Table 6.

Effects of corn stored for different years on energy and nutrient metabolism in female broiler chickens at 3 wk of age (Exp. 2).¹

Item	Corn storage time, yr				SEM	P-value
	2	3	4	5		Linear	Quadratic
ME, MJ/kg as-fed	13.50	13.59	13.50	13.42	0.057	0.473	0.660
ME, MJ/kg DM	15.30	15.34	15.17	15.30	0.064	0.853	0.811
Digestibility, %
Starch	91.64	82.62	91.40	90.02	0.023	0.726	0.136
CP	76.50	75.83	79.17	77.33	0.010	0.889	0.637
Amino acids
Asp	79.17	81.67	77.67	76.75	0.012	0.843	0.740
Thr	73.33	75.83	71.50	70.83	0.014	0.329	0.445
Ser	80.17	82.67	80.50	80.00	0.011	0.235	0.468
Glu	88.67	89.07	87.33	88.00	0.007	0.780	0.324
Pro	85.33	87.83	84.33	85.67	0.008	0.514	0.965
Ala	85.83	88.00	85.00	86.17	0.008	0.685	0.824
Cys	83.83	84.33	83.17	82.83	0.007	0.588	0.533
Val	79.50	80.33	77.00	77.17	0.011	0.261	0.674
Met	84.50	77.80	84.83	86.17	0.019	0.129	0.866
Iso	82.17	84.50	81.17	82.33	0.010	0.172	0.057
Leu	87.33	88.17	86.50	87.50	0.006	0.764	0.755
Tyr	80.17	83.67	78.17	80.83	0.016	0.880	0.971
Phe	80.83	75.17	82.83	77.33	0.016	0.763	0.779
Lys	71.83	88.50	79.83	86.83	0.016	0.765	0.830
His	89.30c	93.67a	90.83b	90.17b	0.009	0.001	0.029
Arg	87.00	89.17	86.83	86.67	0.012	0.915	0.025
Fatty acids
C16:0	69.11	70.80	68.78	68.78	0.022	0.590	0.498
C16:1	59.00	53.40	58.00	55.60	0.067	0.683	0.399
C18:0	37.00	38.50	30.50	35.80	0.043	0.487	0.202
C18:1	70.68	68.33	64.50	69.83	0.021	0.683	0.150
C18:2	79.67	82.83	69.00	79.00	0.037	0.068	0.028
C18:3	81.17c	90.83a	71.00d	86.67ab	0.026	0.004	0.001

^a–d Means within a row lacking a common superscript differ (P < 0.05).

¹Data are means of 6 replicates per treatment and 3 broiler chickens per replicate.