Table 1. Chemical composition (g/kg, DM basis) and estimated price (KRW/kg DM) of each feed ingredient.

	Feed ingredientsa
Item	Ryegrass	Corn	SBM	SCG	FSCG	APR	FAPR
DM (g/kg as fed)	954	907	900	550	925	850	932
CP	81	103	513	138	141	107	103
EE	8	34	15	136	157	18	17
Ash	54	42	62	20	18	91	95
NDF	739	116	237	656	792	649	706
ADF	481	61	105	451	526	538	523
ADL	54	22	26	142	146	99	74
NDICP	46	33	217	105	114	59	47
ADICP	22	32	139	95	100	42	23
NFC	164	738	390	155	6	194	127
Feed priceb (KRW/kg DM)	364	317	660	91	270	235	429

Notes.

^aSBM; soybean meal, SCG; spent coffee grounds, FSCG; fermented spent coffee grounds, APR; Artemisia princeps residues, FAPR; fermented Artemisia princeps residues.

^bThe prices for ryegrass, corn, and SBM are the average market prices in Korea in 2009. The prices of SCG and APR were obtained from the respective manufacturers (Dongseo Food, Inc., and Ganghwa Agricultural R&D Center, respectively). For the prices of FSCG and FAPR, the cost for the fermentation process, including the expenses for microbial strains, culture medium, labor, and use of fermenter instruments was calculated and added to their raw prices.