石灰岩溶解度,食中的含量和植物酶剂量对肉生长性能,矿物质消化能力和利用率的独立和相互作用影响
A Bello1, C Kwakernaak2, R Davin2
1Danisco Animal Nutrition & Health, IFF, Willem Einthovenstraat 4, 2342 BH Oegstgeest, The Netherlands.
Poultry science
|February 12, 2026
概括
优化肉生长需要平衡石灰岩溶解度,水平和植物酶剂量. 高溶解性石灰岩,中等和高植物酶产生最好的结果,减轻过多的负面影响.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 料添加剂 料添加剂
背景情况:
- 食中的 (Ca) 和 (P) 对于肉的表现至关重要.
- 植物酶补充剂改善了P利用率,但可以与Ca和石灰岩来源相互作用.
- 石灰岩的溶解度会影响Ca的释放和可用性.
研究的目的:
- 研究石灰岩溶解度,饮食中的Ca度和植物酶剂量对肉生长,矿物质消化能力和骨矿化的影响.
- 为了确定这些因素的最佳组合,以提高肉的性能.
主要方法:
- 使用了一种随机的完整块设计,使用12种治疗方法.
- 因素包括两个石灰岩溶解度 (高和低),三个Ca水平和两个植物酶剂量 (500和1500 FTU/kg).
- 测量了生长性能,阴茎矿物消化能力 (AID) 和骨灰.
主要成果:
- 在石灰岩溶解度,Ca水平和植物酶剂量之间观察到对体重,体重增加和料摄入的相互作用.
- 增加饮食中的Ca降低了性能,而更高的植物酶剂量改善了它.
- 低溶性石灰岩 (LSL) 和高植物酶增加了P的消化能力,而高溶性石灰岩 (HSL) 降低了Ca的消化能力.
- 最佳的生长是通过LSL,中等Ca和1,500 FTU/kg植物酶实现的.
结论:
- 牛肉的最佳性能取决于石灰岩溶解度,Ca水平和植物酶剂量的相互作用.
- 在HSL和高Ca的饮食中,增加的植物酶可以减轻负面影响并保持性能.
- 考虑这些因素的战略制定对于高效的 brojler 营养至关重要.
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