饮食多酶对生长性能,消化酶活性,营养物质消化能力,排泄物有害气体排放和营养物质输送基因表达在白羽毛肉中的影响
Wuzhou Yi1,2,3, Qixin Huang1, Yanjie Liu4
1College of Animal Sciences, Zhejiang University, Hangzhou, China.
Journal of animal science
|May 11, 2024
概括
在 brojiler料中食多酶补充改善了料转换率和欧洲 brojiler指数. 这种营养策略增强了营养物质的吸收,并减少了排泄物的有害气体排放.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 家禽料中的多酶是一种营养策略,可以提高性能和健康.
- 关于多酶对肉生长的确切有益影响存在争论.
- 了解多酶对营养利用和环境影响的影响至关重要.
研究的目的:
- 调查饮食多酶补充剂对肉生长表现的影响.
- 评估对尸体特征,营养物质消化能力和气体排放的影响.
- 分析肠道营养物质载体基因表达的变化.
主要方法:
- 3200只肉被随机分配到五个饮食组:对照组和四个多酶补充剂水平 (100-250g/t).
- 评估了生长性能,尸体特征,营养物质消化能力和排泄物气体排放 (氨,硫化).
- 测量了关键营养物质运输基因 (PePT1,B0AT,GLUT2,FABP1) 的mRNA表达.
主要成果:
- 多酶补充剂显著改善了料转换率和欧洲肉指数.
- 显而易见的代谢能量和中性洗剂纤维消化能力受到显著影响.
- 排泄氨和硫化排放量显著减少.
- ,氨基酸,葡萄糖和脂肪酸载体的mRNA表达明显升高.
结论:
- 食多酶可以提高料利用效率和肉的营养消化/吸收.
- 多酶补充剂有效地减少了家禽便的有害气体排放.
- 这项研究为优化在肉生产中的多酶使用提供了科学基础.
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