Not always look at the cock !!
Young hens mostley not have the "Germinal Disk" (the point from where the deviding starts) in there first time they depose eggs (mostly 6 à 10 eggs), so these eggs can't be furtilised by the cocks sperm !
egg of young hen without germinal disk/egg of a mature hen with germinal disk
[Modificato da Danny_57 24/01/2011 11:22]