Table 2. Effect of stocking density on growth performance of Korean Native chickens¹

Items	Stock density (birds/m²)					SEM
Items	14	15	16	18	22	SEM
Initial BW (g/bird)	37.8	36.8	37.9	37.3	37.7
Final BW (g/bird)	2,123.9^a	2,196.3^a	2,006.7^ab	1,978.7^ab	1,851.0^b	0.182
BW gain (g/bird)
0 to 35 d	815.2^a	826.7^a	718.8^b	753.2^b	662.3^c	14.37
36 to 56 d	731.1^ab	762.3^a	661.1^c	693.5^bc	656.9^c	16.50
57 to 70 d	539.9	570.6	588.9	494.7	494.1	36.49
0 to 70 d	2,086.1^a	2,159.5^a	1,968.8^ab	1,941.3^ab	1,813.3^b	44.41
Feed intake
0 to 35 d	1456.7^a	1,430.6^a	1,257.7^b	1,158.7^c	1,158.1^c	18.45
36 to 56 d	1,792.6	1,798.6	1,610.7	1,629.8	1,573.1	50.07
57 to 70 d	1,557.1	1,625.4	1,674.6	1,451.6	1,340.6	36.84
0 to 70 d	4,806.3^a	4,854.6^a	4,543.0^a	4,240.4^ab	4,071.7^b	65.22
Feed conversion ratio
0 to 35 d	1.79	1.73	1.75	1.54	1.75	0.040
36 to 56 d	2.45	2.36	2.44	2.35	2.39	0.080
57 to 70 d	2.88	2.85	2.84	2.93	2.71	0.176
0 to 70 d	2.30	2.25	2.31	2.18	2.25	0.041

Means with the different superscripts differ significantly (P<0.05).
Data are least square means of 4 replicate per treatment.