Method for determining the gender of a chick

A method for determining the gender of a birds in ovo of a plurality of eggs, comprising a first test, and a second test separate and different from the first test, each of the first and second test comprising the steps of examining a bird egg and determining the gender of the bird within the egg, and wherein the method further comprises the step of determining a test usability value for each individual egg of the plurality of eggs and deciding a test sequence for each individual egg based on the test usability value, the test sequence comprising one or both of the first and second test, and separating said plurality of eggs into at least a first and second subset of eggs based on gender, wherein the first and second test at least differ in working principle, wherein the determining the test usability value for each individual egg of the plurality of eggs comprises assessing an individual egg for providing an egg assessment and wherein the test usability value for the individual egg is at least based on the egg assessment, and wherein the step of assessing an individual egg comprises one or more of;

• Colori metering, weighing, temperature measuring, imaging, candling, egg shell thickness measurement.