Effect of dietary fiber content on nutrient digestibility and fecal microbiota composition in growing-finishing pigs

• DOI: 10.1371/journal.pone.0206159
• Publication Date: 2018-10-24T18:57:59Z
• Authors: Mathilde Le Sciel...; Etienne Labussière; Olivier Zemb; David Renaudeau
• Keywords: Prevotella; Lachnospiraceae; Digestion

Microbial population in the gastrointestinal tract plays a central role health and nutrient digestion. The objective of present study was to investigate relationships between microbiota apparent digestibility coefficients with respect age diet. Pigs from Large-White, Duroc or Pietrain breeds were raised under same housing conditions fed alternately low-fiber (LF) high-fiber diet (HF) during 4 successive 3-week periods. Data collection for measurements achieved last week each period. At end period, fecal collected 16S rRNA gene sequencing. remained stable across periods whereas energy, crude proteins cell wall components increased. resilient effect pigs LF discriminated those HF using 31 predicting OTUs mean classification error-rate 3.9%. Clostridiaceae Turicibacter negatively correlated Lactobacillus positively protein energy group. In addition, Lachnospiraceae Prevotella component digestibility. contrast, no significant correlation found composition when Interestingly, it also longer possible distinguish animals different once diet, so that could only trace breed origin first period our experimental conditions, 3 weeks adaptation new seems be sufficient observe resilience growing pigs’ microbiota. We demonstrated can used classify according their dietary treatment. Some bacteria are favorable unfavorable This suggests manipulations bacterial populations improve feed efficiency.