I'm a huge fan of exhausting every possible and sensible treatments.. Do you give your birds any vitamins? How are the other birds acting? From what I understand, Marek's is contagious, and so the other ones would be showing signs any time now if it is Marek's. I would first try giving her vitamins before culling her. She could have a vitamin deficiency. I have a baby chick that is a week old and we discovered that she most likely has a riboflavin (vitamin B2) deficiency. I refuse to cull her if it's something that I can fix, especially if they still show a desire to eat and drink still. Is your girl losing any weight?
I would definitely start her on a poultry vitamin pack ASAP.
I would definitely start her on a poultry vitamin pack ASAP.
