One of my old hens probably got sour crop - the crop feels like a baloon, not much food in it and a lot of "water". It's not probably emptying since yesterday. It smells "sour" from her beak. Her crop has been massaged a day before yesterday and she has "vomited", but only vomiting didn't help
. I've read that i should withold water for 12 hours and food for 24 hour, and then feed her with hard boiled yolk, with a tablespoon of applesauce and give her water with probiotics. I don't have chicken probiotics, i've got probiotics for humans i guess (could i give it to her in water?). Could i just add a teaspoon of plain yoghurt to the yolk-mix? And could i take the night as 12 hours without water and then in the morning give her water? (Btw i'd like to mark her with a not-tight cable tie/zipper on leg. Is it safe? I go to school and grandpa wouldn't know which chicken to isolate)
