Table 2.

Effect of dietary L-lysine·H₂SO₄ levels on performance of broiler chickens¹

Items	Dietary L-lysine·H2SO4 levels, %					SEM	P-value
	0	1	4	7	10		ANOVA	Linear	Quadratic
D 1 to 21
Average daily feed intake, g	43.0a	42.7a	32.9b	13.5c	6.5d	0.66	< 0.01	< 0.01	< 0.01
Average daily gain, g	32.7a	32.7a	22.6b	6.0c	1.5d	0.77	< 0.01	< 0.01	< 0.01
Feed conversion ratio	1.3d	1.3d	1.5c	2.3b	4.4a	0.06	< 0.01	< 0.01	< 0.01
D 22 to 35
Average daily feed intake, g	111.3a	109.2a	56.5b	24.7c	10.8d	2.00	< 0.01	< 0.01	< 0.01
Average daily gain, g	67.0a	65.6a	19.5b	6.3c	1.9d	1.52	< 0.01	< 0.01	< 0.01
Feed conversion ratio	1.7d	1.7d	3.0c	4.1b	6.0a	0.26	<0.01	<0.01	<0.01
D 1 to 35
Average daily feed intake, g	70.3a	69.3a	42.4b	18.0c	8.2d	1.00	< 0.01	< 0.01	< 0.01
Average daily gain, g	46.4a	45.9a	21.4b	6.1c	1.6d	0.83	<0.01	< 0.01	< 0.01
Feed conversion ratio	1.5d	1.5d	2.1c	3.0b	5.1a	0.12	< 0.01	<0.01	< 0.01

¹Means in the same row with different superscripts significantly differ from one another (P < 0.05). SEM standard error of the mean; n = 8/diet