Table 9.

List of significantly changed metabolites between the Con group and the MT group.

Metabolite	R.T.(min) 1	Mass	Similarity	VIP 2	p-Value	FC 3
Catechol	21.19	371	878.69	1.90	0.010	0.49
Isoleucine	18.16	129	874.99	1.79	0.017	0.46
Acetoacetate	18.21	117	938.18	2.00	0.017	0.44
Trisaccharide	16.64	117	978.94	1.76	0.023	0.51
Lactic acid	18.43	117	915.83	1.57	0.026	0.52
Serine	17.55	117	882.94	1.82	0.030	0.45
Phenylalanine	13.16	117	896.50	1.60	0.037	0.05
3,5-dihydroxyphenylglycine	4.98	128	900.81	2.03	0.060	2.46

Con, the basal diet without antibiotics, tributyrin, oregano or methyl salicylate; MT diets, the basal diet supplemented with tributyrin plus methyl salicylate (1.4 g and 0.6 g per kilogram diet); ¹ R.T. represents retention time; ² VIP = variable importance projection metabolite was listed in table; ³ FC represents the fold change of the peak intensity for the control group against the MT group (n = 6).