Table 10.

Apparent total tract retention (ATTR, %) of dry matter, gross energy, and apparent ileal digestibility (AID, %) of crude protein and amino acids (AA) for the basal and test diets containing 30% inclusion of B. napus or B. juncea extruded-expelled cake or solvent-extracted meal fed to laying hens in Experiment 2.¹

		Brassica napus		Brassica juncea		Pooled	P-value
	Basal	Meal	Cake	Meal	Cake	SEM	Diet
ATTR, %
Dry matter	68.88a	61.61b	64.87b	63.07b	64.87b	1.23	0.009
Gross energy	77.43a	68.30b	71.49b	70.37b	71.92b	1.58	0.005
AID, %
Crude protein	80.55a	77.28b	75.65b	76.79b	76.91b	0.70	<0.001
Indispensable AA
Arginine	87.52a	88.19a	85.90b	88.26a	88.63a	0.42	<0.001
Histidine	85.02a	83.90a	80.21b	84.26a	83.92a	0.61	<0.001
Isoleucine	86.02a	81.99b	80.16c	81.33b,c	81.09b,c	0.59	<0.001
Leucine	89.94a	86.00b	84.60b	85.19b	85.68b	0.61	<0.001
Lysine	84.13a	81.80b	79.96c	80.11b,c	81.47b,c	0.58	<0.001
Methionine	91.92a	90.73a,b	88.94c	89.80b,c	89.36c	0.44	<0.001
Methionine + Cysteine	87.69a	84.92b	82.70c	83.59b,c	83.37b,c	0.62	<0.001
Phenylalanine	89.46a	86.64b	86.01b	86.53b	87.14b	0.51	<0.001
Threonine	75.39a	73.89a–c	71.97c	74.17a,b	73.20b,c	0.79	0.031
Tryptophan	86.27c	89.57a	87.49b,c	88.74a,b	89.27a,b	0.67	0.013
Valine	86.31a	81.71b	80.55b	81.22b	81.63b	0.68	<0.001
Dispensable AA
Alanine	87.63a	84.86b	83.25c	84.27b,c	84.04b,c	0.55	<0.001
Aspartic acid	81.48a	80.07a,b	76.96c	80.56a	78.82b	0.60	<0.001
Cysteine	82.21a	78.36b	75.31c	76.31b,c	76.65b,c	0.92	<0.001
Glutamic acid	88.48a	87.44a,b	85.38c	86.95b	86.72b,c	0.50	0.004
Glycine	76.85a,b	77.16a	73.63c	76.45a,b	75.11b,c	0.69	0.010
Proline	85.87a	79.12b	79.32b	78.94b	80.91b	0.80	<0.001
Serine	83.03a	79.99b	77.85c	80.15b	78.71b,c	0.67	<0.001
Tyrosine	86.42a	83.16b,c	81.67c	83.11b,c	83.52b	0.57	<0.001
Total amino acids	84.37a	81.49b	79.79c	80.97b,c	81.17b,c	0.58	<0.001

¹LSmeans based on 6 replicate test cages of 8 hens per test diet.

^a–cMeans within a row lacking a common superscript letter differ (P < 0.05).