Table 4.

Livability (%) of the birds at 21 and 42 d of age and intestinal lesion score of the birds 7 and 14 d after a coccidiosis challenge (21 and 28 d of age) with and without Essential supplementation (Exp. 1)

Suplementation	Challenge		Livability (%)
			1 to 21 d		21 to 42 d
Essential (kg/ton)
0	+		87.33a		96.25
1.5	−		97.00b		95.83
1.5	+		97.33b		93.33
2	−		98.00b		97.08
2	+		97.33b		96.25
SEM			2.24		3.40
p value			0.0001		0.35
	Intestinal lesion score
	21 days			28 days
	Anterior	Median	Cecum	Anterior	Median	Cecum
Essential (kg/ton)
0	2.60a	0.90	2.30a	0.13	0.40	0.53
1.5	1.63b	0.97	1.20b	0.06	0.27	0.07
2	1.87b	0.70	1.30b	0.10	0.33	0.13
SEM	0.16	0.16	0.17	0.06	0.12	0.09
p value	0.003	0.67	0.0008	0.93	0.94	0.09

SEM, standard error of the mean.

Values for livability are means of 10 replicate pens per treatment.

Values for intestinal lesion score are means of 10 replicates (5 birds per replicate pen).

^abMeans with a different superscript letter within a column are significantly different (p<0.05).