I'm with mitzi on it might be cocci killing the chicks. Mine had rust colored poo when a cocci outbreak occurred in my brooder box.
Are the chicks puffed up or look disheveled?
On the corid vs sulmet, I thought I read corid treats more strains than sulmet. I'll have to Google that again.
Are the chicks puffed up or look disheveled?
On the corid vs sulmet, I thought I read corid treats more strains than sulmet. I'll have to Google that again.