I noticed one of my builders suddenly bringing Fine Meal to pig 11, which I found odd since there is lots of hay, kibble etc available everywhere. The pigs live in a pigsti with hay all over the place and the pigs are allowed all over my fields so they can haul. So I inspected the pig that my pawn was headed for and it turned out it was missing all of it's hooves, ears and nose. So it just lay there in it's animab bed in a corner, incapacitated. According to the log it fainted due to hypotermia 10 days ago. :-[
(https://i.imgur.com/JBhzuFY.png)