Rosemary leaf powder improves egg quality,antioxidant status,gut barrier function,and cecal microbiota and metabolites of late-phase laying hens

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外文摘要：This study sought to determine the effects of rosemary leaf powder(RP)on laying performance,egg quality,serum indices,gut barrier function,and cecal microbiota and metabolites of late-phase laying hens.A total of 84"Jing Tint 6"laying hens at 65-week old were randomly divided into 2 groups and fed either a basal diet(CON)or a basal diet supplemented with 0.3％RP.Our study revealed that RP improved the Haugh unit and decreased yolk n-6/n-3 polyunsaturated fatty acid(PUFA)ratio of laying hens,increased serum superoxide dismutase(SOD),jejunal activities of SOD and catalase(CAT),and jejunal zonula occludens-1(ZO-1)expression,as well as decreased serum tumor necrosis factor-α(TNF-α)level and jejunal TNF-α mRNA expression.Rosemary leaf powder markedly enhanced(P＜0.05)cecal abun-dances of Rikenellaceae,Rikenellaceae_RC9_gut_group,and Turicibacter,tended to promote(P=0.076)butyrate concentration,and reduced(P＜0.05)cecal abundances of Erysipelatoclostridiaceae,Sutter-ellaceae,Fusobacteriaceae,Campylobacteraceae,Sutterella,Campylobacter,and Fusobacterium,which were closely linked with Haugh unit,yolk n-6/n-3 PUFA ratio,serum SOD and TNF-α.In addition,RP altered the metabolic functions of cecal microbiota and enhanced the abundances of butyrate-synthesizing enzymes,including lysine 2,3-aminomutase,β-lysine 5,6-aminomutase,and 3-oxoacid CoA-transferase.Together,0.3％RP has the potential to enhance egg quality by partially modulating serum antioxidant status,jejunal barrier function,and cecal microbiota structure and metabolites,indicating that RP could be considered a promising feed additive to promote the production performance of late-phase laying hens.

外文关键词：

Rosemary leaf powderProductionAntioxidant statusGut healthMicrobial communityLaying hen

作者：

Lianhua Zhang、Junwei Ge、Fei Gao、Min Yang、Hui Li、Fei Xia、Hongtong Bai、Xiangshu Piao、Zhiying Sun、Lei Shi

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作者单位：

Key Laboratory of Plant Resources,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China

China National Botanical Garden,Beijing 100093,China

State Key Laboratory of Animal Nutrition,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China

College of Pharmacy,Shandong University of Traditional Chinese Medicine,Jinan 250355,China

University of Chinese Academy of Sciences,Beijing 100049,China

Beijing Jingwa Agricultural Science & Technology Innovation Center,Beijing 100160,China

State Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China

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基金：

China Postdoctoral Science FoundationStrategic Priority Research Program of the Chinese Academy of SciencesGu'an Songhe Poultry Breeding Co.,Ltd.(Hebei China)

项目编号：

2022M723370XDA23080603

出版年：

2024

DOI：

10.1016/j.aninu.2024.02.003

动物营养(英文)

CSTPCD

ISSN：

年,卷(期)：2024.17(2)