Facts about hatchability

• Hatchability refers to ratio of no. of chicks hatch to give no. of fertile eggs.
• Hatchability is reduced when temperature is >100⁰
• Can be improved by selection and breeding.
• Decreases with increasing age of chicks.
• Close breeding decreases hatchability while cross breeding increases hatchability.

Hatching egg collection and care

• In deep litter system, one hole for 4-5 hens at 18-20 weeks of age.
• Introduce male at 22 weeks of age @ 8 cocks/100 hens.
• Collect eggs from 25 weeks of age (48-50 g).
• Don’t store hatching egg for more than a week.