Cattaneo Arianna, Belperio Simona, Sardi Luca, Martelli Giovanna, Nannoni Eleonora, Meneguz Marco, Dabbou Sihem
Center Agriculture Food Environment (C3A), University of Trento, 38098 San Michele All'Adige, Italy.
Department of Veterinary Sciences (DIMEVET), University of Bologna, 40064 Ozzano dell'Emilia, Italy.
Insects. 2024 Oct 18;15(10):817. doi: 10.3390/insects15100817.
The insect farming sector is expanding, but knowledge of insect welfare is still limited. This article aims to optimize the dietary regime for "black soldier fly" ( L., BSF) larvae by applying a holistic view of welfare. Four diets were tested: control (CONTR, commercial laying hen feed), vegetable (VEG), omnivorous (OMN), and carnivorous (MEAT) diet, conducting experiments at a large (2000 larvae) and small scale (100 larvae). Rearing parameters were calculated including the growth rate, substrate reduction, efficiency of conversion of digested food, waste reduction index, and survival rate. Chemical analyses were conducted on BSF larvae and the residual frass. While the MEAT diet appears to be non-well-performing for the larvae, the VEG diet performed comparably to the control diet. Interestingly, the OMN diet demonstrated improved efficiency when evaluating the growth process at both scales. The chemical composition of larvae and frass highlighted the nutritional adequacy of the OMN diet, with the BSF larvae showing adequate protein and lipid content without nutrient catabolism or signs of discomfort. Applying the five freedoms of Brambell's report as a welfare standard for animal rearing and evaluating performance as an indirect indicator of welfare, the OMN diet appears to promote larval welfare in rearing practices.
昆虫养殖行业正在扩张，但对昆虫福利的了解仍然有限。本文旨在通过应用整体福利观来优化“黑水虻”（Hermetia illucens L.，BSF）幼虫的饮食方案。测试了四种饮食：对照（CONTR，商业蛋鸡饲料）、素食（VEG）、杂食（OMN）和肉食（MEAT）饮食，并在大规模（2000只幼虫）和小规模（100只幼虫）下进行实验。计算了饲养参数，包括生长速率、底物减少量、消化食物转化效率、废物减少指数和存活率。对黑水虻幼虫和残留粪便进行了化学分析。虽然肉食饮食对幼虫来说表现不佳，但素食饮食的表现与对照饮食相当。有趣的是，在评估两个规模的生长过程时，杂食饮食都表现出更高的效率。幼虫和粪便的化学成分突出了杂食饮食的营养充足性，黑水虻幼虫显示出足够的蛋白质和脂质含量，没有营养物质分解代谢或不适迹象。将布兰贝尔报告中的五项自由作为动物饲养的福利标准，并将性能评估作为福利的间接指标，杂食饮食似乎在饲养实践中促进了幼虫福利。
