Grading and Cleaning of Hatching Eggs

In most cases grading and cleaning of hatching eggs is a simultaneous operation in the hatchery.

In selecting hatching eggs, the requirements regarding shell quality and egg shape will be higher for layers than for broilers

Eggs unfit for hatching are:

a. Dirty eggs

b. Cracks

c. Thin shelled eggs

d. Eggs with shells, which are rough and not uniform

e. Misshapen eggs

f. Eggs with abnormal spaces - loose or floating air cells