Okay, I thought that I had the cocci under control in my outside brooder. I have 6 1/2 and 7 1/2 week old chicks in it. I lost one chick 10 days ago because I realized there was a problem too late. They had already had a round of amprolium so I started them on sulfadimethoxine. 5 days at the higher dose and then 3 days of amprolium. They have been back on water with vitamins for 2 days and this morning I found a dead cockerel in the pen. Monet and I checked zip tie bands on everyone last night and all looked fine. All live ones look fine this morning. I see a few poos with some red in them but they look like intestinal lining shedding. The bloody ones were all red. Any recommendations on what to do now?
I have a double decker brooder and the bottom one has hardware cloth on part of the floor so the droppings fall through and my older birds do get under there and dig around. I also have another group of birds that are around 10 weeks that I have been letting out of their pen onto my patio. (Big mess, big mistake.) I will be rearranging pens this weekend and the boys are going to the farm. Both brooders and the patio birds have had a round of the S drug since they are all young and in close contact. The big girls used to have access to the ground area that the bottom level brooder has access to. I am assuming that they have built up immunity to the cocci since I haven't had any problems with them. Do you think that I should do some preventative with them?