Table 8.

Effect of meat and bone meal, phytase, and antibiotics levels on the ash, weight (% body weight), breaking strength, K, Fe, Mn, and Zn of tibia, day 42.

Effects	MBM	Phy	AB	Tibial ash (%)	Tibial wt. % body weight	Tibial breaking strength (N)	K %	Fe mg/kg	Mn mg/kg	Zn mg/kg
2-way interactions
MBM*Phy	−	500		44.41	0.48	346	0.79a,b	358	15.1b	443b
	−	1,500		43.79	0.51	362	0.82a	373	17.6a	515a
	+	500		45.43	0.53	406	0.87a	349	11.1c	399b,c
	+	1,500		45.92	0.54	424	0.76b	335	10.0c	389c
		500	−	45.33	0.47b	370	0.81	358	15.1	443
		500	+	44.51	0.53a	382	0.85	373	17.6	515
		1,500	−	45.19	0.52a,b	371	0.77	349	11.1	399
		1,500	+	44.51	0.52a,b	414	0.81	335	10.0	389
Main effects
MBM	−			44.10b	0.49b	354b	0.80	366a	16.4	479
	+			45.68a	0.53a	415a	0.82	342b	10.5	394
Phy		500		44.92	0.50	376	0.83	353	13.1	421
		1,500		44.85	0.52	393	0.79	354	13.8	452
AB			−	45.26	0.50	371	0.79	358	14.2a	429
			+	44.51	0.53	398	0.83	350	12.7b	444
SEM				0.27	0.01	9.75	0.02	5.28	0.54	9.74
P > f
MBM				0.003	0.012	0.000	0.635	0.027	0.000	0.000
Phy				0.893	0.247	0.330	0.235	0.934	0.258	0.027
AB				0.146	0.071	0.120	0.221	0.430	0.016	0.248
MBM × Phy				0.276	0.529	0.927	0.035	0.158	0.004	0.004
MBM × AB				0.904	0.421	0.282	0.336	0.159	0.075	0.334
Phy × AB				0.894	0.043	0.372	0.847	0.946	0.628	0.362
MBM × Phy × AB				0.856	0.315	0.151	0.994	0.671	0.824	0.499

^a,b,cmeans in the same column within a main effect, 2-way interaction or treatment means with different superscripts are different (P < 0.05).

AB = Salinomycin 60 ppm in S, G, F; Zn bacitracin 100 ppm in S, G and 50 ppm in F.

Phy = Phytase (Quantum Blue 5G).

2-way or 3-way interaction separated by Tukey.

Abbreviations: AB, antibiotics; MBM, meat and bone meal.