I had a set of triplets born on Thursday, fox took one and they other two seemed fine, drinking, running around etc. Until late this morning when I found one away from mum, just standing still leaning to one side. When I moved her she just fell over on her side and struggled to get up, her stomach was empty so bottle fed her and left her in the sun where mum could see her. Around 20 mins later she started having a seizure, kicking legs, arching her head back and moving her neck in circles, with a bit of foaming at the mouth. This carried on for around 20mins or so, I decided to have the vet put her to sleep.
Any thoughts on what might have caused this, up until this morning she was perfectly normal.
Thanks