Dietary encapsulated essential oils and organic acids mixture improves gut health in broiler chickens challenged with necrotic enteritis

Table 4 Effect of BLJ on growth performance of broiler chickens challenged with NE

Items	Experimental design				SEM⁵	Main effect				P-value⁶
Items	A¹	D ²	B³	G⁴		0	500	Non-challenge	Challenged	Treatment	Challenged	T×C
d 1 to 21
BWG, g/bird	870	655	857	647	21.40	763	752	864^a	651^b	0.449	< 0.01	0.843
AFI, g/bird	1249	1047	1246	1057	20.14	1148	1151	1248^a	1052^b	0.842	< 0.01	0.676
FCR, g/g	1.44	1.60	1.45	1.64	0.02	1.52	1.55	1.44^b	1.62^a	0.085	< 0.01	0.533
d 22–42
BWG, g/bird	1904	1891	1883	1919	29.59	1898	1901	1894	1905	0.955	0.844	0.681
AFI, g/bird	3095^a	3114^a	2684^b	3083^a	39.40	3104	2883	2890	3098	0.010	0.015	0.025
FCR, g/g	1.63^a	1.65^a	1.43^b	1.60^a	0.01	1.64	1.51	1.53	1.62	< 0.01	< 0.01	< 0.01
d 1 to 42
BWG, g/bird	2774	2546	2740	2566	34.08	2660	2653	2757^a	2556^b	0.918	0.008	0.696
AFI, g/bird	4344	4161	3931	4140	55.89	4252^a	4035^b	4137	4151	0.033	0.890	0.050
FCR, g/g	1.54^b	1.63^a	1.44^c	1.62^a	0.01	1.59	1.53	1.50	1.63	< 0.01	< 0.01	< 0.01

^{a, b} Means within the same row without a common superscript differ significantly (P < 0.05)
¹A neither BLJ treatment nor NE infection
²D NE infection but without BLJ treatment
³B BLJ treatment at 500 mg/kg of feed but without NE infection
⁴G both BLJ treatment and NE infection
⁵SEM standard error of the mean
⁶P-values represent the main effect of the diet, the main effect of the NE challenge, and the interaction between the dietary treatments and NE challenge; BWG: body weight gain, g/bird; AFI: average feed intake, g/bird; FCR: feed conversion ratio, g of feed intake/g of BW gain, g/g; T×C: treatment and challenged

ISSN: 2049-1891