在接受刺激剂和小麦作为额外的纤维来源的Eimeria挑战 brojlers的生长性能,营养利用,肠道完整性,短链脂肪酸和基因表达
Bhargavi Kasireddy1, Jeferson Lourenco2, Gemma Gonzalez-Ortiz3
1Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
Poultry science
|March 18, 2025
概括
来自小麦 (WB) 的刺激生物 (STB) 和食纤维 (DF) 并没有改善Eimeria挑战的鸟类的生长性能或短链脂肪酸 (SCFA) 概况. 然而,WB的含有减少了枝链脂肪酸 (BCFA),表明蛋白质发酵发生了变化.
科学领域:
- 动物营养 动物营养
- 肠道微生物学 肠道微生物学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 食纤维 (DF) 和兴奋剂 (STB) 可以调节肠道微生物群并增强宿主健康.
- 了解它们对受到Eimeria挑战的家禽的影响对于优化生长和肠道完整性至关重要.
研究的目的:
- 调查小麦 (WB) 作为DF和STB补充的来源对Eimeria挑战的肉生长性能,营养消化能力和发酵的影响.
主要方法:
- 1200只雄性肉被分配给六种饮食治疗,包括不同水平的WB和STB,有或没有Eimeria挑战.
- 分析了生长性能,干物质消化能力 (DMD), (N) 消化能力,SCFA和基因表达.
- 统计分析包括单向ANOVA和Tukey的HSD测试.
主要成果:
- 无论是STB还是WB的含有都没有显著影响挑战性鸟类的整体生长表现或SCFA概况.
- 加入小麦导致枝链脂肪酸 (BCFA) 的减少,这表明蛋白质发酵减少.
- 与营养代谢和免疫反应相关的特定基因表达显示出对治疗的不同反应.
结论:
- 用STB或WB的食补充剂没有提高生长性能,也没有改变受Eimeria挑战的肉中SCFA概况.
- 加入小麦可能会通过修改肠道微生物群组成来减少CECA中的蛋白质发酵.
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