Pretty impossible to tell what's going on over the internet.
He could have a capped hock (from hitting his hock on something).
He could have arthritis .... although if he showing fluid on the hock from arthritis, then it's going to be pretty significant arthritis (and not just the "start").
But you are saying his whole leg is swollen too? But since the bute, only the hock is still swollen?
Have you been icing or cold hosing the leg? (You said heat is present.)
Kind of depends what's wrong with the hock. Sometimes confinement is best (if they strained something, you don't want them straining it further) but sometimes turnout and movement is good to keep the swelling under control. If you are not sure what you are dealing with, it's hard to come up with a treatment plan.
He could have a capped hock (from hitting his hock on something).
He could have arthritis .... although if he showing fluid on the hock from arthritis, then it's going to be pretty significant arthritis (and not just the "start").
But you are saying his whole leg is swollen too? But since the bute, only the hock is still swollen?
Have you been icing or cold hosing the leg? (You said heat is present.)
Kind of depends what's wrong with the hock. Sometimes confinement is best (if they strained something, you don't want them straining it further) but sometimes turnout and movement is good to keep the swelling under control. If you are not sure what you are dealing with, it's hard to come up with a treatment plan.