Fig 3. Alpha diversity indices in cecum content of piglets treated with two different doses of yeast or water.

Piglets were treated by oral gavage with either 5 x 10⁹ cfu (Low) dose or 2.5 x 10¹⁰ cfu (High) dose of live yeast or sterile water (Control) every other day starting from day one of age until weaning. Piglets were euthanized on weaning day and cecum content collected for microbiota analysis. Species richness and diversity index were measured with three different matrices: Observed OTUs, Chao1 and Shannon index. The number of piglets per group were respectively: 13 in Control; 15 in Low yeast; 16 in High yeast. * stands for P < 0.05.