黄类,异类类和它们的组合会影响肉的生长性能,炎症状况和肠道微生物群在高种群密度和热应激条件下
Kittisak Insawake1, Thaweesak Songserm2, Ornprapun Songserm1
1Department of Animal Science, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand.
Animals : an open access journal from MDPI
|January 11, 2025
概括
单独或组合使用的黄类和异类类,在高种群密度和热应激条件下,可增强肉生长和肠道健康. 这些天然化合物为改善家禽生产提供了抗生素有希望的替代品.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物营养 动物营养
- 肠道微生物组研究研究
背景情况:
- 高种群密度 (HSD) 和热应激 (HS) 对肉的表现和健康产生负面影响.
- 抗生素的使用受到限制,需要使用植物化学品等替代策略.
- 黄酸 (FVNs) 和异类酸 (IQAs) 显示出减轻家禽压力的潜力.
研究的目的:
- 在HSD和HS条件下,评估FVN,IQA及其组合作为巴西特拉辛 (BCT) 的替代品.
- 评估这些化合物对肉生长,炎症,肠道形态和肠道微生物群的影响.
- 确定FVN和IQA组合是否提供协同效益.
主要方法:
- 2100只Ross 308肉被分配到七种饮食治疗 (NSD,HSD,HSD+BCT,HSD+FVNs,HSD+IQAs,HSD+FVN-IQA,HSD+IQA-FVN) 中.
- 鸟类是在夏季条件下养的,其热应激指数高 (>160).
- 评估的参数包括生长性能,皮质,炎症标志物 (IL-6,H/L比率),肠道形态 (肠道高度/密室深度),以及肠道微生物群的多样性和组成.
主要成果:
- HSD和BCT组在11-24天后体重增加减少.
- 与HSD相比,FVN,IQA及其组合显著降低了皮质类固醇,IL-6,马隆迪甲基和H/L比率.
- 在FVNs,IQAs和组合相对于HSD (BCT除外) 观察到,在真,大肠和十二指肠中改善了的高度/密室深度比率.
- 微生物组的多样性,组成和代谢途径都受到饮食治疗的调节.
结论:
- 黄类,异类类和它们的序列组合有效地改善了在HSD和HS下 brojler 的生长性能.
- 这些植物化学物质显示出显著的抗炎作用,并增强了肠道健康指标.
- 结合的FVN和IQA表现出协同效应,为抗生素增长促进剂提供了可行的,天然的替代品.
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