Table 7 Effect of dietary organic sulfur on CD4+ and CD8+ in blood of laying hens

Organic sulfur (%)	CD4+ and CD8+ defined subset (%) of CD3+ PBMC
	CD3+ (%)	CD4+ (%)	CD8+ (%)	CD4+/CD8+
0	16.93	43.03c	27.74	1.58c
0.1	16.69	47.04c	26.43	1.95bc
0.2	14.92	54.13b	24.54	2.23b
0.4	17.24	60.34a	22.60	2.70a
SEM	0.97	1.31	0.93	0.09
P-value	0.85	<0.01	0.23	<0.01

^a∼c Value with the different letters in the row are significantly different at 5% level. PBMC: Peripheral blood mononuclear cell, CD3+: T cell, CD4+: T help cell, CD8+: Cytotoxicity cell.