Table 6. Effects of breed, laying age and egg storage period on the IL-6 gene expression level and the telomere length in hatched chicks

Factors IL-6 Telomere
ΔCT 2−ΔΔct ΔCT 2−ΔΔct
Breed (A) Jaeraejong 5.8±4.1b 1 -3.0±6.0 1
K. Rhode 7.2±4.5a 0.40 -1.9±6.0 1.49
K. Leghorn 5.4±3.5b 1.31 -3.6±6.3 0.33
Laying age (B) 27~29wk 6.6±5.7a 1 -3.7±4.5b 1
50 ~ 52wk 5.7±1.0b 1.9 -2.0±7.3a 0.3
Egg storage period (C) 3d 5.9±6.0 1 -2.0±7.8 1
7d 6.7±2.7 0.59 -2.9±5.1 1.89
14d 5.8±3.0 1.13 -3.6±5.0 3.14
P values A 0.0021 0.0849
B 0.0224 0.0047
C 0.1410 0.0993
A × B 0.0065 <0001
A × C 0.0001 0.0043
B × C 0.3903 0.2991
A × B × C 0.0002 0.0021
Values are mean±standard deviation.
The different superscripts within column in each factor significantly differ.