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

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...

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Bibliographic Details
Published in:Animal Nutrition 2024-06, Vol.17, p.325-334
Main Authors: Zhang, Lianhua, Ge, Junwei, Gao, Fei, Yang, Min, Li, Hui, Xia, Fei, Bai, Hongtong, Piao, Xiangshu, Sun, Zhiying, Shi, Lei
Format: Article
Language:English
Subjects:
Antioxidant status
Gut health
Laying hen
Microbial community
Production
Rosemary leaf powder
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Summary: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 ( ) expression, as well as decreased serum tumor necrosis factor-α (TNF-α) level and jejunal mRNA expression. Rosemary leaf powder markedly enhanced (  
ISSN:2405-6545
2405-6383
DOI:10.1016/j.aninu.2024.02.003