Metataxonomic and Histopathological Study of Rabbit Epizootic Enteropathy in Mexico

Overview

Journal Animals (Basel)

Date 2020 Jun 3

PMID 32481706

Citations 4

Authors

Xiao-Haitzi Daniel Puon-Pelaez

Neil Ross McEwan

Jose Guadalupe Gomez-Soto

Roberto Carlos Alvarez-Martinez

Andrea Margarita Olvera-Ramirez

Affiliations

Soon will be listed here.

Abstract

Epizootic rabbit enteropathy (ERE) affects young rabbits and represents 32% of the enteropathies in rabbit production farms in Mexico. The etiology of this syndrome has not been clarified yet. A metataxonomic and histopathology study of ERE was carried out to compare the gastrointestinal microbiota and histopathological lesions of healthy and positive-ERE rabbits. The metataxonomic study was done using an Illumina MiSeq (MiSeq system, Illumina, San Diego California, USA) massive segmentation platform, and a Divisive Amplicon Denoising Algorithm 2 (DADA2 algorithm) was used to obtain Shannon and Simpson diversity indices as well as the relative abundance of the identified communities. For the histopathological study, paraffin sections of the cecum, ileo-cecal valve, and colon were stained with eosin and hematoxylin. AxioVision 4.9 software (Carl Zeiss MicroImaging GmbH, Jena, Germany) was used to measure the crypt depths. Statistical analysis was done using PERMANOVA analysis for the metataxonomic study and ANOVA for the histopathology study. Histopathologic analysis showed smaller sizes of crypts in the colon of ERE rabbits. Differences were observed in the diversity and abundance of the gastrointestinal microbiota between the analyzed groups. The genus and the species and were associated with ERE. The results obtained from this study can provide information for future clarification of the etiology and proposals of effective treatments.

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