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

Table 4.

Effects of dietary essential oil supplementation and Eimeria challenge on the carcass performance of broilers at 42 d of age (%, n = 6).

Diet¹	Eimeria¹	Carcass/BW	Breast/carcass	Tender/carcass	Tight/carcass	Drumstick/carcass	Wing/carcass
Control		68.31	23.00^c	4.83^b	13.95	14.56	11.11
Anticoccidial		68.19	25.36^a	5.62^a	14.13	13.97	11.03
Oregano		69.96	24.89^ab	5.23^ab	13.97	14.52	11.27
Clove		68.30	23.65^bc	5.30^a	14.66	14.00	11.14
SEM		0.935	0.594	0.164	0.295	0.228	0.215
	No	69.31	24.48	5.26	14.09	14.24	11.41^a
	Yes	68.07	23.98	5.23	14.26	14.28	10.87^b
	SEM	0.664	0.420	0.116	0.209	0.162	0.152
Control	No	68.75	22.94	4.77	13.76	14.22	11.31
Anticoccidial	No	67.57	24.34	5.36	14.31	14.17	11.48
Oregano	No	71.47	25.93	5.34	14.33	14.45	11.54
Clove	No	69.45	24.70	5.59	13.97	14.13	11.29
Control	Yes	67.87	23.07	4.90	14.14	14.89	10.90
Anticoccidial	Yes	68.81	26.39	5.87	13.94	13.78	10.59
Oregano	Yes	68.46	23.85	5.13	13.61	14.59	10.99
Clove	Yes	67.15	22.60	5.02	15.36	13.87	10.99
SEM		1.319	0.839	0.232	0.418	0.322	0.303
P value
Diet		0.524	0.028	0.020	0.319	0.135	0.894
Eimeria		0.199	0.406	0.843	0.570	0.864	0.018
Eimeria × Diet		0.388	0.052	0.146	0.082	0.380	0.785

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.

^a–c

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