Table 7.

Linear regression to predict the concentration (%) of standardized ileal digestible (SID) AA from the nutrient concentrations (%) in corn distillers dried grains with solubles (DDGS) fed to pigs ¹

	Intercept			Independent variable 2
Dependent variable	Estimate	SE	P -value	Variable	Estimate	SE	P -value	r 2
SID Arginine	-0.66	0.20	< 0.01	Arg	1.398	0.171	< 0.01	0.70
	1.16	0.02	< 0.01	ADIN	-0.506	0.053	< 0.01	0.76
SID Histidine	-0.62	0.22	< 0.01	His	1.639	0.322	< 0.01	0.47
	0.58	0.01	< 0.01	ADIN	-0.203	0.025	< 0.01	0.68
SID Isoleucine	-0.92	0.30	< 0.01	Ile	1.706	0.320	< 0.01	0.50
	0.15	0.08	0.08	Lys:CP	0.200	0.031	< 0.01	0.58
SID Leucine	-2.23	0.69	< 0.01	Leu	1.623	0.243	< 0.01	0.61
	2.61	0.03	< 0.01	ADIN	-0.554	0.071	< 0.01	0.67
SID Lysine	-0.46	0.08	< 0.01	Lys	1.214	0.115	< 0.01	0.79
	0.60	0.02	< 0.01	ADIN	-0.463	0.037	< 0.01	0.84
SID Methionine	-0.39	0.13	< 0.01	Met	1.53	0.252	< 0.01	0.56
	0.46	0.01	< 0.01	ADIN	-0.161	0.017	< 0.01	0.76
SID Phenylalanine	-1.11	0.26	< 0.01	Phe	1.726	0.217	< 0.01	0.68
	1.08	0.01	< 0.01	ADIN	-0.304	0.034	< 0.01	0.73
SID Threonine	-1.31	0.50	< 0.05	Thr	1.967	0.499	< 0.01	0.36
	0.75	0.02	< 0.01	ADIN	-0.247	0.043	< 0.01	0.54
SID Tryptophan	-0.24	0.04	< 0.01	Trp	1.767	0.219	< 0.01	0.70
	-0.04	0.03	0.19	Lys:CP	0.061	0.011	< 0.01	0.51
SID Valine	-0.88	0.50	0.08	Val	1.438	0.400	< 0.01	0.31
	0.24	0.11	0.04	Lys:CP	0.246	0.042	< 0.01	0.54

¹n = 31 observations; for all models P < 0.01.

²ADIN, acid detergent insoluble nitrogen; Arg, Arginine; His, Histidine; Ile, Isoleucine; Leu, Leucine; Lys, Lysine; Met, Methionine; Phe, Phenylalanine; Thr, Threonine; Trp, Tryptophan; Val, Valine.