I have a 19 month old hen who has been sick for over a year. She had severe diarrhea and has twice spent three days with an avian vet (last July and in November). All labs were normal both times. She now weighs 2.1 pounds.The good news is that three weeks ago the diarrhea mysteriously stopped to everyone's amazement, She is, and has been, weak. She is one of the first to dig into treats - I have been giving them all kinds of greens, tomatoes, raisins, oatmeal with peanut butter, scrambled and hard boiled eggs with crushed shell, BOSS - small amounts at different times. The little stinkers turn their noses up at pumpkin seeds. I've been adding ACV and Durvet probiotics and electrolytes to their water and I have been bringing her in to give her layer feed soaked in water. I am wondering if there is something nutritious that I can give her to help her gain weight and get her strength back. I just read about Nurti-drench. Is this something that would be beneficial? I don't want to overdo it but not sure how much more, or what to give her. Thanks so much,