肉养计划中特殊蛋白质成分对的利用和排泄的重要性-A元分析
Felix M Njeri1, Elijah G Kiarie1, Jennifer L Ellis1
1Department of Animal Biosciences, University of Guelph, Postal address: 50 Stone Road E, N1G 2W1 Guelph, ON, Canada.
Poultry science
|December 18, 2025
概括
经过加工的动物蛋白 (PAP) 和进一步加工的植物蛋白 (PVP) 是有效的 brojler 料成分,由于更好的消化能力,它们的性能优于昆虫蛋白 (IP) 和藻类. 这一元分析标准化了成分的有效性,以改善料配方.
科学领域:
- 动物营养和料科学 动物营养和料科学
- 农业科学 农业科学
- 可持续的蛋白质来源 可持续的蛋白质来源
背景情况:
- 特殊蛋白质成分 (SPI) 如加工动物蛋白 (PAP),昆虫蛋白 (IP),藻类和进一步加工的植物蛋白 (PVP) 越来越多地用于肉的饮食.
- 在研究中,原蛋白 (CP) 摄入量和SPI含量水平的变化使对肉生产绩效的影响的比较变得复杂.
- 为了优化 brojiler料配方,需要对成分疗效进行标准化比较.
研究的目的:
- 进行一项元分析,比较肉饮食中不同特种蛋白成分 (SPI) 的疗效.
- 用混合效应元回归模型调整原蛋白 (CP) 摄入量和SPI含量水平的性能反应.
- 为了测试PVP和PAP与大豆粉 (SBM) 的性能相似,并且优于IP和藻类的假设.
主要方法:
- 一个元分析整合了53项同行评审研究的数据.
- 采用混合效应元回归模型 (PROC GLIMMIX, SAS),将研究作为随机效应,SPI类型和CP摄入量作为固定效应.
- 模型预测包括平均每日增益 (ADG),平均每日料摄入量 (ADFI),料转换比率 (FCR) 和平衡.
主要成果:
- 在初始和种植阶段,PVP,PAP和SBM导致最高的ADG和减少分泌 (8-15%).
- 在完成阶段,SBM表现最高,PVP和PAP表现相似.
- 藻类和IP在更高的摄入量水平上显示出二次性性能下降,IP特别受到10%以上的纳入影响. 在完成阶段,PAP显示效率有所下降.
结论:
- PVP和PAP是肉饮食中有效的替代蛋白质来源,与SBM相似.
- 藻类和IP的高含量水平不太适合,因为蛋白质质量和消化能力较低.
- 结果为料配方提供了定量基础,并突出了改善IP和藻类蛋白质质量的未来研究领域.
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