I have two with sour crop, one is on the mend, the other I am going to have to do surgery on as she is not getting better after two months of treatment.
First, try giving her some mineral oil, about a Tablespoon or so each day to lube up her tract to let it work through. Only give her water with apple cider vinegar (about a Tablespoon per cup of water) for 3 days. Keep massage her crop, however, if she is puking, you need to turn her upside down and you can make her puke out the excess nastiness. There will be gassiness building up and lots of clear mucous, and this will help alleviate some of that. Do not feed her anything for 3 days, maybe even longer if she isn't too skinny. If it seems to be getting better, then slowly give her plain active yogurt to replenish the flora she needs in her digestive tract. Then you can add some egg yolk, and then some (start slow) starter crumbles. Stay away from grains and grasses until she is recovered. It can take a while, but they can usually recover if they are not too bad off. Mine have gotten it from grass they did not pass, which is actually impacted, but it was not severe. I would puke them out a couple of times a day to keep the mucous down. This is fairly easy and it makes them feel better. They will struggle at first, but then they calm down.
Worst case scenerio would be you would need to cut her open and clean the crop out. There are websites and accounts of doing that on here. If nothing else is working, it may be worth a shot since she will just waste away and die if you can clear this up.
Feel the crop and see if there is a mass in there or if it is just mushy to start.
Good luck.
Theri
