. 2020 Mar 11;99(5):2581–2594. doi: 10.1016/j.psj.2019.12.049

Table 3.

Effect of meat and bone meal, phytase, antibiotics, and necrotic enteritis on relative organ weight (% of BW), day 42 post-hatch.

Effects	MBM	Phy	AB	Gizzard + digesta	Liver	Fat pad	Breast	Ileum	Leg
2-way interactions
MBM*AB
	−		−	1.71^a,b	2.31	0.71	18.78	0.90	19.12
	−		+	1.82^a	2.30	0.71	19.40	0.76	20.22
	+		−	1.87^a	2.29	0.62	17.10	0.80	20.40
	+		+	1.58^b	2.25	0.73	18.42	0.70	20.31
Phy*AB
		500	−	1.52^b	2.25	0.69	18.43	0.84	19.18
		500	+	1.66^b	2.31	0.74	19.03	0.72	20.68
		1,500	−	2.05^a	2.35	0.64	17.45	0.87	20.34
		1,500	+	1.74^a,b	2.25	0.70	18.81	0.73	19.18
MBM			−	1.77	2.31	0.71	19.09	0.83^a	19.67
			+	1.72	2.27	0.68	17.77	0.74^b	20.36

AB			−	1.77	2.30	0.67	17.94	0.85^a	19.76
			+	1.70	2.28	0.72	18.92	0.73^b	20.27
P > f
MBM				0.686	0.874	0.445	0.105	0.011	0.183
Phy				0.006	0.812	0.443	0.489	0.588	0.655
AB				0.462	0.694	0.241	0.234	0.001	0.296
MBM × Phy				0.999	0.805	0.465	0.820	0.525	0.224
MBM × AB				0.043	0.909	0.268	0.717	0.683	0.241
Phy × AB				0.033	0.346	0.964	0.759	0.732	0.066
MBM × Phy × AB				0.893	0.276	0.371	0.756	0.938	0.373

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

2- or 3-way interaction separated by Tukey.

Abbreviations: AB, antibiotics; AB, salinomycin 60 ppm in S, G, F; Zn bacitracin 100 ppm in S, G and 50 ppm in F; MBM, meat and bone meal; Phy, phytase (Quantum Blue 5G).