Table 3.

Relative abundance of intestinal microbiota at the phylum level in 30-day-old foals.

Item	NC	GY	MY	p value
Firmicutes	63.83 ± 18.88	70.49 ± 5.90	52.26 ± 9.19	0.246
Bacteroidetes	18.22 ± 16.82	15.71 ± 10.60	20.30 ± 4.30	0.595
Verrucomicrobia	8.84 ± 11.47	4.11 ± 4.95	8.71 ± 6.04	0.437
Proteobacteria	2.77 ± 2.85	2.71 ± 1.78	2.86 ± 2.34	0.981
Chlamydiae	2.35 ± 2.29	0.11 ± 0.04*	11.52 ± 11.17	0.015
Spirochaetes	0.89 ± 1.24	1.05 ± 1.10	1.03 ± 1.31	0.874
Actinobacteria	0.32 ± 0.12	0.50 ± 0.23	0.21 ± 0.02	0.050
Fibrobacteres	0.32 ± 0.41	0.35 ± 0.53	0.46 ± 0.71	0.779
Synergistetes	0.24 ± 0.19	0.91 ± 0.77*	0.10 ± 0.02	0.044
Fusobacteria	0.21 ± 0.19	0.13 ± 0.07	0.10 ± 0.07	0.618

Phyla marked with asterisk(s) indicate differences compared with the NC group:

^*p < 0.05.