Table 2.

Composition and nutrient content of experimental diets

Item	Dietary treatment1
	Basal	FFRB	DFRB	CGF	CGM
Ingredients, %
Corn	71.67	49.58	49.58	49.58	49.58
Soybean meal	24.95	17.26	17.26	17.26	17.26
FFRB	–	30.00	–	–	–
DFRB	–	–	30.00	–	–
CGF	–	–	–	30.00	–
CGM	–	–	–	–	30.00
Dicalcium phosphate	0.90	0.90	0.90	0.90	0.90
Limestone	0.90	0.90	0.90	0.90	0.90
Salt	0.35	0.35	0.35	0.35	0.35
Vitamin and mineral premix2	0.50	0.50	0.50	0.50	0.50
Lys-HCl	0.50	0.35	0.35	0.35	0.35
Met	0.07	0.05	0.05	0.05	0.05
Thr	0.16	0.11	0.11	0.11	0.11
Calculated composition, as-fed basis
ME, kcal/kg	3,279	3,167	2,890	3,042	3,117
CP, %	15.7	15.1	15.3	17.6	18.0
Analyzed composition3, DM basis
GE, kcal/kg DM	4,448	4,661	4,383	4,474	4,424
CP, %	20.0	18.3	18.8	20.8	22.1
Ether extract, %	3.3	7.5	2.8	3.4	2.7
Starch, %	53.9	46.4	45.2	39.7	41.9
TDF, %	14.1	18.6	21.7	24.5	21.2
SDF, %	2.1	2.9	1.9	2.4	2.1
IDF, %	12.0	15.7	19.8	22.1	19.1
SDF/TDF, %	14.8	15.7	8.6	10.0	10.0
NDF, %	12.9	20.1	22.2	21.3	22.1
ADF, %	4.13	5.55	10.66	6.49	6.23
Ash, %	5.03	6.76	7.68	6.43	6.41
Ca, %	0.65	0.68	0.65	0.76	0.63
Total P, %	0.52	0.87	0.75	0.70	0.76

¹Basal = corn–soybean meal basal diet; FFRB = full-fat rice bran diet; DFRB = defatted rice bran diet; CGF = corn gluten feed diet; CGM = corn germ meal diet.

²Premix provided the following per kilogram of complete diet: vitamin A as retinyl acetate, 5,512 IU; vitamin D₃ as cholecalciferol, 2,200 IU; vitamin E as DL-alpha-tocopheryl acetate, 30 IU; vitamin K₃ as menadione nicotinamide bisulfite, 2.2 mg; vitamin B₁₂, 27.6 µg; riboflavin, 4 mg; pantothenic acid as DL-calcium pantothenate, 14 mg; niacin, 30 mg; choline chloride, 400 mg; folacin, 0.7 mg; thiamin as thiamine mononitrate, 1.5 mg; pyridoxine as pyridoxine hydrochloride, 3 mg; biotin, 44 µg; Mn as MnO, 40 mg; Fe as FeSO₄·H₂O, 75 mg; Zn as ZnO, 75 mg; Cu as CuSO₄·5H₂O, 25 mg; I as KI, 0.3 mg; Se as Na₂SeO₃, 0.3 mg.

³TDF = total dietary fiber; SDF = soluble dietary fiber; IDF = insoluble dietary fiber.