In the Brown layer breeds or lines one-day-old chickens can be sexed based on their colourcolor. For colour color sexing, we make use of the principle of sex-link crosses. Sex-link crosses (hybrid chicken breeds) involve the crossing of two different breeds of chickens to get offspring that can be sexed at hatch by differences in down colourcolor. For example, mating Rhode Island Red males with Rhode Island White females. Their offspring will consist of yellow/white coloured colored one-day-old male chicks, and brown coloured colored one-day-old female chicks (as always, exceptions are there). Based on the colour color of the down, the day-old chicks can easily be sorted by sex.
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