PROXI – Quantification of density and metabolic activity of the total microbiome in proximal segments of the host intestine (duodenum, jejunum, ileum, crop).
The small intestine (duodenum, jejunum and ileum) is the part of gastrointestinal tract where most absorption of nutrients occurs
Nutrient requirements of commensal microbiota in the small intestine (mainly lactobacilli) are exactly the same as those of the host
Excessive bacterial activity in the small intestine is considered a burden to the host
The ratio of homolactic to heterolactic fermentation may affect performance (lactate:acetate ratio)