dietary inclusion of BL can enhance the feed intake and growth performance of the red tilapia fingerlings fed with the SBM based diet without compromising their health, and the optimum BL inclusion level was 5%. Nevertheless, further study on the properties and substances content of the BL produced from different types and ratios of food waste is strongly recommended. In this study, BL was also discovered to be capable of reducing the crude fiber content in the SBM diets. Such observation deserves a further exploitation on the application of BL to manipulate the crude fiber content in the plant proteins based diets in fish farming.

Bokashi渗滤液（BL）是按照Bokashi堆肥方法厌氧消化厨余产生的副产品。博卡西渗滤液是酸性的，它含有有效的微生物，因此有潜力成为鱼类养殖中以植物蛋白为基础的饲料的功能性饲料添加剂。这项研究评估了以BL补充豆粕（SBM）为基础的日粮喂养的红罗非鱼（Oreochromis sp。）鱼种的生长性能和饲料利用率。经过为期8周的喂养试验，以5％BL补充SBM饮食喂养的鱼体重增加最高。该结果显着高于（p <0.05）（0％BL补充SBM饮食喂养的婴儿），并且具有可比性（p> 0.05），以对照全鱼粉（FM）饮食喂养的人。通常，在日粮中添加BL可以增加SBM日粮的鱼饲料摄入量，但没有显示出饲料利用率提高的明显迹象。另外，在所有饮食治疗中，肝体指数和内脏体指数没有发现显着差异。这些结果表明，膳食中添加BL可以提高以SBM饲料喂养的红罗非鱼鱼种的采食量和生长性能，而不会损害其健康，并且BL的最佳添加水平为5％。但是，强烈建议进一步研究由不同类型和比例的食物垃圾产生的BL的性质和物质含量。在这项研究中，还发现BL能够降低SBM日粮中的粗纤维含量。