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Relative abundance of the main bacterial phyla in feces of dogs fed a lower protein and fiber diet (day 21) transitioned to a higher protein and fiber diet (days 23 to 49) without (control) or with (probiotic) yeast supplementation (S).a,b,c Different superscript letters near control and probiotic groups indicate differences among days by the LSD Bonferroni test in each group (p < 0.05). * Indicates difference between the control and probiotic groups at the time point (p < 0.05).
