Table 3. Differences in the structures of the fecal microbiota communities of Mangalarga Marchador fillies subjected to the incremental exercise test (IET) and a 42-days aerobic fitness program as evaluated by parsimony and AMOVA analyses.

	Tests
Comparisons	Yue & Clayton		Jaccard
	Parsimony	AMOVA	Parsimony	AMOVA
C1-0 vs. C1-48	0.615	0.094	0.619	0.196
C2-0 vs. C2-48	0.602	0.087	0.595	0.225
C1-48 vs. ET1-48	1.00	0.043	0.229	0.05
C2-48 vs. ET2-48	1.00	0.238	0.199	0.035
ET1-0 vs. ET1-48	0.690	0.027	0.096	0.022
ET2-0 vs. ET2-48	0.219	0.002	0.011	0.001
ET1-48 vs. ET2-48	0.082	0.003	0.096	0.005
ET1-0 vs. ET2-48	0.043	0.124	0.045	0.017

C1-0 = control group before IET-1 (first incremental exercise testing) and conditioning period; C1-48 = control group 48 h after the IET-1 and before the conditioning period; C2-0 = control group before the IET-2 (second exercise testing) and after the conditioning period; C2-48 = control group 48 h after the IET-2 and after the conditioning period (C1-0, C1-48, C2-0 and C2-48, n = 3) did not exercise; ET = total exercise group: all fillies that underwent at the exercise were analyzed as a separate treatment. ET1-0 = all exercising animals before IET-1 and the conditioning period; ET1-48 = all exercising fillies 48 h after IET-1 and before the conditioning period; ET2-0 = all exercising fillies before IET-2 and after the conditioning period; ET2-48 = all exercising fillies 48 h after IET-2 and after the conditioning period (ET1-0, ET1-48, ET2-0, ET2-48, n = 9). Comparison between controls groups: C1-0 vs. C1-48; Effect of IET: C1-48 vs. ET1-48; ET1-0 vs. ET1-48 and ET2-0 vs. ET2-48. Effect of conditioning period: ET1-48 vs. ET2-48 and ET1-0 vs. ET2-48. The numbers are P values and evaluation time with significance <0.05 are in bold.