补充可以被微生物植物酶完全取代在白色莱戈恩层的饮食中
S V Rama Rao1, N Hulegondi2, Anusha Savaram2
1Nutrition, ICAR - Directorate of Poultry Research, Hyderabad, India.
British poultry science
|April 10, 2024
概括
微生物植物酶可以完全取代补充在白色莱戈恩层的饮食. 这种方法在28至45周的商业年龄层中保持了产卵性能,蛋质量和骨健康.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 营养生物化学 营养生物化学
背景情况:
- 补充对于层营养至关重要,但可能昂贵且对环境有影响.
- 微生物植物酶通过提高植物性料成分的的可用性提供了一个潜在的解决方案.
- 优化植物酶含量水平是减少对无机补充剂的依赖的关键.
研究的目的:
- 为了评估在白色莱戈恩层的饮食中,补充与微生物植物酶的完全替代.
- 评估不同水平的非植物酸 (NPP) 与植物酶对产卵性能和蛋质量的影响.
- 为了确定对商业层中的骨矿物质含量和完整性的影响.
主要方法:
- 一千只白色雷戈恩 (Leghorn) 层 (28-45周) 接受了减少NPP水平 (1.2至2.4g/kg) 的饮食,并补充了600 FTU/kg的微生物植物酶.
- 为了进行比较,使用了推的NPP (3.6g/kg) 的对照饮食.
- 测量了包括蛋生产,料效率,蛋质量参数和骨强度在内的关键绩效指标.
主要成果:
- 用微生物植物酶完全取代补充并没有对产卵性能,蛋质量或贝质量产生负面影响.
- 最低的NPP水平 (1.2g/kg) 与植物酶保持了与对照组相比的骨和胸骨灰含量和断裂强度.
- 植物酶补充剂在饮食中显著改善了低于最佳NPP水平 (1.6至2.4g/kg) 的豪格单位得分.
结论:
- 微生物植物酶 (600 FTU/kg) 可以完全替代补充在白色莱戈恩层饮食 (28-45周).
- 这一策略支持最佳的卵子生产,质量和骨矿化.
- 这些发现表明,一种成本效益高,可持续的层级营养方法.
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