Model and input data related to: Circularity in animal production requires a change in the EAT-Lancet diet in Europe

Repository contains input data for and model code to run the resource allocation model. The model is a linear optimisation model with an objective function to maximise human edible protein from livestock (dairy, beef, pigs, laying hens, broiler chickens, salmon and tilapia) while satisfying their nutritional requirements from a given availability of feed. The availability of feed is based on the low opportunity cost biomass (co-products, food waste, and grassland resources) produced from the EAT-LANCET diet and grasslands in the European Union 27 + United Kingdom. Two different availabilities of co-products and food waste are provided, one from the original EAT-LANCET diet and a second from a refined grain version of the EAT-LANCET diet. In addition the model can calculate the associated GHG emissions from livestock and steer livestock production to meet the animal-sourced food requirements of the EAT-LANCET diet.

本仓库涵盖运行资源分配模型所需的输入数据与模型代码。该模型为线性优化模型，其目标函数为最大化畜禽源人类可食用蛋白（涵盖奶牛、肉牛、生猪、蛋鸡、肉鸡、三文鱼及罗非鱼），同时基于给定的饲料可获得量满足畜禽的营养需求。饲料可获得量基于欧盟27国+英国境内由EAT-LANCET膳食（EAT-LANCET diet）与当地草原产生的低机会成本生物质，即副产品、食物废弃物及草原资源。本次提供两种不同的副产品与食物废弃物可获得量场景：一种源自原始EAT-LANCET膳食，另一种源自EAT-LANCET膳食的精制谷物版本。此外，本模型可计算畜禽养殖相关的温室气体（GHG）排放量，并可调控畜禽生产规模，以满足EAT-LANCET膳食对动物源食品的需求。