Hi ,my chooks possibly have signs of CRD either that or gape worm maybe, sneezing, coughing, one is rattly in the chest (wheezy kind of) so lv disinfected everything and cleaned out all the bedding etc and put them on a bird antibiotic, (avicycline c) question is, is it okay for chicks to have?? One of the hens have chicks around 1 week old and l also have 2 Mth olds. I read that CRD etc can be passed from mother to the eggs even