Table 8.

Relative empty weight and pH of the digestive segment of broilers fed diets with 15% whole RSM (F1), 12% dehulled RSM (F2), and 12% dehulled rapeseed meal with 4.5% (F3) or 9% defatted rapeseed hulls (F4) without (−) or with (+) phytase (Exp2: 21 to 31 d).¹

	RSM		Dehulled RSM							P-value2
					4.5% hulls		9.0% hulls			Microbial phytase effect	Dehulled effect		Hull inclusion effect
Diets	1	2	3	4	5	6	7	8		1,3,5,7 vs. 2,4,6,8,	1 vs. 3	2 vs. 4	3 vs. 5 vs. 7		4 vs. 6 vs. 8
Description	F1-	F1+	F2-	F2+	F3-	F3+	F4-	F4+	SEM	Lin	Lin	Lin	Lin	Qua	Lin	Qua
Weight, g/kg BW
Crop	4.1	4.3	5.0	4.5	4.5	4.7	5.4	5.4	0.19	0.93	0.23	0.83	0.59	0.23	0.25	0.71
PG3	20.4	21.3	19.6	19.7	19.1	18.5	18.2	18.3	0.28	0.084	0.49	0.16	0.19	0.80	0.24	0.64
Duodenum	8.1	7.9	7.0	7.4	7.5	8.2	7.6	8.3	0.11	0.060	0.006	0.19	0.14	0.55	0.022	0.22
Jejunum	13.7	13.3	12.8	13.0	13.2	12.7	13.7	13.4	0.13	0.31	0.074	0.51	0.085	0.91	0.47	0.31
Ileum	10.7	10.1	9.8	9.7	10.0	10.3	10.2	10.1	0.09	0.49	0.011	0.34	0.30	0.81	0.35	0.23
Ceca	2.7	2.7	2.7	2.7	2.6	2.7	2.8	2.9	0.04	0.86	0.99	0.96	0.85	0.36	0.27	0.74
pH
PG3	2.67	2.92	2.93	2.90	3.18	3.25	2.66	3.03	0.05	0.089	0.18	0.94	0.16	0.024	0.48	0.10
Duodenum	5.84	5.92	5.43	5.83	5.40	5.57	5.65	5.44	0.04	0.15	0.012	0.59	0.16	0.26	0.010	0.63
Jejunum	5.94	6.02	5.97	5.98	5.92	5.97	5.90	5.91	0.01	0.15	0.54	0.48	0.18	0.70	0.20	0.58
Proximal ileum	7.51	7.81	7.33	7.68	7.52	7.68	7.42	7.46	0.04	0.008	0.26	0.39	0.59	0.27	0.17	0.43
Ceca	6.14	6.30	6.23	6.46	6.20	6.29	6.25	6.30	0.03	0.024	0.43	0.16	0.80	0.71	0.16	0.42

¹n = 12 per treatments.

²Contrast analysis: linear effect of microbial phytase; linear effect of dehulled rapeseed seed without and with microbial phytase; linear and quadratic effects of the inclusion of hulls without and with microbial phytase.

³Proventriculus-gizzard.