Table 10.

Effect of blue lupine and probiotics on small intestine parts of broiler chickens at 21 and 35 d of age.

Treatment	Small intestine, %		Small intestine length, %		Small intestine, weight/length		Ceca weight, %		Ceca length,%		Ceca weight/length
Age (d)	21	35	21	35	21	35	21	35	21	35	21	35
Effect of dietary blue lupine concentration
Control (0%)	4.65	3.75	18.7	8.17	0.25	0.46b	1.31	0.82	2.09	1.83	0.62	0.46
20%	4.35	4.11	17.7	8.22	0.26	0.50a	1.41	0.951	2.07	1.92	0.66	0.50
30%	5.01	3.99	18.1	8.84	0.28	0.46b	1.61	0.890	2.15	1.91	0.73	0.47
Effect of dietary probiotics
Probiotic (–)	4.77	3.97	19.1a	8.53	0.25	0.47	1.45	0.878	2.17	1.85	0.65	0.48
Probiotic(+)	4.58	3.93	17.2b	8.29	0.27	0.48	1.43	0.892	2.03	1.92	0.69	0.47
Interaction between blue lupine concentration and probiotics
0 (–)	4.65	3.62	19.7ab	8.30	0.24	0.44bc	1.16b	0.722	2.00b	1.72	0.56	0.45
0 (+)	4.65	3.88	17.7bc	8.04	0.26	0.48ab	1.47ab	0.908	2.18ab	1.93	0.67	0.47
20 (–)	4.03	4.16	17.5bc	8.66	0.23	0.48ab	1.30b	0.891	2.02b	1.87	0.61	0.48
20 (+)	4.68	4.06	17.9abc	7.78	0.26	0.52a	1.52ab	1.01	2.12ab	1.96	0.70	0.52
30 (–)	5.63	4.14	20.1a	8.62	0.28	0.48ab	1.90a	1.02	2.51a	1.96	0.77	0.53
30 (+)	4.40	3.84	16.2c	9.06	0.28	0.43c	1.31b	0.768	1.80b	1.87	0.70	0.41
P-values
Blue lupine (A)	0.22	0.20	0.42	0.13	0.26	0.04	0.23	0.40	0.84	0.70	0.37	0.76
Probiotic (B)	0.53	0.77	0.01	0.42	0.26	0.55	0.88	0.87	0.25	0.45	0.51	0.68
Interaction A × B	0.06	0.37	0.04	0.19	0.75	0.02	0.03	0.06	0.02	0.45	0.50	0.33
RMSE	0.73	0.44	1.53	0.78	0.04	0.04	0.33	0.22	0.30	0.27	0.16	0.12

^a,bMeans for each trait with different superscripts differ significantly at p < 0.05.