Table 2.

Impacts of bunk management and either 25% or 50% dietary MDGS inclusion (DM basis) on feedlot performance and carcass characteristics of steers

	Bunk management1		MDGS inclusion2		SE	P-Values3
	CON	OVF	25	50		Bunk	MDGS	Bunk × MDGS
Feedlot performance4
Initial BW, kg	444.6	446.9	447.7	443.9	5.04	0.75	0.60	0.78
Final BW, kg	635.5	635.0	637.4	632.9	6.60	0.96	0.65	0.53
DMI d 0–28, kg/d	9.6	10.2	9.4	9.7	0.30	0.17	0.50	0.17
DMI d 0–104, kg/d	13.0	13.3	13.4	12.9	0.19	0.37	0.09	0.87
ADG, kg/d	1.9	1.8	1.8	1.8	0.05	0.67	0.94	0.56
G:F5	0.14	0.14	0.14	0.14	0.006	0.39	0.43	0.67
Carcass characteristics
HCW6, kg	384.4	385.4	386.3	383.6	3.92	0.86	0.63	0.68
Ribeye area, cm2	83.8	77.9	83.7	84.5	1.36	0.76	0.73	0.48
Marbling score7	502	496	499	500	11.5	0.72	0.97	0.82
Back fat, cm	1.30	1.17	1.25	1.22	0.042	0.04	0.59	0.56
Yield grade	3.2	3.0	3.1	3.1	0.08	0.03	0.94	0.33
Quality grade8	10.5	10.4	10.5	10.4	0.11	0.67	0.48	0.64

¹Treatment abbreviations: CON = bunks devoid of feed prior to next feeding, LONG = bunks with >2.54 cm of feed remaining at time of next feeding.

²MDGS inclusion was 25% of 50% DM basis.

³ P-Values for effects of bunk management (Bunk), MDGS inclusion rate (MDGS), and the interaction of bunk management and MDGS inclusion.

⁴BW = body weight, DMI = dry matter intake, ADG = average daily gain.

⁵G:F = kg of weight gain:kg of dry feed intake for d 0 to 104.

⁶Hot carcass weight.

⁷Marbling score based on 400 = Small⁰⁰, 500 = Modest⁰⁰.

⁸Quality grades based on Low Choice (Ch⁻) = 10, High Prime (Pr⁺) = 15.