Table 5. Comparison of age of first egg laying and age of 50% egg production between crossbred Korean native chickens and Hy-Line Brown

Items	Treatments1
	CFCK	CFYC	CFYD	CKCF	CKYC	CKYD	YCCF	YCCK	YCYD	YDCF	YDCK	YDYC	Hy-Line Brown
Age of first egglaying (days)	130	127	139	130	130	134	140	135	141	147	137	146	119
Age of 50% eggproduction (days)2	155	150	156	152	155	154	152	154	158	156	156	158	137

C, D: Korean Rhode Island; F, K: Korean Leghorn; Y: Korean domestic chicken.
Values observed over two consecutive days refer to that of the first day.