. 2018 May 11;96(8):3302–3318. doi: 10.1093/jas/sky197

Table 16.

The relative abundance of ten phyla (%, >1% in at least one sample) and Firmicutes/Bacteroidete ratio in colon of pigs fed the experimental diets¹

Item	Diet²					SEM³	P value
Item	NC	PC	OA1	OA3	OA1 + OA3	SEM³	P value
Firmicutes	57.93	56.46	53.81	52.93	61.57	1.72	0.676
Bacteroidetes	33.09	29.03	34.16	33.93	28.37	1.73	0.354
Proteobacteria	5.10	10.14	6.05	7.70	5.94	0.73	0.239
Spirochaetes	1.07	1.33	1.97	1.84	1.52	0.25	0.558
Tenericutes	0.83^b	1.38^b	1.91^a	1.77^a	1.11^ab	0.12	0.014
Fibrobacteres	0.16	0.40	0.20	0.08	0.10	0.05	0.220
Actinobacteria	0.54	0.67	0.55	0.61	0.73	0.06	0.728
Cyanobacteria	0.55^a	0.23^c	0.55^ab	0.24^bc	0.13^c	0.05	0.001
Planctomycetes	0.02	0.01	0.18	0.01	0.03	0.03	0.604
Verrucomicrobia	0.51^a	0.08^b	0.33^a	0.46^a	0.01^b	0.04	0.000

¹Values means n = 8 for NC, OA1, OA3, and OA1 + OA3, n = 7 for PC group.

²NC = negative control, no antibiotics; PC = positive control, antibiotics included; OA1 = NC plus organic acid 1; OA3 = NC plus organic acid 3; OA1 + OA3 = NC plus organic acid 1 and organic acid 3.

³Pooled SEM; n = 8 per treatment except that n = 7 for PC group.