槲皮素对肉鸡行为、生产性能和脾脏免疫力的影响

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Veterinary and Animal Science Pub Date : 2024-09-18 DOI:10.1016/j.vas.2024.100398
Sara Elsayed El-Kazaz , Mona Hafez Hafez , Ghadeer M. Albadrani , Muath Q. Al-Ghadi , Mohamed M. Abdel-Daim , Yasser Said El-Sayed
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引用次数: 0

摘要

槲皮素(QRT)是一种强效类黄酮,在改善肉鸡各方面生理状态方面具有巨大的机理潜力。这项综合研究探讨了槲皮素对行为、生产性能和免疫功能的深远影响,揭示了其功效背后的潜在机制。将 400 只一天龄的 Cobb 500 雏鸡随机分为 4 个添加组(100 只/组,5 个重复),并在日粮中添加不同浓度的 QRT(0、200、400 和 600 ppm),持续 6 周。肉眼扫描结果显示,添加 QRT 的组别在采食和身体护理行为方面有明显改善(P > 0.05),同时闲逛和走动的情况也有所减少。此外,补充 QRT 对肉鸡的增重、采食量和最终体重都有很大的积极影响(P > 0.05)。在免疫参数的深入评估中,添加 QRT 能显著(P > 0.05)提高免疫功能,包括改善脾脏、胸腺和法氏囊指数,增强免疫球蛋白 M(IgM)和免疫球蛋白 A(IgA)的分泌,以及刺激对绵羊红细胞(SRBC)的体液免疫。此外,QRT 还具有强大的抗氧化特性,这体现在脾脏丙二醛水平降低和抗氧化应激酶活性增强上。值得注意的是,补充 QRT 会引起脾脏组织中关键免疫相关基因剂量依赖性上调(P < 0.001),如肠白细胞介素-4(IL-4)、干扰素-γ(INF-γ)、Toll 样受体 2(TLR2)和肿瘤坏死因子-α(TNF-α)。总之,这些机理研究强调了 QRT 作为一种功能性饲料添加剂的深远影响,它能增强肉鸡的行为、性能和免疫功能,同时提供强大的抗氧化强化作用。
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The influence of Quercetin on behavior, performance and splenic immunity in broiler chickens

Quercetin (QRT), a potent flavonoid, holds immense mechanistic potential in enhancing various aspects of broiler chicken physiological status. This comprehensive study explores the profound еffеcts of QRT on behavior, productive performance, and immune functions, unraveling the underlying mechanisms behind its efficacy. Four hundred, one-day-old Cobb 500 chicks were placed randomly into 4 supplementation groups (100 birds /group and five replicates) and provided diets enriched with varying concentrations of QRT (0, 200, 400, and 600 ppm) for six weeks. Visual scanning revealed significant (P > 0.05) improvements in feeding and body care behaviors, accompanied by reduced instances of idleness and walking in the QRT-supplemented groups. Moreover, QRT supplementation exerted a substantial (P > 0.05) positive influence on weight gain, feed intake and the final body weight of the broilers. In-depth evaluation of immune parameters, QRT supplementation elicited significant (P > 0.05) enhancements in immune functions, including improved spleen, thymus, and bursa indices, enhanced secretion of immunoglobulin M (IgM) and immunoglobulin A (IgA), and stimulated humoral immunity against sheep red blood cells (SRBCs). Furthermore, QRT displays potent antioxidant properties, as showed by diminished splenic malondialdehyde levels and augmented activity of antioxidative stress enzymes. Remarkably, QRT supplementation elicited dose-dependent upregulation (P < 0.001) of key immune-related genes, such as intеrlеukin-4 (IL-4), interferon-γ (INF-γ), Toll-like receptor 2 (TLR2), and tumor necrosis factor-α (TNF-α) in the splenic tissue. Collectively, these mechanistic insights underscore the profound impact of QRT as a functional feed additive, fostering enhanced behavior, performance, and immune function in broiler chickens, while delivering robust antioxidant fortification.

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来源期刊
Veterinary and Animal Science
Veterinary and Animal Science Veterinary-Veterinary (all)
CiteScore
3.50
自引率
0.00%
发文量
43
审稿时长
47 days
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