Table 3.

Effects of replacing soybean products in chicken grower diets with graded levels of canola meal (CM) on relative organ weight (% HCW) in 18-wk old Potchefstroom Koekoek cockerels.

	Diets1						Significance
Organ	CM0	CM1	CM2	CM3	CM4	SEM	Linear	Quadratic
Heart	0.70	0.73	0.80	0.64	0.73	0.04	NS	NS
Liver	2.11	1.91	1.99	1.85	1.78	0.08	**	NS
Spleen	0.31	0.33	0.34	0.31	0.29	0.02	NS	NS
Proventriculus	0.71	0.76	0.75	0.67	0.66	0.06	NS	NS
Gizzard	2.61	2.78	2.49	2.46	2.71	0.18	NS	NS
Caecum	0.58	0.66	0.70	0.64	0.92	0.11	NS	NS
Small intestines	10.10	10.42	10.44	10.70	10.94	0.26	*	NS

NS = not significant; *P < 0.05; **P < 0.01

SEM = Standard error of the mean.

¹Diets: CM0 = a grower diet without CM; CM1 = a grower diet in which 3.75% of soybean ingredients were replaced with CM; CM2 = a grower diet in which 6.25% of soybean ingredients were replaced with CM; CM3 = a grower diet in which 8.75% of soybean ingredients were replaced with CM; CM4 = a grower diet in which 17.5% of soybean ingredients were replaced with CM.