在商业环境下从皮埃特林父系的瘦猪中减少食蛋白质:效率和肉类属性之间的相互作用
Javier Álvarez-Rodríguez1, Alba Vigo-Morancho2, Francisco Javier Miana-Mena3
1Departamento de Producción Animal y Ciencia de los Alimentos, Escuela Politécnica Superior, Universidad de Zaragoza-CITA-IA2, Huesca, Spain.
Animal science journal = Nihon chikusan Gakkaiho
|February 2, 2025
概括
在猪食中减少原蛋白 (CP) 改善了 (N) 平衡,但没有影响生长. 然而,它略微降低了营养的消化能力和改变了肉质,对血液标记物有性别特异的影响.
科学领域:
- 动物营养 动物营养
- 猪生产 生产 猪生产
- 环境科学 环境科学
背景情况:
- 饮食原蛋白 (CP) 减少正在探索,以最大限度地减少牲畜中的 (N) 排泄.
- 在降低CP以保持动物表现时,优化氨基酸概况至关重要.
研究的目的:
- 为了评估饮食中减少的CP对成绩,N平衡和最终瘦猪的营养消化能力的影响.
- 评估对血液标志物,尸体和肉质的影响,考虑到性别差异.
- 探索对猪的环保养策略.
主要方法:
- 用瘦猪 (90-120公斤) 进行养试验,将标准CP饮食 (14.8%) 与减少CP饮食 (12.6%) 与必需氨基酸 (AA) 补充相比较.
- 评估生产性能,平衡,血液参数,营养消化能力,尸体和肉质.
- 分析结果,考虑完整的男性和女性.
主要成果:
- 低CP饮食并没有影响生长性能.
- 的分泌量显著降低.
- 大多数营养素的明显消化能力不受影响,除外.
- 在血清尿素和总蛋白质水平 (男性减少) 中观察到性别特异性差异.
- 由于水分含量增加,肉类的营养质量下降,而技术特性没有受到影响.
结论:
- 在加工猪的饮食中限制CP可以减少N排泄,而不会影响生长性能.
- 需要仔细的AA平衡,并需要考虑对消化能力和肉质的潜在影响.
- 为了可持续的,高性能的生猪生产,需要进一步研究适合性别的养策略.
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