Table 3. Comparison of body weight between Korean native chicken (KNC) and Hy-Line Brown hatch to week 16

Treatment	CFCK	CFYC	CFYD	CKCF	CKYC	CKYD	YCCF	YCCK	YCYD	YDCF	YDCK	YDYC	Hy-Line Brown	SEM	P-value
Body weight (g)
Week 1	36.56^c	34.19^a	34.13^a	36.41^c	36.56^c	35.54^bc	34.47^ab	35.46^abc	35.98^c	36.41^c	35.84^c	36.11^c	42.12^d	0.076	<0.001
Week 2	124.14^b	122.26^a	151.86^f	165.90^h	124.14^b	151.48^f	155.17^g	134.59^d	138.15^e	165.9^h	125.99^c	172.28ⁱ	156.3^g	0.077	<0.001
Week 4	292.11^a	319.63^ab	307.85^a	367.02^c	301.5^a	291.55^a	310.16^a	285.63^a	310.56^a	301.21^a	310.33^a	348.54^bc	321.82^ab	2.757	<0.001
Week 6	578.85	617.15	615.46	662.23	594.24	637.08	609.59	566.29	630.40	571.41	595.37	677.36	561.63	22.546	0.670
Week 8	844.3^abc	884.24^bc	870.46^bc	969.35^c	851.64^abc	808.38^ab	861.43^abc	828.6^ab	892.38^bc	792.34^ab	788.3^ab	889.58^bc	743.73^a	8.112	<0.001
Week 10	912.13^ab	985.84^abc	916.36^ab	1,155.16^c	918.52^abc	847.57^a	923.06^abc	807.12^a	1,112.06^bc	827.27^a	813.34^a	1,127.58^bc	1,016.53^abc	9.582	<0.001
Week 12	1,070.72^abc	1,172.81^c	1,093.88^bc	1,379.33^d	1,063.74^abc	976.91^ab	1,079.78^abc	925.91^a	1,188.15^c	933.3^a	952.38^ab	1,352.78^d	1,151.33^c	12.168	<0.001
Week 14	1,049.83^ab	1,098.58^abcd	1,073.09^abc	1,280.41^d	1,041.36^ab	1,007.19^ab	1,006.13^ab	959.09^ab	1,143.6^bcd	974.06^ab	934.07^a	1,256.44^cd	1,246.03^cd	10.530	<0.001
Week 16	1,085.39^ab	1,189.84^abc	1,170.67^abc	1,411.77^d	1,172.94^abc	1,117.25^ab	1,082.38^ab	1,067.33^ab	1,212.76^bc	1,010.24^a	1,036.47^ab	1,314.3^cd	1,314.82^cd	11.177	<0.001

Mean value in the same row with different superscripts are statistically different (P<0.05).
SEM, standard error of the mean.