Table 4. Effects of supplemental different minerals on foot-pad dermatitis in broiler chickens under cyclic heat stress

Score1)	NC		PC		ILT		ZLT		OC		SE	p-value
	N	%	N	%	N	%	N	%	N	%
0	26	72.22	9	25.00	10	27.78	10	27.78	8	22.22
1	7	19.44	5	13.89	12	33.33	12	33.33	7	19.44
2	3	8.33	12	33.33	8	22.22	7	19.44	9	25.00
3	0	0.00	10	27.78	6	16.67	7	19.44	12	33.33
Total2)	36	100.00	36	100.00	36	100.00	36	100.00	36	100.00
Average	0.4c		1.6ab		1.3b		1.3b		1.7a		0.6	< 0.001

Lesion score: Lesion score was dermined as follow : 0, no lesion; 1, lesion covering less than 25% of the sole of the foot large area lesion; 2, covering between 25% and 50% of the sole of the foot; 3, more than 50% of the lesion of the plantar.
Total values are rounded to one decimal place.
Means within column with different superscripts differ significantly (p < 0.05).
NC, basal diet; PC, NC and start of heat stress at the 2nd week; ILT, PC + 1% of illite; ZLT, PC + 1% of zeolite; OC, PC + 400 ppb of organic chromium.
SE, standard error.