基于酸盐的先进微量矿物质在改善骨矿化,抗氧化状态,免疫力和基因表达调节方面的潜在好处在热应激 brojlers
Taher Mohammadizad1, Kamran Taherpour1, Hossein Ali Ghasemi2
1Faculty of Agriculture, Department of Animal Science, Ilam University, Ilam, Iran.
PloS one
|October 2, 2024
概括
基于先进的酸盐技术的微量矿物质 (ACTM) 有效地保护肉免受热应激 (HS). 用ACTM补充饮食可以改善生长,免疫力和抗氧化剂状况,使它们在热应激期间有利于家禽生产.
科学领域:
- 动物科学动物科学
- 禽类的营养 养
- 微量矿物质的新陈代谢
背景情况:
- 有机微量矿物质 (TM) 与无机形式相比,具有更高的生物可用性和稳定性,特别是在具有挑战性的环境条件下,如热应激 (HS).
- 基于先进酸盐技术的微量矿物质 (ACTM) 是一种新的方法,可以提高动物饮食中的TM利用率.
研究的目的:
- 为了评估ACTM的有效性,无论是作为无机微量矿物质 (ITM) 的替代品,还是作为补充剂,在热应激条件下的肉饮食中.
- 评估ACTM对暴露于HS的 brojlers生长性能,尸体特征,免疫反应和抗氧化剂状况的影响.
主要方法:
- 这是一项为期42天的研究,涉及672只雄性肉,它们被 subjected to cyclic heat stress (34°C for 8 hours). 这项研究涉及672只雄性肉,它们被 subjected to cyclic heat stress (34°C for 8 hours).
- 建立了七个治疗组:热中性控制 (TNC),热应激控制 (HSC) 和五个HS组,具有不同程度的ITM和ACTM补充剂.
- 分析了关键性能指标,包括体重,养效率,阴参数,抗体标位,血清抗氧化剂标记 (TAC,SOD,GPx1) 和基因表达 (IL-1β,IL-6,INF-γ,SOD1,NF-kB,Nrf2,GPx1).
主要成果:
- 与HSC组相比,养ACTM100 (100%ACTM取代ITM) 和ITM+ACTM25 (25%额外的ACTM) 的肉体质,质和免疫反应显著改善.
- 补充ACTM导致血清抗氧化能力 (TAC,SOD,GPx1) 和抗氧化剂相关基因 (SOD1,Nrf2,GPx1) 的增强表达,同时减少促炎性细胞因子基因表达 (IL-1β,IL-6,INF-γ).
- 在接受最佳ACTM补充剂的肉中观察到血清MDA度降低和肝脏NF-kB表达,这表明氧化应激和炎症减少.
结论:
- 用ACTM取代无机微量矿物质或用ACTM补充ITM饮食,特别是以25%更高的含量率,有效地减轻肉热应激的负面影响.
- 补充ACTM促进肉生长,增强免疫功能,并增强抗氧化剂防御机制,为改善家禽在热应激事件中的弹性提供了可行的策略.
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