Fig. 4From: Early inoculation with caecal fermentation broth alters small intestine morphology, gene expression of tight junction proteins in the ileum, and the caecal metabolomic profiling of broilersPCA score plots (a and b), OPLS-DA score plots (c and d) and OPLS-DA corresponding validation plots (e and f) resulting from the GC-TOF/MS metabolite profiles of the caecal contents of 7-day-old and 14-day-old broilers. PCA: principal component analysis; OPLS-DA: orthogonal partial least squares discriminant analysis. C group: control group; F group: fermentation broth groupBack to article page