Table 4. Intra-cellular nuclear DNA damage of Korean native chickens before and after mixed rearing of male and female chickens Rearing

Rearing	Sex	% DNA in tail	Tail moment	Olive moment
Before mixed rearing	Female	14.32±1.71^b	18.14±1.95^b	20.80±1.45^b
Before mixed rearing	Male	14.41±1.92^b	18.43±1.84^b	20.91±1.45^b
After mixed rearing	Female	35.39±3.34^a	81.15±8.11^a	82.79±7.51^a
After mixed rearing	Male	36.43±2.39^a	82.84±6.32^a	83.10±7.84^a
Male and female mixed rearing (R)
Before		14.37±1.80^b	18.27±1.90^b	20.85±1.44^b
After		35.88±2.96^a	81.95±7.32^a	82.94±7.63^a
P-values		<0.0001	<0.0001	<0.0001
Sex (S)
Female		24.29±10.89	47.95±32.14	50.13±31.56
Male		25.42±11.29	50.63±32.74	52.00±31.79
P-values		0.1333	0.2285	0.8032
P-values of R × S		0.1939	0.3841	0.9048

Values with different superscripts in column significantly differ.