Table 3. Age at first egg laying and egg production in early-feathering (EF) and late-feathering (LF) Korean native chickens

Feathering	Age at first egg laying (day)	Hen-day egg production (first egg laying~52 wk, %)	Hen-housed egg production (first egg laying~52 wk, egg)
EF	160.6±4.2	74.2±5.2b	142.0±13.0b
LF	161.1±5.1	78.2±3.7a	153.7±8.4a
Total	160.7±4.4	75.2±5.1	145.0±13.0

Values (Means±SD) with different superscript within the same column significantly differ by t-test (P<0.01).