Microbial Community and Short-Chain Fatty Acid Mapping in the Intestinal Tract of Quail

Area of Science:

• Animal Science
• Microbiology
• Gut Health

Background:

• Quail farming is significant for meat and egg production in China.
• Understanding the gastrointestinal microbiome is crucial for optimizing quail health and productivity.

Purpose of the Study:

• To characterize the gut microbial composition and short-chain fatty acid (SCFA) profiles in different intestinal segments of quail.
• To identify key bacterial taxa associated with SCFA production in quail.

Main Methods:

• 16S rRNA gene sequencing and quantitative PCR (qPCR) for microbial community analysis.
• Gas chromatography (GC) for quantifying SCFAs in five intestinal locations.
• Analysis of eight-week-old quail.

Main Results:

• Firmicutes and Bacteroidetes were the dominant phyla, with regional variations (Firmicutes in small intestine, Bacteroidetes in cecum/colorectum).
• Lactobacillus dominated most sections, while Megamonas, Faecalibacterium, and Bacteroides were prevalent in the cecum.
• SCFA-producing bacteria were richer in the cecum and colorectum, correlating with higher SCFA concentrations.

Conclusions:

• Gut microbiota composition varies significantly along the quail intestinal tract.
• Specific bacterial genera are associated with SCFA production, particularly in the hindgut.
• These insights are valuable for future research on quail microbiology, performance, and health.