Table 2.

Ingredient composition and analyzed nutrient content of experimental diets¹, Exp. 2

			Extruded CM
Item, % as-fed	SBM	CM	CM-250	CM-350	CM-450
Wheat	68.32	65.89	65.89	65.89	65.89
SBM	20.00	—	—	—	—
CM	—	20.00	20.00	20.00	20.00
Menhaden fish meal	5.00	5.00	5.00	5.00	5.00
Soy protein concentrate2	2.50	2.50	2.50	2.50	2.50
Canola oil	—	2.12	2.12	2.12	2.12
Limestone	0.80	0.63	0.63	0.63	0.63
Celite3	0.80	0.80	0.80	0.80	0.80
Salt	0.75	0.75	0.75	0.75	0.75
Mono/di-calcium phosphate	0.55	0.60	0.60	0.60	0.60
Vitamin premix4	0.50	0.50	0.50	0.50	0.50
Mineral premix5	0.50	0.50	0.50	0.50	0.50
l-Lys HCl, 78%	0.15	0.46	0.46	0.46	0.46
l-Thr, 99%	0.08	0.15	0.15	0.15	0.15
l-Trp, 99%	—	0.07	0.07	0.07	0.07
dl-Met, 99%	0.03	0.01	0.01	0.01	0.01
Choline chloride, 60%	0.03	0.03	0.03	0.03	0.03
Analyzed nutrient content6, % DM
Moisture	11.5	11.5	11.2	11.7	11.4
Starch	39.1	35.8	39.3	38.9	41.8
CP (N × 6.25)	29.6	27.8	26.7	26.2	27.0
NDF	9.6	13.7	14.9	14.6	13.8
ADF	4.2	7.1	7.4	7.4	7.2
Ash	7.04	6.38	6.49	6.68	6.45
Ether extract	1.42	4.16	4.21	3.96	4.08
GE, Mcal/kg DM	4.46	4.60	4.60	4.59	4.61

¹SBM, soybean meal; CM, canola meal, ground but not extruded; CM-250, CM extruded at 250 rpm screw speed; CM-350, CM extruded at 350 rpm screw speed; CM-450, CM extruded at 450 rpm screw speed.

²HP300 (Hamlet Protein Inc., Findlay, OH).

³Celite 281 (World Minerals Inc., Santa Barbara, CA) used as acid-insoluble ash.

⁴Provided the following per kilogram of diet: vitamin A, 7,500 IU; vitamin D, 750 IU; vitamin E, 50 IU; niacin, 37.5 mg; pantothenic acid, 15 mg; folacin, 2.5 mg; riboflavin, 5 mg; pyridoxine, 1.5 mg; thiamine, 2.5 mg; choline, 2,000 mg; vitamin K, 4 mg; biotin, 0.25 mg; and vitamin B₁₂, 0.02 mg.

⁵Provided the following per kilogram of diet: Zn, 125 mg as ZnSO₄; Cu, 50 mg as CuSO₄; Fe, 75 mg as FeSO₄; Mn, 25 mg as MnSO₄; I, 0.5 mg as Ca(IO₃)₂; and Se, 0.3 mg as Na₂SeO₃.

⁶Diets were formulated to provide (as-fed): 2.41 Mcal NE/kg, 1.23% SID Lys, 0.36% SID Met, 0.73% SID Thr, and 0.20% SID Trp.