The increased request for poultry meat and eggs of a rising human population requires more efficient and cleaner methods to manage increasing quantities of chicken manure. The black soldier fly Hermetia illucens is known as an efficient bio-converter of organic waste in proteins and fats, with the advantage that the larval frass is supposed to have compost-like properties. In the view to identify the operating conditions for the sustainable management and valorization of livestock waste at a pre-industrial scale, this study is aimed at: i) optimizing the growth of H. illucens on a mixture of chicken manure, chabazite and water; ii) assessing the soil amendment properties of the larval frass obtained from the optimized mixture. Preliminary trials allowed defining the basic rearing conditions in terms of temperature and substrate components. A mixture design based on a special cubic model allowed identifying the best mixture for H. illucens larvae growth, which consists in 34.5% chicken manure, 58.3% water and 7.2% coarse chabazite. This mix led to about 86% of alive prepupae weighting 90 mg on average, and to a reduction of the initial substrate amount by more than 75%. The larval frass obtained from this mixture showed soil improver properties, suggesting its use to supply the common peat based growing media for potted baby-leaf lettuce production. Overall, H. illucens larvae have proved to be a useful tool to favor a more sustainable management of chicken manure by strongly reducing its amount and closing its recovery cycle obtaining high value products for agricultural purposes.

人口增长对家禽肉和蛋的需求增加，需要更有效，更清洁的方法来管理越来越多的鸡粪。黑士兵苍蝇Hermetia illucens被公认为是蛋白质和脂肪中有机废物的有效生物转化剂，其优点是，幼虫菜渣具有堆肥性质。为了确定在工业化前规模对牲畜废物进行可持续管理和增值的操作条件，本研究旨在：i）优化H. illucens的生长在鸡粪，菱沸石和水的混合物上；ii）评估从优化混合物中获得的幼虫fr的土壤改良特性。初步试验允许根据温度和基材成分定义基本饲养条件。基于特殊立方模型的混合物设计可以识别出适用于illucens幼虫生长的最佳混合物，其中包括34.5％的鸡粪，58.3％的水和7.2％的粗菱沸石。这种混合导致约86％的活产前幼虫平均重90 mg，并使初始底物量减少了75％以上。从这种混合物中获得的幼虫菜渣显示出土壤改良剂的特性，表明其可用于为盆栽的婴儿生菜生产提供基于泥炭的常见生长培养基。总体，事实证明，H。illucens幼虫通过大力减少鸡粪的数量并结束其回收周期，获得有利于农业的高价值产品，成为促进鸡粪更可持续管理的有用工具。