Eeeek! I found a worm!!!

[SNORKEY]

Whilst mucking out this afternoon I found a round worm in my horses poo. It was about 5cm long.
I brought my horse last spring as a two year old and I'm his 4th owner, poor little man probably only got wormed once or twice before I got him. I've always wormed and poo picked. If I've found one in his poo has it already got to a bad stage where he might have damage do you think?

 

[windand rain]

If you have wormed him regularly the chances are it isnt a roundworm but a pinworm. They are notoriously difficult to get rid of with modern wormers and if it is the case he will need a 5 day course of panacur . I would think his gut will be fine even if it is a roundworm just worm appropriately now and do a poo count over the summer
Pinworms, tapewroms and encysted red worm dont show on the worm counts so Personally I would worm for tapes twice a year and encysted redworm in the winter either with equest or panacur guard and worm count the rest of the year

 

[SNORKEY]

thanks, now ive googled pin worm it looks more like one of those, urggg!
ive got a pic of it but last time i tried uploading from photobox it didn't work.