My 11 month old Blue Orp Roo started gurgling yesterday and holding his tail down, standing in corner. No nasal discharge or anything like that. Holding his mouth open to breathe. I read for hrs. yesterday and it sounds like gapeworm to me. I didn't have anything to give him last nite but separated him from other birds. this morn I went early to Jeffers and got Ivomec. I have never wormed my chickens with anything but Cayene pepper and they need it now. I gave him .3cc of Ivomec orally. He weighs only around 8 pd right now . Feels like he has lost weight. If this is the problem how long can I expect it to take to help him. I would appreciate any help as if I need to go back to Jeffers before 7 pm I will. I added electrolytes and Vits to water.