About 3 months. i have been feeding her a organic layer feed and i give them barley once a day, although lately it has been kind on moldy. My pullet can eat and drink as long as it is next to her, she can still move but not get up or stand. I used the diatomaceous earth on both of them yesterday and the leghorn perked up a bit after that, started eating. i came by this morning and she was opening and closing her mouth like she had a tough time breathing. i tried to get her some water but she wouldn't drink. I had a wyandotte rooster last fall that got paralyzed in one wing and leg, i thought for sure it was Marek's but no one else got sick, and this is different, she isn't paralyzed.