howdy...i've never hatched any eggs, maybe i could give you some and see if they work...just started raising chickens this past May - got some from Silver Mill Feed, then expanded from there with Silkies (well i only have a splash silkie rooster left - the others had Mareks I suspect from people in Burnsville I had 4 babies from them all 4 died the same way, paralysis then death in a few days or so), i had 3 Ayam Ceymani (1 baby died, then others grew to be roosters i gave one away and then the other died also ugh). Got the D'uccles from a lady on Walnut creek rd. d'uccles are great to have - so sweet and precious. the larger chickens i have do bully them but not too much..they stay in same coop fine - i hear some tussling around when the auto door closes lol . i live on riddle farm rd