Livestock production systems

A spatially disaggregated global livestock dataset containing information on biomass use, production, feed efficiency, excretion, and greenhouse gas emissions for 28 world regions, 8 livestock production systems, 4 animal species (cattle, small ruminants, pigs, and poultry), and 3 livestock products (milk, meat, and eggs) for the year 2000. The dataset highlights: (i) feed efficiency as a key driver of productivity, resource use, and greenhouse gas emission intensities, with vast differences between production systems and animal products; (ii) the importance of grasslands as a global resource, supplying almost 50% of biomass for animals while continuing to be at the epicentre of land conversion processes; and (iii) the importance of mixed crop–livestock systems, producing the greater part of animal production (over 60%) in both the developed and the developing world. These data provide critical information for developing targeted, sustainable solutions for the livestock sector and its widely ranging contribution to the global food system.

本数据集为地理空间细分的全球畜牧业数据集，涵盖2000年全球28个区域、8类畜牧生产系统、4种动物品类（牛、小型反刍动物、猪及家禽）与3种畜牧产品（牛奶、肉类及蛋类）的生物质利用、生产、饲料转化率、畜禽排泄物及温室气体排放相关信息。该数据集揭示了三项核心结论：(1) 饲料转化率是影响生产力、资源利用效率与温室气体排放强度的关键驱动因素，不同生产系统与动物品类间存在显著差异；(2) 草原作为全球核心资源的重要性凸显：其为牲畜提供了近50%的生物质饲料，同时仍是土地转化进程的核心关注领域；(3) 农牧复合系统的关键作用突出：在发达国家与发展中国家，该系统均贡献了超60%的动物产品总产量。本数据集可为畜牧业制定精准化、可持续的解决方案提供关键支撑，同时助力阐明畜牧业对全球粮食系统的广泛贡献。