Table 1.

Composition and nutrient levels of basal diets and fermentation substrates (DM basic).

Items	Content (%)
Ingredients
Wheat straw	50
Corn	12.5
Soybean meal	4.35
Unhusked rice	14
Wheat bran	7
Oil bran	3.5
Sprayed corn husk	1
Soybean germ powder	1.5
Brow rice	1.5
Soybean husk	1
Rumen undegradable fat powder	0.15
Expanded urea	0.4
Unified bran	0.625
Premix a	2.475
Total	100
Nutrient levels b
DM	91.89
CP	10.99
EE	3.00
NDF	69.95
ADF	32.26
Ash	10.69
Ca	0.81
P	0.25

^a Every 1 kg of premix contained 250,000 IU of vitamin A, 50,000 IU of vitamin D3, 800 IU of vitamin E, 0.9 g of CuSO₄, 12 g of FeSO₄, 14 g of MnSO₄, 10 g of ZnSO₄, 0.03 g of Na₂SeO₄, 0.02 g of KI, 0.02 g of CoCl₂, 55 g of MgSO₄. ^b The nutritional levels of the diets in the table are all measured values. DM, dry matter; CP, crude protein; EE, ether extract; NDF, neutral detergent fibres; ADF, acid detergent fibres; Ca, calcium; P, phosphorus.