Table 6.
Estimation of growth curve parameters using three functions in twelve Korean indigenous chicken pure lines by weeks

Strain1)	Function2)	Male			Female
		α3) ± s.e.	β ± s.e.	γ ± s.e.	α ± s.e.	β ± s.e.	γ ± s.e.
S	GOMP	3,940±62.4	4.25±0.071	0.23±0.005	3,173±40.3	3.61±0.027	0.20±0.003
	VONB	4,269±78.6	0.88±0.012	0.17±0.005	3,471±49.2	0.77±0.005	0.15±0.003
	LOGI	3,550±48.2	20.5±0.551	0.40±0.007	2,831±33.8	14.97±0.213	0.36±0.004
H	GOMP	3,926±78.4	4.17±0.039	0.21±0.004	3,115±50.7	3.59±0.025	0.19±0.002
	VONB	4,375±126.5	0.85±0.006	0.15±0.004	3,476±67.8	0.77±0.004	0.14±0.002
	LOGI	3,446±48.3	20.58±0.439	0.38±0.005	2,725±37.2	15.2±0.237	0.34±0.003
R	GOMP	2,518±67.5	4.09±0.039	0.19±0.004	1,900±53.5	3.62±0.034	0.18±0.004
	VONB	2,916±102.7	0.83±0.006	0.13±0.004	2,210±80.2	0.76±0.005	0.12±0.004
	LOGI	2,133±44.5	20.93±0.4	0.36±0.004	1,601±35.4	16±0.318	0.33±0.005
Y	GOMP	2,376±52.3	3.91±0.036	0.17±0.004	1,842±108.2	3.52±0.026	0.17±0.004
	VONB	2,891±93.5	0.8±0.005	0.11±0.004	2,044±71.3	0.75±0.004	0.12±0.004
	LOGI	1,929±31.6	19.38±0.362	0.33±0.005	1,483±38.7	15.07±0.262	0.32±0.005
C	GOMP	2,920±46.3	4.07±0.031	0.16±0.003	1,895±39.0	3.84±0.041	0.18±0.004
	VONB	3,648±88.8	0.82±0.005	0.10±0.003	2,218±63.3	0.8±0.007	0.12±0.004
	LOGI	2,314±24.4	21.28±0.344	0.32±0.004	1,588±24.3	18±0.375	0.34±0.005
D	GOMP	2,705±45.6	4.29±0.03	0.17±0.003	2,176±55.8	3.94±0.039	0.17±0.005
	VONB	3,252±91.9	0.85±0.005	0.12±0.003	2,672±98.8	0.8±0.007	0.11±0.005
	LOGI	2,216±23.1	23.63±0.329	0.35±0.003	1,756±31.0	19.48±0.332	0.33±0.005
F	GOMP	2,065±35.7	3.98±0.052	0.19±0.003	1,692±33.0	3.34±0.018	0.16±0.003
	VONB	2,364±49.4	0.81±0.008	0.13±0.003	1,992±51.0	0.72±0.002	0.11±0.003
	LOGI	1,764±25.8	19.71±0.578	0.35±0.005	1,410±21.3	13.46±0.173	0.31±0.004
K	GOMP	2,041±42	3.97±0.041	0.18±0.004	1,679±31.1	3.51±0.031	0.17±0.004
VONB	2,359±67	0.81±0.007	0.13±0.003	1,973±48.1	0.75±0.005	0.11±0.003
LOGI	1,731±26.7	19.72±0.492	0.35±0.004	1,403±20.9	15.05±0.294	0.32±0.004
O	GOMP	2,275±50.6	3.98±0.042	0.17±0.004	1,617±47.6	3.52±0.034	0.17±0.003
	VONB	2,759±88.4	0.81±0.006	0.11±0.004	1,923±78.2	0.75±0.005	0.11±0.003
	LOGI	1,852±29.8	20.20±0.427	0.33±0.005	1,339±28.7	15.29±0.31	0.32±0.004
W	GOMP	2,219±51.3	4.00±0.038	0.17±0.004	1,683±49.7	3.55±0.037	0.16±0.005
	VONB	2,704±90.3	0.81±0.006	0.11±0.004	2,016±72.8	0.75±0.006	0.11±0.005
	LOGI	1,802±32.4	20.44±0.376	0.33±0.005	1,381±33.8	15.44±0.334	0.32±0.006
G	GOMP	1,975±49.2	3.94±0.048	0.18±0.003	1,414±40.6	3.35±0.03	0.17±0.005
	VONB	2,300±67.6	0.81±0.006	0.12±0.003	1,630±57.8	0.73±0.005	0.12±0.004
	LOGI	1,661±36.7	19.61±0.571	0.34±0.004	1,202±27.9	13.39±0.241	0.32±0.006
L	GOMP	2,460±67.5	4.03±0.046	0.17±0.003	2,132±60.7	3.63±0.028	0.16±0.003
	VONB	2,951±99.7	0.81±0.006	0.11±0.003	2,612±102.6	0.76±0.004	0.10±0.003
	LOGI	2,017±46.4	21.0±0.538	0.34±0.004	1,720±36.0	16.3±0.27	0.31±0.004

S, Brown Korean Cornish; H, Black Korean Cornish; R, Red-Brown Korean Native Chicken; Y, Yellow-Brown Korean Native Chicken; C, D, Korean Rhode Island Red.
GOMP, gompertz function; VONB, von bertalanffy; LOGI, logistic function.
α, β and γ are the growth parameters for mature weight, growth ratio and maturing rate, respectively.