. 2023 Jun 16;102(9):102874. doi: 10.1016/j.psj.2023.102874

Table 3.

Effects of dietary essential oil supplementation and Eimeria challenge on growth performance of broilers (n = 6).

		1–14 d²			15–28 d			29–42 d			1–42 d
Diet¹	Eimeria¹	Feed intake (g)	BW gain (g)	FCR	Feed intake (g)	BW gain (g)	FCR	Feed intake (g)	BW gain (g)	FCR	Feed intake (g)	BW gain (g)	FCR
Control		322	270^b	1.18	999^a	528^b	1.91	1529^b	752	1.99	2613^ab	1391^c	1.78
Anticoccidial		343	293^ab	1.16	1039^a	583^a	1.73	1671^a	806	2.04	2711^a	1566^a	1.69
Oregano		324	275^b	1.17	888^b	506^b	1.76	1448^b	775	1.91	2463^b	1453^bc	1.70
Clove		342	306^a	1.16	969^a	551^ab	1.84	1524^b	774	1.99	2610^ab	1508^ab	1.74
SEM		7.9	8.8	0.015	27.3	16.6	0.049	47.9	28.3	0.053	56.4	34.9	0.024
	No	331	283	1.17	1000	558	1.80	1538	784	1.98	2597	1479	1.73
	Yes	335	290	1.16	948	525	1.82	1549	770	1.99	2602	1479	1.72
	SEM	5.6	6.2	0.010	19.3	11.7	0.034	33.9	20.0	0.037	39.8	24.8	0.017
Control	No	313	258	1.19	1016	536^c	1.92	1515	775	1.97	2584	1423	1.78
Anticoccidial	No	343	282	1.18	1072	559^bc	1.80	1651	813	2.04	2673	1500	1.70
Oregano	No	327	271	1.18	878	504^cd	1.75	1397	763	1.89	2445	1432	1.71
Clove	No	342	319	1.15	1032	635^a	1.74	1587	784	2.02	2689	1563	1.72
Control	Yes	331	282	1.17	982	521^cd	1.91	1544	729	2.02	2642	1360	1.78
Anticoccidial	Yes	343	305	1.13	1006	606^ab	1.66	1691	801	2.04	2750	1632	1.69
Oregano	Yes	342	279	1.17	898	508^cd	1.77	1499	786	1.94	2481	1474	1.69
Clove	Yes	343	294	1.17	906	467^d	1.94	1463	764	1.95	2533	1452	1.75
SEM		11.2	12.4	0.021	38.6	23.48	0.069	67.8	39.9	0.075	79.6	49.3	0.034
P value
Diet		0.131	0.030	0.699	0.004	0.017	0.055	0.019	0.598	0.415	0.034	0.013	0.060
Eimeria		0.646	0.409	0.315	0.066	0.054	0.706	0.810	0.626	0.894	0.946	0.998	0.847
Eimeria × Diet		0.771	0.224	0.347	0.306	<0.001	0.110	0.398	0.874	0.827	0.428	0.063	0.881

No: unchallenged broilers received aliquot of dilution at d 10. Yes: challenged broilers received sporulated 10⁴ oocysts of E. tenella, E. acervulina, and E. maxima at d 10. Control: a corn and soybean meal basal diet, anticoccidial: control diet+ 60 g nicarbazin and 60 g narasin per ton of feed, oregano: control diet + 500 ppm oregano oil, and clove: control diet + 500 ppm clove oil.

BW gain: body weight gain, and FCR: feed conversion ratio. Growth performance data were collected and calculated from 6 replication floor-pens of broilers.

^a–d

Means in a column with different superscript letters are different at а = 0.05 level.