Egg traying

Eggs are delivered in cardboard or plastic trays or in incubator egg inserts, which can be directly placed in the incubator. Eggs from trays have to be placed on incubator racks before they are set. 

Cardboard trays are used in small farms or when the chickens just started laying because the weight of the eggs is too low. Small eggs are not used for hatching and processed into egg powder, which is used in the petfood industry.