一种尺寸不适合所有人:在系统中,是否有任何可持续的替代品可替代大豆?
James Chege Wangui1, James David Taylor1, Harry Barraza2
1Institute for Global Food Security, Queen's University Belfast, Belfast, United Kingdom.
Poultry science
|October 18, 2025
概括
可持续的肉饮食需要替代大豆. 这项研究结合了元分析和生命周期评估来评估替代蛋白质,发现没有单一的选择可以有效地平衡性能和环境影响.
科学领域:
- 动物科学动物科学
- 环境科学 环境科学
- 可持续农业 可持续农业
背景情况:
- 在 brojiler饮食中过度依赖大豆粉带来了可持续性挑战.
- 对替代蛋白质的整体评估受限于单独关注性能或环境影响的研究.
研究的目的:
- 系统地评估循环生物经济衍生的替代蛋白质,用于肉的饮食.
- 将绩效指标与生命周期评估 (LCA) 结合起来进行综合分析.
- 为了确定最佳的替代蛋白质,平衡肉的性能和环境可持续性.
主要方法:
- 在20年间对102项研究进行了系统审查和元分析.
- 使用混合效应模型分析的绩效指标 (ADFI,ADG,FCR,消化能力,死亡率).
- 生命周期评估 (LCA) 将表现最好的替代品 (微藻,PAP,DDGS) 与大豆饮食进行比较.
主要成果:
- 性能指标显示了与蛋白质类型,含量水平和肉菌株的复杂相互作用,因年龄而异.
- 所有替代品的含量水平较高时,乳腺消化能力下降.
- 生命周期评估揭示了各种环境影响:微藻增加了大多数影响,PAP增加了陆地酸化,DDGS对肥料产生了负面影响.
- 观察到对替代蛋白质 (PAP,DDGS,种子) 的区域偏好.
结论:
- 没有任何一种单一的替代蛋白质可以普遍优化肉的性能和环境可持续性.
- 选择替代蛋白质需要平衡营养需求与特定的环境考虑.
- 未来的研究应该专注于可持续肉料配方的特定环境解决方案.
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