Table 4. Comparison of the amount of telomeric DNA of hatched chickens in summer and winter

Hatched	10 wks	20 wks	40 wks	Telomere shortening ratio (10 wks~40 wks)
Summer	2.61±0.12a	2.40±0.13b	1.69±0.16c	1.01±0.06
Winter	2.60±0.13a	2.41±0.16b	1.68±0.20c	1.12±0.05
P-value	0.4514	0.1365	0.4875	0.2184

Values are means±standard deviation.
Values in the same row with different superscripts letters are significantly different (P<0.05).