Strategies for achieving environmental sustainability of protein production vary regionally. In this study, a framework was applied that would quantify a region-specific contribution to global protein supply with a special focus on protein quality i.e. essential amino acid composition. The framework was applied in Scotland and showed that high-quality human-edible protein from that region currently emerges mainly from animal production. Considering future protein scenarios, the land requirement for pulses for producing a certain amount of essential amino acids in Scotland would be similar to the land requirement for potentially human-edible feeds needed in cattle production. Reducing the current use of agricultural by-products in livestock feeding would considerably increase the land use demand for other, potentially human edible feed crops.

实现蛋白质生产的环境可持续性的策略因地区而异。在这项研究中，应用了一个框架，该框架将量化区域对全球蛋白质供应的特定贡献，特别侧重于蛋白质质量即必需氨基酸组成。该框架在苏格兰得到了应用，表明该地区的高质量人类食用蛋白质目前主要来自动物生产。考虑到未来的蛋白质状况，在苏格兰生产豆类所需一定数量必需氨基酸的豆类土地需求将类似于牛群生产中可能需要人类食用的饲料的土地需求。减少目前在牲畜饲料中使用农业副产品将大大增加对其他潜在人类食用饲料作物的土地利用需求。