Table 7.

SID of CP and AA of experimental diets^1,2, exp. 1

						P-value
		Extruded CM					Extruder speed5
Item, %	CM	CM-250	CM-350	CM-450	SEM3	Extrusion of CM4	Linear	Quadratic
CP	78.9	82.3	80.2	82.2	1.57	0.056	0.938	0.162
Indispensable AA
Arg	86.9	92.2	91.0	92.2	0.96	<0.001	0.985	0.193
His	85.9	88.9	88.0	89.0	1.03	0.005	0.979	0.297
Ile	80.3	84.0	81.9	83.2	1.32	0.025	0.549	0.160
Leu	82.6	86.7	84.8	85.9	1.22	0.006	0.539	0.169
Lys	83.1	85.8	83.4	85.2	1.18	0.110	0.589	0.060
Met	88.2	92.7	91.8	92.7	0.68	<0.001	0.988	0.151
Phe	82.9	86.9	85.1	86.2	1.15	0.005	0.592	0.173
Thr	79.2	81.8	79.7	81.5	1.66	0.205	0.883	0.205
Trp	86.4	89.4	88.3	90.3	0.94	0.002	0.374	0.083
Val	77.7	82.8	80.4	82.0	1.43	0.004	0.579	0.139
Dispensable AA
Ala	82.4	85.8	83.3	85.1	1.38	0.055	0.617	0.096
Asp	78.5	84.9	82.6	84.8	1.46	<0.001	0.973	0.089
Cys	78.5	79.4	78.1	80.5	2.30	0.676	0.613	0.373
Glu	87.0	90.7	89.7	90.8	0.97	0.001	0.960	0.246
Gly	79.0	82.2	79.1	82.0	1.72	0.158	0.882	0.062
Pro	76.7	79.1	75.7	78.6	2.54	0.604	0.851	0.172
Ser	81.7	84.5	82.7	84.5	1.58	0.110	0.999	0.204
Tyr	84.5	87.8	86.3	87.3	1.13	0.011	0.660	0.212
Total AA	83.2	87.9	85.9	87.6	1.41	0.004	0.838	0.142

¹Diets contained 50% canola 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.

²The SID of CP and AA was calculated by correcting the AID of CP and AA with the measured basal Iend (g/kg DM intake): CP, 11.82; Arg, 0.33; His, 0.15; Ile, 0.31 Leu, 0.53; Lys, 0.39; Met, 0.09; Phe, 0.30; Thr, 0.54; Trp, 0.12; Val, 0.42; Ala, 0.40; Asp, 0.70; Cys, 0.20; Glu, 0.77; Gly, 0.77; Pro, 0.78; Ser, 0.40; Tyr, 0.21; and total AA, 7.50.

³Least square means based on eight observations per treatment.

⁴Contrast CM vs. three extruded CM.

⁵Analyzed using contrast for the three extruded CM diets.