Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection

Coccidiosis, caused by <i>Eimeria</i> protozoa, is a severe intestinal parasitic disease that results in substantial economic losses to the global poultry industry annually. The gut microbiota plays a crucial role in host health, metabolism, immune function, and nutrient absorption in ch...

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Main Authors: Jianqiang Tang, Liyue Dong, Meihui Tang, Areej Arif, Honghong Zhang, Genxi Zhang, Tao Zhang, Kaizhou Xie, Shijie Su, Zhenhua Zhao, Guojun Dai
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Language:English
Published: MDPI AG 2025-05-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/10/1500
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author Jianqiang Tang
Liyue Dong
Meihui Tang
Areej Arif
Honghong Zhang
Genxi Zhang
Tao Zhang
Kaizhou Xie
Shijie Su
Zhenhua Zhao
Guojun Dai
author_facet Jianqiang Tang
Liyue Dong
Meihui Tang
Areej Arif
Honghong Zhang
Genxi Zhang
Tao Zhang
Kaizhou Xie
Shijie Su
Zhenhua Zhao
Guojun Dai
author_sort Jianqiang Tang
collection DOAJ
description Coccidiosis, caused by <i>Eimeria</i> protozoa, is a severe intestinal parasitic disease that results in substantial economic losses to the global poultry industry annually. The gut microbiota plays a crucial role in host health, metabolism, immune function, and nutrient absorption in chickens. Recent studies have focused on the effects of <i>Eimeria tenella</i>’s <i>(E. tenella</i>) acute infection period on host health. However, recovery conditions, cecal microbiota composition, and functional differences in the ceca of chickens with varying resistance to <i>E. tenella</i> remain poorly understood during the recovery period after infection. This study aimed to compare growth performance, cecal histopathology, and the cecal microbiota characteristics in control (R_JC), resistant (R_JR), and susceptible (R_JS) chickens during recovery, using metagenomic sequencing. The results revealed significant differences in both cecal tissue structure and growth performance between the different groups during recovery. Although no significant differences were observed in microbial alpha diversity among the groups, sequencing analysis highlighted notable changes in microbial composition and abundance. <i>Bacteroidetes</i>, <i>Firmicutes</i>, and <i>Proteobacteria</i> were the predominant phyla in chicken cecal contents; however, <i>Firmicutes</i> abundance was lower in the R_JS group than in the R_JC and R_JR groups. Further analysis, combining linear discriminant analysis effect size (LEfSe) and differential heatmap analysis, identified <i>Bacteroides_fluxus</i>, <i>Ruminococcus_flavefaciens</i>, and <i>Bacteroides_sp_CACC_737</i> as dominant microorganisms in the R_JR group (<i>p</i> < 0.05) compared to both the R_JC and R_JS groups. In contrast, <i>Sutterella_sp_AM11-39</i>, <i>Bacteroides_sp_43_108</i>, <i>Mycobacterium</i>, <i>Mycoplasma_arginini</i>, and <i>Chlamydia</i> dominated in the R_JS group, while <i>Butyricimonas</i>, <i>Butyricimonas_sp_Marseille-P3923</i>, and <i>Flavonifractor_plautii</i> were significantly reduced in the R_JS group (<i>p</i> < 0.05). Additionally, beneficial cecal microorganisms such as <i>Flavonifractor_sp__An10</i>, <i>Pseudoflavonifractor</i>, and <i>Faecalicoccus</i> were significantly decreased in both the R_JR and R_JS groups (<i>p</i> < 0.05) compared to the R_JC group. Predictive functional analysis using the KEGG and CAZy databases further indicated that the cecal microbiota in the R_JR group exhibited enhanced metabolism-related pathways, whereas these pathways were significantly diminished in the R_JS group, potentially influencing the recovery process from coccidial infection. These findings provide valuable insights into the cecal microbiota’s role during recovery from <i>E. tenella</i> infection and deepen our understanding of the impact of coccidial infections on host health.
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spelling doaj-art-1af1966690b7435da978e8c1e3d9d2bc2025-08-20T01:57:04ZengMDPI AGAnimals2076-26152025-05-011510150010.3390/ani15101500Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> InfectionJianqiang Tang0Liyue Dong1Meihui Tang2Areej Arif3Honghong Zhang4Genxi Zhang5Tao Zhang6Kaizhou Xie7Shijie Su8Zhenhua Zhao9Guojun Dai10College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaPoultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, ChinaCollege of Animal Science and Technology, Yangzhou University, Yangzhou 225000, ChinaCoccidiosis, caused by <i>Eimeria</i> protozoa, is a severe intestinal parasitic disease that results in substantial economic losses to the global poultry industry annually. The gut microbiota plays a crucial role in host health, metabolism, immune function, and nutrient absorption in chickens. Recent studies have focused on the effects of <i>Eimeria tenella</i>’s <i>(E. tenella</i>) acute infection period on host health. However, recovery conditions, cecal microbiota composition, and functional differences in the ceca of chickens with varying resistance to <i>E. tenella</i> remain poorly understood during the recovery period after infection. This study aimed to compare growth performance, cecal histopathology, and the cecal microbiota characteristics in control (R_JC), resistant (R_JR), and susceptible (R_JS) chickens during recovery, using metagenomic sequencing. The results revealed significant differences in both cecal tissue structure and growth performance between the different groups during recovery. Although no significant differences were observed in microbial alpha diversity among the groups, sequencing analysis highlighted notable changes in microbial composition and abundance. <i>Bacteroidetes</i>, <i>Firmicutes</i>, and <i>Proteobacteria</i> were the predominant phyla in chicken cecal contents; however, <i>Firmicutes</i> abundance was lower in the R_JS group than in the R_JC and R_JR groups. Further analysis, combining linear discriminant analysis effect size (LEfSe) and differential heatmap analysis, identified <i>Bacteroides_fluxus</i>, <i>Ruminococcus_flavefaciens</i>, and <i>Bacteroides_sp_CACC_737</i> as dominant microorganisms in the R_JR group (<i>p</i> < 0.05) compared to both the R_JC and R_JS groups. In contrast, <i>Sutterella_sp_AM11-39</i>, <i>Bacteroides_sp_43_108</i>, <i>Mycobacterium</i>, <i>Mycoplasma_arginini</i>, and <i>Chlamydia</i> dominated in the R_JS group, while <i>Butyricimonas</i>, <i>Butyricimonas_sp_Marseille-P3923</i>, and <i>Flavonifractor_plautii</i> were significantly reduced in the R_JS group (<i>p</i> < 0.05). Additionally, beneficial cecal microorganisms such as <i>Flavonifractor_sp__An10</i>, <i>Pseudoflavonifractor</i>, and <i>Faecalicoccus</i> were significantly decreased in both the R_JR and R_JS groups (<i>p</i> < 0.05) compared to the R_JC group. Predictive functional analysis using the KEGG and CAZy databases further indicated that the cecal microbiota in the R_JR group exhibited enhanced metabolism-related pathways, whereas these pathways were significantly diminished in the R_JS group, potentially influencing the recovery process from coccidial infection. These findings provide valuable insights into the cecal microbiota’s role during recovery from <i>E. tenella</i> infection and deepen our understanding of the impact of coccidial infections on host health.https://www.mdpi.com/2076-2615/15/10/1500<i>E. tenella</i>growth performanceintestinal morphologycecal microbiotametagenome sequencing
spellingShingle Jianqiang Tang
Liyue Dong
Meihui Tang
Areej Arif
Honghong Zhang
Genxi Zhang
Tao Zhang
Kaizhou Xie
Shijie Su
Zhenhua Zhao
Guojun Dai
Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
Animals
<i>E. tenella</i>
growth performance
intestinal morphology
cecal microbiota
metagenome sequencing
title Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
title_full Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
title_fullStr Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
title_full_unstemmed Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
title_short Metagenomic Analysis Reveals the Characteristics of Cecal Microbiota in Chickens with Different Levels of Resistance During Recovery from <i>Eimeria tenella</i> Infection
title_sort metagenomic analysis reveals the characteristics of cecal microbiota in chickens with different levels of resistance during recovery from i eimeria tenella i infection
topic <i>E. tenella</i>
growth performance
intestinal morphology
cecal microbiota
metagenome sequencing
url https://www.mdpi.com/2076-2615/15/10/1500
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