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高效的猪并不总是对环境的影响较小:基于个体模型的见解,以评估环境,经济和技术性能

E Janodet¹, H Gilbert², L Brossard³

¹GenPhySE, Université de Toulouse, INRAE, ENVT, 31326 Castanet-Tolosan, France; PEGASE, INRAE, Institut Agro, 35590 Saint-Gilles, France.

Animal : an international journal of animal bioscience

|June 28, 2025

概括

这项研究开发了一种新的方法,通过观察单个猪,而不仅仅是群体,公平地评估养猪业对环境的影响. 它发现,料效率,蛋白质沉积和氨基酸需求是减少生猪生产环境足迹的关键.

科学领域:

动物科学动物科学
环境科学环境科学
农业经济学农业经济学

背景情况:

养猪业面临着重大的经济和环境挑战.
以前的环境影响评估经常使用集体养策略,忽视了猪个体的变化.
个体之间生长和营养需求的差异导致了不同的环境影响.

研究的目的:

开发一种方法方法,以公平地评估生产系统中猪个体的反应.
评估个体肥猪的技术,经济和环境性能.
为了识别影响传统法国养殖系统中对比的环境表现的猪特性.

主要方法:

利用732只大白雄的实验数据来调整生长概况 (InraPorc®) 和估计氨基酸 (AA) 需求.
基于模拟的个人资料生成了1000头猪的虚拟种群.
应用基于个体的技术性能建模,加上对环境影响 (气候变化,酸化等) 的生命周期评估 (LCA). 和经济评估.

主要成果:

根据环境和经济绩效确定了三个不同的猪群.
集群1表现出最佳的环境和经济结果,与低料转换率,低影响料和高蛋白沉积潜力 (PDm) 相关.
料效率,PDm和初始AA要求被确定为环境绩效的主要驱动因素,挑战了先前的群体养研究中仅仅依赖料效率的观点.

结论:

猪个体的特点,包括AA要求和PDm,对于准确评估和减轻生猪生产对环境的影响至关重要.
仅仅依靠料效率是不足以识别具有最低环境足迹的猪的.
开发的方法方法允许更公平地评估个体猪的表现及其对环境的影响.

关键词:

肥胖单位的肥胖单位个人模拟模拟.生命周期评估生命周期评估多功能的多功能.系统建模系统建模

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