Table 1.

Composition and nutrient levels (g/kg dry matter) of experimental diets.

Ingredients	Content (g/kg DM)
Chinese wildrye	125.0
Alfalfa hay	165.0
Corn silage	210.0
Corn	208.6
Wheat bran	98.7
Soybean meal	39.7
DDGSa	33.3
Cottonseed meal	40.3
Rice hull powder	42.9
Rumen – protected fatb	16.5
Premixc	20.0
total	1,000.0
Nutrient levels
DM	896.4
NE${}_{\text{L}}^{\text{d}}$, Mcal/kg DM	1.41
CP	153.5
EE	42.8
NDF	365.6
ADF	222.1
Ash	104.3
Ca	9.2
P	4.6

DM, dry matter; CP, crude protein; EE, ether extract; NDF, neutral detergent fiber; ADF, acid detergent fiber; Ca, calcium; P, phosphorus.

^aDDGS, dried distillers grains with solubles.

^bRumen – protected fat was palm oil fatty acids containing 985 g/kg EE.

^cPremix provided the following per kg of diet: VA 30 150 IU, VD 9 675 IU, VE 76.5 mg, Fe 132 mg, Cu 26 mg, Mn 118.30 mg, Zn 166 mg, Se 0.07 mg, I 0.11 mg, Co 0.03 mg, Ca 6.76 g, and P 0.68 g.

^dNE_L was a calculated value, while other nutrient levels were measured values.