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Table 5 Dry matter (DM), energy, and nitrogen (N) digestibility and total tract retention of broilers fed the experimental diets containing expeller-extracted canola meal (EECM) or solvent extracted canola meal (SECM) levels at 0, 100, 200 g/kg

From: Determination of ileal digestible and apparent metabolizable energy contents of expeller-extracted and solvent-extracted canola meals for broiler chickens by the regression method

Item 0 EECM SECM SEM P value
100 200 100 200 La Qa Lb Qb
Ileal DM digestibility (%) 72.1 66.9 67.1 71.3 67.9 0.598 <0.001 0.002 <0.001 0.086
Total tract DM retention (% of DM intake) 66.9 64.9 62.2 66.3 60.4 1.623 0.057 0.852 0.012 0.200
Ileal N digestibility (%) 82.9 80.8 82.3 82.3 80.5 0.701 0.530 0.046 0.028 0.499
Total tract N retention (% of N intake) 55.8 57.0 54.0 56.6 50.3 2.828 0.655 0.550 0.191 0.325
Total tract N retention (mg/g of DM intake) 22.2 22.7 21.5 22.5 20.0 1.126 0.656 0.550 0.191 0.325
Ileal energy digestibility (%) 76.0 72.1 72.1 75.7 73.1 0.520 <0.001 0.007 0.001 0.087
Total tract energy retention (% energy intake) 73.7 72.1 70.1 73.2 68.3 1.227 0.052 0.933 0.007 0.164
IDE (kcal/kg of DM) 3485 3358 3399 3498 3399 24 0.024 0.013 0.024 0.078
AME (kcal/kg of DM) 3379 3355 3304 3382 3178 57 0.362 0.846 0.024 0.156
AMEn (kcal/kg of DM) 3196 3168 3127 3198 3013 49 0.332 0.914 0.018 0.141
  1. SEM standard error of the mean, IDE ileal digestible energy, AME apparent metabolizable energy, AME n nitrogen-corrected AME
  2. aLinear (L) and quadratic (Q) contrasts for the EECM
  3. bLinear (L) and quadratic (Q) contrasts for the SECM