I have a bit of everything !
But should add I'm breeding pigs too, so probably have more than folks who are raising for slaughter would have.
Digital thermometer (and lubricant for insertion)
Plasters
Dressings and bandages and the stretchy horse bandages for over the top.
Sudocreme,
Purple spray,
shears for foot trimming,
de-horning wire for tusk trimming,
disposable needles and syringes in different sizes
pig colostrum paste / litter care (for pepping up weak piglets)
saline/sterile water & cotton wool pads.
we usually have some iron and a spare wormer on stand-by too.
Scalpel and spare blades
Strong sewing thread and a brand new needle (just in case - I've never needed it yet
)
I'm sure I've forgotten stuff
I'll check next time I'm up in the shed