政府间气候变化专门委员会高估了韩国猪每年排泄的气量
Donghyeon Lee1, Hansol Kim2, Jongkeon Kim1,3
1Konkuk University, Seoul, Korea.
Animal bioscience
|October 24, 2025
概括
这项研究发现,政府间气候变化专门委员会 (IPCC) 过高估计了韩国猪的排泄量 (Nex). 韩国猪的实际年Nex为8.23公斤/年,远低于IPCC的估计.
科学领域:
- 动物科学动物科学
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 精确估计来自牲畜的排泄量 (Nex) 对环境管理至关重要.
- 政府间气候变化专门委员会 (IPCC) 为估计Nex提供了指导方针,但需要进行区域验证.
研究的目的:
- 为了验证IPCC对猪的代表性体重 (BW) 和年度分泌量 (Nex) 值.
- 为了估计韩国猪业内猪的实际年度Nex.
主要方法:
- 确定干物和的表面总通道消化率 (ATTD) 和杂交的便重量比.
- 开发了每日BW,料摄入量和便分泌量的模型,以计算代表性的BW.
- 根据ATTD,N摄入量和人口数据计算每日和年度便和尿液Nex.
主要成果:
- 市场猪的代表性BW被计算为35.3公斤在85天的年龄.
- 每日总Nex为20.9g/天,导致市场猪的年Nex为7.6kg/年,母猪的年Nex为14.5kg/年.
- 据估计,韩国猪业的年度Nex总量为8.23公斤/年,远低于IPCC估计的18.0公斤/年.
结论:
- 国际气候变化专门委员会对韩国代表性猪体和排泄的估计是高估的.
- 验证的韩国猪年Nex为8.23公斤/年,这突显了环境评估中需要区域特定数据的需要.
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