Table 2.

Effect of different dietary levels of concentrate on intake, average daily gain and digestibility in Angus cows.

Items	Diets1
	LCD	MCD	HCD	P-value
Dry matter intake (DMI), kg/d	8.36 ± 0.26c	9.51 ± 0.22b	10.59 ± 0.31a	0.039
Average daily gain, kg/d	0.74 ± 0.092b	1.03 ± 0.017a	1.12 ± 0.075a	0.018
Nutrient digestibility, %
Dry matter	62.5 ± 2.86c	68.3 ± 1.61b	73.0 ± 3.74a	0.015
Organic matter	59.1 ± 3.81b	63.4 ± 2.93ab	67.3 ± 4.76a	< 0.001
Crude protein	53.5 ± 1.09c	57.3 ± 0.86ac	62.7 ± 1.17a	< 0.001
Ether extract	59.0 ± 3.72	57.2 ± 2.33	61.0 ± 3.82	0.426
Acid detergent fiber	64.6 ± 5.78	64.2 ± 2.69	62.8 ± 2.01	0.581
Neutral detergent fiber	66.9 ± 2.07a	63.1 ± 3.53a	58.5 ± 1.66b	0.036

^a,b,cMeans bearing different superscripts in the same row differ significantly (P < 0.05).

¹LCD, 35:65 concentrate:forage; MCD, 50:50 concentrate:forage; HCD, 65:35 concentrate:forage;