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 egg laying (days)	132	127	141	134	134	135	136	133	136	145	135	140	123
Age of 50% egg production (days)2	154	147	148	147	154	148	140	148	151	140	151	147	128

C, D: Korean Rhode Island; F, K: Korean Leghorn; Y: Korean domestic chicken.
Value observed for 2 consecutive days.