was this a sour/ impacted crop or something else

[border lass]

My 10 month old Brahma hen was in excellent health, free ranging and having pellets, she had been wormed two weeks previously. I noticed one afternoon that she was just standing in the garden and generally not right, she did a a watery poop with no solids just white urates Next morning I felt her crop it was very full but was moveable with no single mass. I suspected an impacted crop. I gave her olive oil with a syringe carefully onto her tongue, letting her swallow and gently massaged the crop. Nothing changed over the day, more watery poop. I am a novice and got very worried. Late afternoon took her to the vet. No clinical signs of any other problem other than comb a very dark red. She was open mouth breathing- ?stress/heat. Crop still large but you coukd clearly feel and move food around, more watery poop. Vet gave a painkiller and antibiotics just in case. Took her home and my beautiful girl died overnight.
Was there anything else I should have done?

 

[Eggcessive]

Welcome to BYC. Really without a necropsy, there is no way to know exactly what happened. Crop problems can kill for sure, but she could have have something other causing her crop to not function normally. Many diseases cause slow or stasis of the crop. Sometimes you can do a necropsy yourself and spot certain things such as gizzard blockage, kidney or liver disease, coccidiosis, or worms. Some things are better done by a poultry lab or state vet. Sorry for your loss.