Table 4.

Expression of amino acid metabolism-related genes in the liver of piglets in the AM, FMT, and CO groups on days 7 and 21¹.

Gene	Day 7			Day 21
	AM/CO	FMT/CO	AM/FMT	AM/CO	FMT/CO	AM/FMT
GPT2	0.406(0.000)	0.566(0.007)	0.717(0.076)	1.200(0.389)	1.432(0.153)	0.838(0.494)
ARG1	0.541(0.000)	0.881(0.306)	0.614(0.005)	1.127(0.587)	1.162(0.613)	0.970(0.921)
TAT	0.599(0.003)	0.713(0.040)	0.840(0.242)	1.222(0.280)	0.905(0.422)	1.350(0.091)
ASS1	0.659(0.020)	0.771(0.165)	0.855(0.330)	1.051(0.859)	1.188(0.583)	0.884(0.707)
AOC2	0.585(0.004)	0.879(0.315)	0.665(0.119)	1.369(0.238)	1.279(0.357)	1.071(0.663)
ALAS2	0.609(0.017)	0.726(0.127)	0.838(0.326)	1.509(0.005)	1.895(0.040)	0.796(0.593)
GATM	0.618(0.035)	0.710(0.016)	0.870(0.488)	0.948(0.817)	0.669(0.105)	1.418(0.073)
OAT	0.455(0.000)	0.730(0.075)	0.624(0.016)	0.991(0.812)	1.160(0.666)	0.854(0.487)

¹Date were presented as fold change (P value); “0.000” means less than 0.001; The gene expressions were considered to be significantly altered when Fold change > 1.5 or < 0.67, P < 0.05; GPT2: glutamic–pyruvic transaminase 2; ARG1: arginase 1; TAT: tyrosine aminotransferase; ASS1: argininosuccinate synthase 1; AOC2: amine oxidase, copper containing 2; ALAS2: 5′-aminolevulinate synthase 2; GATM: glycine amidinotransferase; OAT: ornithine aminotransferase.