. 2017 Jul 28;96(10):3676–3686. doi: 10.3382/ps/pex192

Table 4.

Growth performance and apparent retention of components in broiler chickens fed corn-soybean meal based diet without or with epidermal growth factor and challenged with Eimeria

Treatments		Final BW, g	BWG, g	Feed intake, g	FCR	AR, %
Eimeria ¹	EGF², μg					DM	Crude fat	Gross energy
No	0	373	284	589	2.113	74.7	82.4	75.9
No	80	372	282	594	2.171	73.1	82.0	74.6
No	160	390	301	570	1.922	74.2	81.0	75.5
Yes	0	264	174	460	2.699	58.0	−18.1	48.6
Yes	80	277	186	469	2.813	55.5	−10.8	50.9
Yes	160	265	176	462	2.640	61.5	−9.0	53.1
	SEM	15.3	15.3	23.3	0.270	2.05	4.45	1.64
Main effect, Eimeria
	No	379^a	289^a	585^a	2.069^b	74.0^a	81.8^a	75.3^a
	Yes	268^b	179^b	464^b	2.717^a	58.3^b	−12.6^b	50.9^b
	SEM	8.70	8.72	13.29	0.150	1.19	2.57	0.95
Main effect, EGF, μg
0		319	229	525	2.406	66.3	32.1	62.3
80		324	234	532	2.492	64.3	35.6	62.7
160		328	238	516	2.281	67.8	36.0	64.3
SEM		10.8	10.8	16.44	0.190	1.45	4.02	1.16
Probabilities
Eimeria		<0.01	<0.01	<0.01	0.006	<0.01	<0.01	<0.01
EGF		0.836	0.844	0.810	0.744	0.247	0.633	0.421
Eimeria*EGF		0.619	0.630	0.892	0.971	0.452	0.473	0.311

¹Chicks were orally gavaged with a 1 mL mixture of 25,000 E. acervulina and 5,000 E. maxima on d 5.

²Epidermal growth factor, μg/kg BW based on projected growth curve of Ross 708.

Means assigned different letters (a, b) within a factor of analysis (Eimeria, EGF and their interactions) are significantly different, P < 0.05.