What are some symptoms of CRD in chicks? I have 2 one week old chicks that are sick. One is smaller than the other, it will make gurgling sounds, and both of its eyes stick shut. I have to wet them with warm water so they unstick. The other one, only 1 of its eyes stick shut. I have 2 other 1 week old chicks, and 4 other five day old chicks. Should i cull the really sick chick? If so, how do I do it. I will have to get somebody to do it for me, as I just cant. But I dont want the other chicks to get sick. The one with the 2 stuck eyelids probably wont make it through the weekend. Also, how do they catch CRD? Everybody else is fine. I am treating them with water soluble Aueromycin. If it is CRD, can they recover, or will my flock catch it? Can this be passed through eggs? I have the 2 sick chicks in their own brooder.