i seem to have a problem that only involves one breed of chicks...everytime i hatch out chabo chicks, i barely get any making it to adult hood and its really frustrating to not know whats going on? i have a large adult flock....5 roosters and 20 hens...all from different bloodlines, some from belgium, some from holland, even got a few from the uk that were sent over as eggs. this year ive incubated +/- 150 chabo eggs....i have just 20 '2011' chabos to show for it. my last hatch being the worse...60 chabo eggs in (along with 10 cochin bantam eggs) that was 3 weeks ago that they hatched. 40 made it through hatching....im already down to just 9..they seem to die off at a rate of 1 or 2 per day. i still have all 6 cochins that hatched. any chabos hatched outside with their mums have been fine, so i dont think its genetic, it must be something im doing wrong. they show no signs of illness (such as sneezing/runny droppings/leaky eyes, no bloody poops etc) they'll be fine running around in the evening, then at lights out i'll notice one or two huddled in the corner chirping, away from the rest, then the following morning those ones will be dead. it seems to affect the chicks that are under 8 weeks, those who reach 8 weks seem to make it (not that many get that far) they are on medicated chick feed, 2 x day fresh water...2 heat sources plus plenty of space to get away from heat if they're too hot. no draughts, this past week for the newest batch of chicks, ive tried antibiotics in the water (denagard) but it hasnt helped (thought maybe it would but as i dont know what im dealing with i dont know what to treat for) in the last lot of chicks i tried cocci treatment as i saw one or two with sloppy poop but think that was perhaps caused by something they ate? brooders and incubators are disinfected between hatched, other chicks hatched have no problem, just the chabos being hatched inside...... can anyone give me any ideas what i might be doing wrong with these littl chicks?