Hey guys! Recently I went on holiday for two nights and came home to a hen with sour crop. We have three beautiful girls and I hope they stay three. My Isa Brown was looking good when we left but when I came home she was all lethargic and didn't do much moving. She was in perfect health when we left so she's had it for 4 or so days. I've done a tonne of research on it so far and I've been feeding her heaps of Greek Style yoghurt and adding AppleC Vinegar to her water. Her crop empties fine so there's nothing stuck. I've tried making her throw up but nothing came out except some clear fluid. I'll try again tomorrow. I've been massaging her crop to get rid of gas bubbles which really stink twice a day a then feeding her the yoghurt. I recently purchased some kefir (really hard to explain so you better look it up; sorry) which should arrive either on Thursday or next week. I read a post saying someone cured their chicken with it. I'm thinking of buying some treatment youghurt but I'm not 100% sure where I should go to get it(I live in Cairns/Australia by the way). Should I go to a feed store or vet? I've also heard of yeast treatments sold at chemists but that's my last resort. Any comments would be appreciated, even if I mentioned something you have though of, please comment anyway. Really desperate for a cure because my other hen died of impacted crop. The stupid animal ate crusher dust and got a crop the size of a baseball. Don't know why. We have plenty of grit and calcium. Thanks for any comments!