METHOD OF INJECTING A TREATMENT SUBSTANCE INTO EGGS AND THE CORRESPONDING INJECTION HEAD

摘要

The present invention concerns an injection method for injecting a substance into eggs, and an injection head for implementing said method. The method comprises a step of piercing the shell and at least the shell membrane of an egg by moving a needle, and then a step of injecting the treatment substance via said needle, said piercing step comprising a first movement of the needle (22) to pierce the shell (91) with a first penetration force and then a second movement of the needle to pierce at least the shell membrane (92) with a second penetration force lower than the first penetration force.