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

Table 5.

Gastrointestinal weight and jenunal histomorphology of broiler chickens fed corn-soybean meal based diets without or with epidermal growth factor and challenged with Eimeria

Eimeria ¹	EGF², μg	BW³, g	Relative weight, mg/g BW			Jejunal histomorphology⁴
			Gizzard	Small intestine	Ceca	VH, μm	CD, μm	VH:CD
No	0	394	26.5	48.8	8.11	906	144	6.454
No	80	403	26.2	45.5	7.61	967	155	6.296
No	160	431	25.4	48.0	7.60	940	154	6.457
Yes	0	278	33.5	76.2	10.9	577	286	2.012
Yes	80	277	33.7	78.3	10.3	593	285	2.186
Yes	160	280	33.6	73.8	10.5	530	306	1.790
SEM	17.7	1.10	2.23	0.44	33.1	14.7	0.310
Main effects, Eimeria
	No	409^a	26.0^b	47.4^b	7.78^b	935^a	151^b	6.402^a
	Yes	278^b	33.6^a	76.1^a	10.6^a	567^b	292^a	1.996^b
	SEM	10.2	0.63	1.29	0.25	19.1	8.51	0.18
Main effects, EGF
	0	336	30.02	62.5	9.49	742	215	4.233
	80	340	20.0	61.9	8.93	777	220	4.241
	160	356	29.5	60.9	9.08	735	230	4.124
	SEM	12.5	0.774	1.58	0.311	23.4	10.4	0.220
Probabilities
Eimeria		< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
EGF		0.515	0.889	0.766	0.433	0.390	0.613	0.916
EGF*Eimeria		0.595	0.845	0.278	0.941	0.473	0.756	0.664

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.

³Average bodyweight of two birds.

⁴VH, villi height; CD, crypt depth.

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