. 2021 Sep 20;100(12):101489. doi: 10.1016/j.psj.2021.101489

Table 6.

The apparent ileal digestibility of essential amino acids of broilers fed diets with different concentration of TA supplementation¹.

Item,%	Dietary TA concentration, mg/kg					SEM	Effects (P-value)
Item,%	0	200	400	600	800	SEM	ANOVA	Linear	Quadratic
Lys	85.73^b	86.10^b	87.65^a	85.73^b	85.53^b	0.118	<0.001	0.519	0.002
Met	78.10^b	81.56^a	82.95^a	82.33^a	81.36^a	0.345	0.001	0.013	<0.001
Arg	93.30	93.25	93.12	93.64	92.78	0.147	0.477	0.537	0.611
His	82.37	83.89	83.70	83.89	83.53	0.232	0.221	0.168	0.088
Leu	82.43^b	82.69^b	84.07^a	83.65^ab	83.05^a^b	0.190	0.036	0.130	0.033
Ile	77.29^b	78.46^ab	78.27^ab	79.02^ab	80.14^a	0.304	0.071	0.005	0.020
Phe	83.81	84.05	84.28	84.20	83.80	0.242	0.956	0.940	0.725
Thr	75.27^b	75.84^ab	76.06^a^b	76.95^a	76.63^ab	0.217	0.041	0.015	0.044
Val	75.78^b	76.32^ab	76.63^ab	77.39^ab	77.97^a	0.266	0.078	0.005	0.018

^a-b

Means within a row with different letters differ significantly (P < 0.05).

Data are means for 8 replicates of 3 birds per replicate.