Table 14.

Intestinal lesion scores because of Eimeria acervulina on day 36 Ross 708 male broilers fed riboflavin and Bacillus subtilis diet and challenged with coccidiosis.

Riboflavin	Bacillus	Cocci.	Duodenum				Jejunum
			0	1	2	3	0	1	2	3
0.75			78.1	12.5	9.4	0.00	59.4	21.9	18.8	0.0
6.6			75.0	18.8	3.1	3.13	62.5	12.5	15.6	9.4
20			65.6	34.4	0.0	0.00	53.1	37.5	6.3	3.1
SEM1			7.09	6.80	3.44	1.804	7.24	6.80	5.95	3.54
	No		72.9	20.8	6.3	0.00	62.5	22.9	12.5	2.1
	Yes		72.9	22.9	2.1	2.08	54.2	25.0	14.6	6.3
	SEM1		5.79	5.55	2.81	1.473	5.91	5.55	4.86	2.89
		Noncha	52.1b	37.5a	8.3a	2.08	29.2b	39.6a	25.0a	6.3
		Cha	93.8a	6.25b	0.0b	0.00	87.5a	8.3b	2.1b	2.1
		SEM1	5.77	5.55	2.81	1.473	5.91	5.55	4.86	2.89
Riboflavin × Bacillus
0.75	No		68.8	18.8	12.5	0.00	56.3	25.0	18.8	0.0b
0.75	Yes		87.5	6.25	6.3	0.00	62.5	18.8	18.8	0.0 b
6.6	No		81.3	12.5	6.3	0.00	75.0	12.5	12.5	0.0 b
6.6	Yes		68.8	25.0	0.0	6.25	50.0	12.5	18.8	18.8a
20	No		68.8	31.3	0.0	0.00	56.3	31.3	6.3	6.2a,b
20	Yes		62.5	37.5	0.0	0.00	50.0	43.8	6.3	0.0b
SEM1			10.02	9.61	4.87	2.552	10.24	9.61	8.41	5.00
P-value
Riboflavin			0.435	0.070	0.153	0.373	0.649	0.037	0.308	0.169
Bacillus			1.000	0.791	0.298	0.320	0.322	0.791	0.763	0.311
Cocci			<0.0001	0.0002	0.039	0.320	<0.0001	0.0002	0.001	0.311
Riboflavin × Bacillus			0.263	0.405	0.760	0.373	0.313	0.613	0.912	0.039
Riboflavin × Cocci.2			0.937	0.533	0.153	0.373	0.218	0.022	0.528	0.772
Bacillus × Cocci.2			0.612	0.428	0.298	0.320	0.322	0.791	0.366	1.000
Riboflavin × Bacillus × Cocci.2			0.047	0.070	0.760	0.373	0.940	0.613	0.760	0.462

^a-cMeans in a column not sharing a common superscript were different (P < 0.05).

Abbreviations: Cha, Challenged with cocci.; Noncha, Nonchallenged.

¹SEM = Standard error of mean (0 = Normal, 1 = slight, 2 = moderate, 3 = severe lesion score).

²Means of nonsignificant interactions are not listed.