. 2020 Apr 20;6(3):313–324. doi: 10.1016/j.aninu.2020.03.004

Table 5.

Effect of necrotic enteritis (NE), phytase (Phy) and meat and bone meal (MBM) on the performance of broilers.

Item	Factors			Day 21				Day 28
Item	NE	Phy	MBM	WG, g	FCR	FI, g	Livability, %	WG, g	FCR	FI, g	Livability, %
Two-way interactions¹
NE × Phy	–	500		904^a	1.273	1,102^a	98	1,551	1.325	2,004	97
	–	5,000		924^a	1.267	1,122^a	98	1,548	1.333	2,013	96
	+	500		680^b	1.476	945^b	95	1,210	1.512	1,744	95
	+	5,000		656^b	1.466	904^b	93	1,253	1.409	1,700	92
NE × MBM	–		AR	925^a	1.256^c	1,114	97	1,557^a	1.323	2,009^a	95
	–		OP	903^a	1.285^c	1,111	99	1,542^a	1.335	2,009^a	97
	+		AR	700^b	1.431^b	948	95	1,318^b	1.399	1,776^b	93
	+		OP	635^c	1.511^a	901	93	1,145^c	1.523	1,668^c	93
Main effect
NE	–			913	1.270	1,112	98^a	1,549	1.329^b	2,009	96
NE	+			668	1.471	924	94^b	1,231	1.461^a	1,721	93
MBM			AR	813	1343	1031	96	1,437	1.361^b	1,892	94
MBM			OP	769	1.398	1006	96	1,344	1.429^a	1,838	95
P-value
NE				0.001	0.001	0.001	0.015	0.001	0.001	0.001	0.078
Phy				0.839	0.357	0.445	0.613	0.510	0.122	0.405	0.235
MBM				0.001	0.001	0.082	0.866	0.003	0.030	0.015	0.550
NE × Phy				0.048	0.827	0.034	0.400	0.450	0.075	0.212	0.550
NE × MBM				0.050	0.007	0.119	0.134	0.012	0.073	0.015	0.550
Phy × MBM				0.992	0.138	0.530	0.400	0.518	0.196	0.649	0.550
NE × Phy × MBM				0.534	0.239	0.911	0.241	0.815	0.634	0.739	0.550

WG = weight gain; FCR = feed conversion ratio; FI = feed intake; AR = as-received; OP = over-processed.

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

Two-way interaction was separated by Tukey's mean separation test.