Structural modulation of gut microbiota in Bama minipigs in response to treatment with a "growth-promoting agent", salbutamol

Applied Microbiology and Biotechnology
Chenyang LuXiurong Su

Abstract

Even though salbutamol (SAL) had remarkable effects on the enhancement of growth rate and carcass composition in different livestock species such as cattle, pigs, sheep and poultry, it was banned as a growth promoter because of its adverse effects on health. However, the specific mechanism by which salbutamol enhances growth efficiency remains unknown. In this study, Bama pigs were randomly allocated to receive salbutamol (5 mg/kg) for 30 or 60 days and were compared with untreated pigs. Pigs treated with salbutamol demonstrated enhanced growth rates and carcass composition; however, they showed deterioration in blood biochemical indices and organ development. We hypothesized that salbutamol exerts its effects by modulating the composition of the gut microbiota population. The faecal microbiome of pigs was characterized via pyrosequencing of the bacterial 16S rRNA gene. The gut microbiota population analysis showed that salbutamol caused shifts in the microbial composition of less abundant species. Redundancy analysis indicated an increase in abundance of the phylum Bacteroidetes, class Betaproteobacteria, family Christensenellaceae and genus Lactobacillus, and a decreased ratio of the phylum Firmicutes, class Clostridia and ge...Continue Reading

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Datasets Mentioned

BETA
SRP100440

Methods Mentioned

BETA
PCR

Software Mentioned

SPSS
MATLAB
UniFrac
Mothur
QIIME
USearch

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