I have one pullet that is lathargic and has some blood in her poop. I went to Tsc to find Corid and they had nothing. I don't know what I am doing. What I have on hand is : Terra vet 200- oxytetracycline Terr vet 10- tetracycline Neovet- Neomycin sulfate Will any of these help? Is Corid an antiobotic? A local feedstock owner gave me the neovet and said it would. Should I just order Corid?