The bird sex determination identification by DNA analysis is currently the most advantageous and preferred method by breeders, for birds that do not show sexual dimorphism (no visible morphological differences between males and females) | The analysis are performed using samples of feathers, blood or eggshell, and it has the following advantages:
- There is no need for surgery or anaesthesia.
- It applies to birds of any age, during any time of
year.
- The birds are not subjected to the stress of
transportation.
- It is a reliable and applicable to most species.