Table 1. Experimental design and composition of TMRs in the experiment

Items	Control	T1	T2	T3
No. of cows	6	6	6	6
SCCF (2×107 CFU/mL)	-	5 mL/head	-	5 mL/head
Experimental diets	TMR-1		TMR-2
Ingredient (% of DM)
Concentrates	38.54		39.59
Corn	7.73		7.95
Full-fat soybeans	4.03		2.07
DDGS	5.41		1.85
Corn silage	11.84		12.17
Whole crop barley silage	19.19		16.43
Rice silage	10.91		7.47
Alfalfa	-		10.06
Minerals and vitamins	2.35		2.41
Chemical compositions (% of DM)
Crude protein	15.15		14.77
Ether extract	5.04		5.75
Crude fiber	18.20		17.79
Crude ash	10.40		9.98
NDF	33.09		33.14
ADF	26.18		24.50
Ca	1.28		1.25
P	0.39		0.51
NEL (Mcal/kg DM)	1.46		1.49
RFV	192.58		195.97
RFQ	5.31		5.40

TMR, total mixed ration; SCCF, Saccharomyces cerevisiae culture fluid (Agriculture Technology Center, Anseong, Korea); DM, dry matter; DDGS, dried distiller’s grains with solubles; NDF, neutral detergent fiber; ADF, acid detergent fiber; NE_L, net energy for lactation; RFV, relative feed value; RFQ, relative feed quality