I found this hope this helps.
[FONT=Verdana, Arial, Helvetica, sans-serif]Sour Crop or Impacted[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Is it more hard or like a water balloon? Sour crop will be like a water balloon; whereas, an impacted crop is hard. "Doughy" kinda sounds normal, but that is a vague enough term that it can encompass the whole range of possible problems. Is her crop still full in the morning when she awakes?[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]If sour crop:[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Massaging the crop in a downward motion. Hold all food from her and give her water with some apple cider vinegar (ACV) added to it (preferably ACV with mother, but regular will do). Make sure it is in plastic or glass as ACV corrodes metal and this can be toxic. A few times a day (as available anyway), give her an irrigation syringe full of 1/2 ACV - 1/2 water. This will take some patience as you can only give a little bit at a time to ensure she doesn't choke on it. I had a hen with sour crop that I would massage her crop while giving her the syringe. It would gurgle something nasty and she would have gnarly burps, but she started pushing up against my hand to keep massaging her crop and would open her beak for more of the ACV mixture, so it must've felt better. Sour crop is a yeast infection in the crop (hence hold food so it doesn't ferment more in there). The ACV kills the yeast. After a couple days you should see a difference and after 4 or so days, she should be near normal. Sour crop kills, so act quickly.[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]If an impacted crop:[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Hold food. Give olive oil soaked bread (the bread is just to get the olive oil into the bird). Oil seems to be the best remedy as it slicks up the passage way to allow for food to pass through. It gets tougher it is long grass/hay stuck.[/FONT]
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Sour crop
[FONT=Verdana, Arial, Helvetica, sans-serif]I suggest withholding all food except lots of water with ACV (4 tbsp to a quart of water) to let the crop try and empty - the acv is antifungal, antibiotic and anti yeast agent and will help kill any organism causing the issues - no sugar, sugar (molasses) feeds the organisms. After 6 - 8 hours feed her some olive soak bread every couple hours and continue with lots of water with acv. Gently massage the crop without pushing upward (you could choke her). The oil makes things slippery and anything stuck can begin to move out. Make sure she is on bedding that cannot be ingested. They will eat anything trying to get relief for themselves. After 24 hours check her crop and gently without pushing up massage the crop to help things. Massive gross poops are good. If the crop is still sour and smelly and gassy you can give her 1/4 tsp mylanta plain flavored to help settle the acids.[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Once the crop has empties don't be too quick to start feeding her again. Start off with the oil soaked bread, chicken pellets that have been wet and are mushy, a little yogurt and very finsly mashed boiled egg.[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]You have to give the crop a chance to heal and begin to function before you let her have a free diet. After 3 - 5 days slow begin to introduce her regular food and a little grit to help it along.[/FONT]