Table 1. Correlation coefficients of body weight from hatch to 20 weeks of age with egg production performance

	Days at first egg laying (day)	Egg production		Egg weight (g)
		Hen-day (%)	Hen-housed (eggs)	At 32 weeks	At 50 weeks
Hatching weight (g)	0.64**	−0.26**	−0.50**	−0.13	−0.19
Body weight at 4 wk	0.53**	−0.30**	−0.50**	0.10	0.13
Body weight at 8 wk	0.10	−0.05	−0.04	−0.06	0.17
Body weight at 12 wk	−0.44**	0.11	0.28**	0.16	0.37**
Body weight at 16 wk	−0.55**	0.20*	0.39**	−0.05	0.15
Body weight at 20 wk	−0.19*	0.05	0.11	0.18	0.08

An asterisk in superscript indicates a significant level (*P<0.05, **P<0.01).