Table 3.

Growth performance of 10- to 21-d-old male broilers fed diets with graded levels of standardized ileal digestible lysine¹.

Item	Standardized ileal digestible lysine concentrations, %								SEM2	P-values
	0.86	0.96		1.06	1.16		1.26	1.36		Linear	Quadratic
Initial body weight, g	290	290		290	290		290	290	7.4	0.983	0.986
Final body weight, g	734	836		898	893		892	875	18.6	<0.01	<0.01
Weight gain, g/bird	444	546		609	603		602	586	14.7	<0.01	<0.01
Feed intake, g/bird	750	853		890	893		851	866	20.4	<0.01	<0.01
Gain to feed, g/kg	593	640		686	677		708	677	17.6	<0.01	0.01

¹Data are the means of 6 cages of 10 male broilers (Ross 308) from d 10 to 21 post-hatch.

²SEM = standard error of the mean.