This is the right answer
inbreeding is used for a while then the cross breeding come to light and geens will became stronger in next generations and so on
Iam an inbreeder of hagromo rainbow budgies and i used the inbreeding in some clutches and every thing looked well but i used inbreeding for only a specific time , then now i must use the cross breeding by intering new fresh blood to avoid any problem that could happen in the future clutches
Thanks to all