Hi My 4 year old hen "pretty" died yesterday after being very lethargic for only a couple of days. She was drinking lots of water but not interested in eating or moving around anywhere. I brought ber inside to the laundry and made a comfortable bed for her. I first of all treated her with some plain yoghurt, then cooked porrridge which she did not have any of. I then asked my husband to give her some apple cider vinegar through a syringe, I forgot to tell him to dilute it before i went out to run an errand and when i got home an hour or so later she was gone. He gave her about 3-5ml acv undiluted . Could this have killed her? Just thought i would ask the questlon.