Table 1.

Analyzed chemical composition of forages commonly used in Korea (g/kg on DM basis)

Forages	Components (g/kg on DM basis)
	DM (g/kg as fed)	CP	EE	Ash	aNDF	ADF	ADL	NDICP	ADICP	NFC	TDN1x
Locally produced forages
Chungcheong, central region
Corn silage	445	89	28	59	601	273	23	24	6	247	662
Italian ryegrass	312	134	24	91	626	455	49	15	13	140	561
Sudangrass	313	39	13	64	739	568	50	14	10	159	541
Rice straw	673	53	11	79	808	644	81	16	6	65	460
Ryegrass	235	86	27	78	756	594	47	21	12	75	549
Jeolla, southern region
Corn silage	207	75	15	62	717	468	30	24	17	152	588
Italian ryegrass	580	134	30	79	726	604	36	30	9	62	585
Sudangrass	369	62	18	87	741	586	54	22	11	115	521
Rice straw	566	44	20	131	791	619	84	18	6	32	421
Barley silage	400	66	18	63	814	446	42	21	14	62	543
Imported forages
Alfalfa hay	906	189	19	93	509	297	52	55	48	246	561
Timothy hay	903	101	20	59	695	497	40	28	12	152	588
Kline hay	914	85	15	71	577	490	32	30	15	282	616
Ryegrass straw	809	46	8	53	769	636	47	20	7	143	551
Pine fescue straw	856	55	14	32	752	589	63	14	9	161	550
Tall fescue straw	955	64	10	67	743	433	55	26	7	142	534
p-value of the differences in means
Forage	-	0.02	0.70	0.49	0.14	0.19	0.04	0.11	0.08	0.03	0.11
Region	-	<0.93	0.74	0.33	0.23	0.21	0.96	0.16	0.58	0.02	0.28

DM, dry matter; CP, crude protein; EE, ether extract; aNDF, neutral detergent fiber using a heat stable α-amylase without sodium sulfite and expressed inclusive of residual ash; ADF, acid detergent fiber; ADL, acid detergent lignin; NDICP, neutral detergent insoluble crude protein; ADICP, acid detergent insoluble crude protein; NFC, non-fiber carbohydrates; TDN_1x, total digestible nutrient at 1× maintenance feed intake.