Table 2.

Fertility and hatchability of Rhode Island Red and White Leghorn roosters of 55 wk age.

Item	RIR (N = 30)	WL (N = 30)	P-value
Fertility (%)	89.46 ± 1.55	81.73 ± 3.06	0.028
Hatchability from the fertilized eggs (%)	71.73 ± 2.67	72.44 ± 2.38	0.845
Hatchability from the total setting eggs (%)	66.79 ± 3.14	60.85 ± 3.54	0.215

Data are means ± SEM.

Fertility (%) = (Fertilized eggs number/Total setting eggs number) × 100, Hatchability from the fertilized eggs (%) = (Hatched chick number/Fertilized eggs number) × 100, Hatchability from the total setting eggs (%) = (Hatched chick number/Total setting eggs number) × 100.

Abbreviations: RIR, Rhode Island Red; WL, White Leghorn.