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Effects of vitamin D-free diet on ecological parameters of the bacterial communities. Fecal samples were collected from standard diet (SD, n = 10) and vitamin D-free diet group (n = 10) rats. The microbial alpha diversity was analyzed using (A) numbers of species, (B) Chao richness, (C) Pielou, (D) Shannon and (E) Simpsons indices. Results are expressed as a scatterplot and means and were compared by a student’s t-test; * p < 0.05 vs. SD.
