A total of 1754 hatching eggs were collected from six different crosses (HxWLH) xRIR, RIRxBP1-3, RIRx(WRxWLH), RIRx(WRxBPR)RIR, (HxWLH)BPR and (HxWR)RIRxWR and stored for three preincubation holding periods. Percent of infertile eggs differed significantly (p<0.01) among the crossbreds and (p<0.01) in holding periods. The highest value was for RIRx(WRxBPR)RIR-23.45, intermediate in RIRx(WRxWLH)-14.88, (HxWR)RIRxWR-9.38, (HxWLH) xRIR-5.69, (HxWLH)BPR-5.17 and lowest in RIRxBPR-3.69. The dead embryos differed significantly (p<0.05) among crossbreds and (p<0.01) in holding periods. The highest percent of dead embryoes was found in RIRx(WRxBPR)RIR-7.97, intermediate in (HxWLH) xRIR-5.34, RIR(WRxWLH)-4.59 and (HxWLH)BPR-3.25, lower in RIRxBPR- 3.02 and lowest in (HxWR)RIRxWR-2.68. The fertility differed significantly (p<0.01) among crossbreds and in holding periods. The highest fertility was in RIRxBPR-93.29 and lowest in RIRx(WRxBPR)RIR- 68.58. The hatchability of egg set differed significantly (p<0.01) among the crossbreds and in holding periods. The highest hatchability was found in RIRxBPR-82.50 and lowest in RIRx(WRxBPR)RIR- 52.77. The hatchability of fertile eggs differed significantly (p<0.01) among the crossbreds and in holding periods. The highest hatchability was found in RIRxBPR-88.37 and lowest in RIRx(WRxBPR)RIR-76.77. There were some positive correlations among different hatchability tra ts depending on genotypes. The correlations were more profound among RIRxBPR crossbreds.