Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China

Brandt’s vole is a common small rodent, and its gut microbiota is critical to host health and immune function. The parasitic fleas commonly found in Brandt’s voles cause an immune response, but their impact on the gut microbiota remains unclear. According to the level of flea infestation, Brandt’s v...

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Main Authors: Zhenxu Wang, Lu Wang, Chenran Guo, Zihao Wang, Xinchang Lun, Haoqiang Ji, Meng Shang, Xiaoxu Wang, Qiyong Liu
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/5/669
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author Zhenxu Wang
Lu Wang
Chenran Guo
Zihao Wang
Xinchang Lun
Haoqiang Ji
Meng Shang
Xiaoxu Wang
Qiyong Liu
author_facet Zhenxu Wang
Lu Wang
Chenran Guo
Zihao Wang
Xinchang Lun
Haoqiang Ji
Meng Shang
Xiaoxu Wang
Qiyong Liu
author_sort Zhenxu Wang
collection DOAJ
description Brandt’s vole is a common small rodent, and its gut microbiota is critical to host health and immune function. The parasitic fleas commonly found in Brandt’s voles cause an immune response, but their impact on the gut microbiota remains unclear. According to the level of flea infestation, Brandt’s voles were divided into the control group, low-infestation group, and high-infestation group. The changes in the microbial community composition, abundance, and diversity of the gut microbiota were evaluated using 16S rRNA sequencing. Flea infestation significantly affected body weight, food intake, and gut microbiota structure. The low-infestation group exhibited the most pronounced changes in weight and food intake, while the high-infestation group showed the least. In the 4th week, 16S rRNA sequencing revealed an increase in alpha diversity and alterations in microbial composition. Beta-diversity analysis indicated significant differences in the intestinal microbiota between the experimental groups and the control group. By the 8th week, these differences had diminished, suggesting that the microbiota had stabilized or recovered over time. Overall, parasitic flea infestation significantly alters the diversity, structure, and characteristic microbial enrichment of the gut microbiota in Brandt’s voles, potentially impacting host metabolism, immunity, and growth. While this study lasted 8 weeks, the long-term health effects of flea infestation may persist. Future research should elucidate the interaction mechanisms between parasites and hosts, define the time frames and mechanisms of these long-term impacts, and provide theoretical support for animal health management and disease control.
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spelling doaj-art-d10df733f42b474386a0845f34976ebb2025-08-20T02:52:48ZengMDPI AGAnimals2076-26152025-02-0115566910.3390/ani15050669Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in ChinaZhenxu Wang0Lu Wang1Chenran Guo2Zihao Wang3Xinchang Lun4Haoqiang Ji5Meng Shang6Xiaoxu Wang7Qiyong Liu8National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, ChinaSchool of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, ChinaSchool of Public Health, Nanjing Medical University, Nanjing 211166, ChinaSchool of Public Health, Nanjing Medical University, Nanjing 211166, ChinaNational Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, ChinaSchool of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, ChinaSchool of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, ChinaSchool of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, ChinaNational Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, ChinaBrandt’s vole is a common small rodent, and its gut microbiota is critical to host health and immune function. The parasitic fleas commonly found in Brandt’s voles cause an immune response, but their impact on the gut microbiota remains unclear. According to the level of flea infestation, Brandt’s voles were divided into the control group, low-infestation group, and high-infestation group. The changes in the microbial community composition, abundance, and diversity of the gut microbiota were evaluated using 16S rRNA sequencing. Flea infestation significantly affected body weight, food intake, and gut microbiota structure. The low-infestation group exhibited the most pronounced changes in weight and food intake, while the high-infestation group showed the least. In the 4th week, 16S rRNA sequencing revealed an increase in alpha diversity and alterations in microbial composition. Beta-diversity analysis indicated significant differences in the intestinal microbiota between the experimental groups and the control group. By the 8th week, these differences had diminished, suggesting that the microbiota had stabilized or recovered over time. Overall, parasitic flea infestation significantly alters the diversity, structure, and characteristic microbial enrichment of the gut microbiota in Brandt’s voles, potentially impacting host metabolism, immunity, and growth. While this study lasted 8 weeks, the long-term health effects of flea infestation may persist. Future research should elucidate the interaction mechanisms between parasites and hosts, define the time frames and mechanisms of these long-term impacts, and provide theoretical support for animal health management and disease control.https://www.mdpi.com/2076-2615/15/5/669parasite–host interactionimmune responsemicrobial diversity16S rRNA sequencingmetabolism and development
spellingShingle Zhenxu Wang
Lu Wang
Chenran Guo
Zihao Wang
Xinchang Lun
Haoqiang Ji
Meng Shang
Xiaoxu Wang
Qiyong Liu
Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
Animals
parasite–host interaction
immune response
microbial diversity
16S rRNA sequencing
metabolism and development
title Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
title_full Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
title_fullStr Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
title_full_unstemmed Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
title_short Effects of Different Levels of Flea Infestation on Gut Microbiota of Brandt’s Voles (<i>Lasiopodomys brandtii</i>) in China
title_sort effects of different levels of flea infestation on gut microbiota of brandt s voles i lasiopodomys brandtii i in china
topic parasite–host interaction
immune response
microbial diversity
16S rRNA sequencing
metabolism and development
url https://www.mdpi.com/2076-2615/15/5/669
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