Table 3.
The relative amount of telomeric DNA and ratio of heterophils to lymphocytes (H/L ratio) of White Leghorns kept in conventional cages and floor-pens

Housing types	Amount of telomeric DNA (%)	H/L ratio
Cages	1.63±0.09^b	0.48±0.03^a
Floor-pens	1.66±0.08^a	0.40±0.08^b
P-values	0.0213	<0.0001