Table 8.

Effect of the diet on ammonia, indole and biogenic amine content of faeces in the trial (mg/g).¹

Item	Groups2		SEM	P-value
	CTR	GF
Ammonia	1.225b	1.451a	0.07	0.050
Indole	0.084b	0.125a	0.01	0.005
Putrescine	0.141b	0.364a	0.05	0.009
Cadaverine	0.050	0.152	0.04	0.128
SBA	0.191b	0.516a	0.07	0.017

SBA = sum of biogenic amines.

^{a, b} Within a row, means with different superscript letters were significantly different (P < 0.05).

¹Values are means (LSM) ± standard error of the mean (SEM).

²GF: grain free diet without grain cereals; CTR: control diet with conventional grain cereals.