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To investigate the differences in intestinal microbiota of diarrheic and healthy sika deer fawns nursed artificially, and to identify potential pathogenic bacterial taxa associated with diarrhea, fecal samples from six diarrheic and six healthy fawns were collected and analyzed using 16S rRNA gene sequencing. The results revealed that the intestinal microbial diversity in the diarrheic group was significantly lower than that in the healthy group. In the diarrheic fawns, the relative abundances of dominant phyla such as Firmicutes and Bacteroidetes were reduced, whereas those of opportunistic pathogens belonging to Fusobacteria and Proteobacteria were elevated. At the genus level, increased abundances of Enterobacterium, Fusobacterium, and Klebsiella were observed. These findings suggest that the primary cause of diarrhea in artificially reared sika deer fawns is dysbiosis characterized by a decrease in beneficial commensal bacteria and an overrepresentation of opportunistic pathogenic genera, including Enterobacterium and Fusobacterium.
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Basic Information:
DOI：10.19848/j.cnki.ISSN1005-2739.2025.12.0006
China Classification Code:S858.25
Citation Information:
[1]ZHANG Wang,GUO Yating,GUO Xingjian ,et al.Analysis of the differences in intestinal flora of diarrhea and healthy sika deer nursed artificially[J].Heilongjiang Journal of Animal Reproduction,2025,33(06):35-43.DOI:10.19848/j.cnki.ISSN1005-2739.2025.12.0006.
Fund Information:
国家重点研发计划项目（2023YFD1302001）
2025-12-15
2025-12-15