Mixed probiotics affected fecal microbiota of fox
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB24009 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR2227000_1.fastq.gz | Fastqsanger.gz | |||
| ERR2227000_2.fastq.gz | Fastqsanger.gz | |||
| ERR2226996_1.fastq.gz | Fastqsanger.gz | |||
| ERR2226996_2.fastq.gz | Fastqsanger.gz | |||
| ERR2226997_1.fastq.gz | Fastqsanger.gz |
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Project description:BACKGROUND:The abuse of antibiotics in animal husbandry imposes a serious threat to both animal health and the environment. As a replacement for antibiotics, probiotic products have been widely used in livestock farming to promote growth of animals. However, no products specifically developed for farmed raccoon dogs and foxes are commercially available at the moment. This study was conducted to investigate the effects of mixed probiotics on farmed raccoon dogs and foxes. RESULTS:Two feeding trials on farmed raccoon dogs and foxes were performed. A mixed probiotic preparation composed of Bifidobacterium bifidum, Clostridium butyricum, Bacillus subtilis and Bacillus licheniformis was fed to these two canine species in order to assess whether such a mixed probiotics can be an alternative to antibiotics (control group). The body weight of raccoon dogs exhibited an increasing tendency with mixed probiotics administration, while that of foxes did not. The serum antioxidant activity was evaluated, and a significantly increase of total antioxidative capacity (T-AOC) was observed in both species. Illumina MiSeq was used for the sequencing of 16S rRNA genes to compare the composition of fecal microbiota between the control and mixed probiotics groups. Although ?-diversity did not change, ?-diversity of the fecal microbiota showed a distinct dissimilarity between the control and probiotics groups of both raccoon dogs and foxes. Dietary mixed probiotics increased the abundance of the genus Bifidobacterium in the fecal samples of raccoon dogs, and the genus Bacillus in the fecal samples of foxes. The different responses of raccoon dogs and foxes to probiotics might be the result of differences in the composition of the native gut microbiota of the two species. CONCLUSIONS:The mixed probiotics preparation composed of Bifidobacterium bifidum, Clostridium butyricum, Bacillus subtilis and Bacillus licheniformis could be an effective feed additive for the improvement of the health of farmed raccoon dogs, but it may not be suitable for foxes.
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Project description:In animal production the use of probiotics supplements to promote animal health is increasing. The objective of this study was to assess the impact of probiotics administration on global gene expression in dairy cows. Lactating Holstein Friesian cows (n=10) from the North Carolina Agricultural and Technical State University dairy herd were used for the study. Treatment was a 10 ml oral drench of FASTtrak microbial pack (Probiotics) (Conklin Company, Kansas City, MO) at the recommended dose in water or water only (control). This treatment was carried out for 60 days. Whole blood was collected at the beginning (Day 0) and end of the study (Day 60) for microarray analysis. We employed microarray expression profiling as a discovery platform to identify genes with potential association with probiotics supplementation in cows. Gene expression analysis identified 10,859 differentially expressed genes- 1168 upregulated genes and 9691 downregulated gene. Results for pathway analysis showed significant pathways associated with innate immunity such as the Toll-like receptor (TLR) pathway, inflammation response and Wingless (Wnt) signaling pathway. Real-time PCR was used to validate gene expression of members of the TLR and Wnt signaling pathway. Treatment affected the expression of innate and adaptive immune response, cytokine and Wnt pathway genes. Daily administration of probiotics to dairy cows impacts global gene expression and particularly the expression of innate immune genes in dairy cows. Ten animals were enrolled in the study and an initial blood sample was collected (Day 0). Animals (n=5) received either daily supplementations with FASTtrak microbial pack (Probiotics) (Conklin Company, Kansas City, MO) or water daily (control animals) for 60 days. Blood samples were collected at the end of the study from probiotics-treated and control animals for RNA extraction and microarray analysis. In vitro effect of lipopolysaccharide (LPS) endotoxin treatment was evaluated using blood samples collected from probiotics-treated animals (Day 60 samples) to serve as positive control array. A pooled sample was generated by taking equal concentration of RNA from experimental animals in each group. Pooled samples from each group was hybridized on Agilent one color bovine v2 bovine (v2) 4x44KÂ array slides.
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