Lohmann Hatchery Guide

39 39 LOHMANN TIERZUCHT › MANAGEMENT GUIDE › › Embryos with eggshell injury or shock during transfer; signs of a dry or sticky membrane on embryo’s body: control transfer action: if automatic, set to slow and if manual, ask for consideration and attention - otherwise these damaged eggs will not hatch. › › If aspergillus is present in the air chamber, the membrane is a strong yellow colour: provide a fast reaction with an increase of biosecurity and specific treatments on arrival from the hatchery, but it is important to avoid the possibility of replication in the hatchery or in the machine. Broken eggs in hatcher: Aspergillus: These are eggs and embryos which were lost just before the transfer process due to wrong flock conditions, wrong farm conditions, wrong handling of eggs, wrong setting and wrong incubation. The following records can be attributed to genetics, farms, and setter and hatcher issues.