So i am starting a lease on an older horse, 16/17, he needs a lot of maintenance because his owner slacks. First thing is worming him, he hasnt been wormed in maybe a year or two, what worming schedule do you do with your horses. He gets full choice of a round bale and feed but no supplements and with his age and being in work im thinking he could use some to help his joints and keep weight on. What do you guys use? Hes a good horse and loves to work, hes a powerhouse over the jumps but needs his general maintenance kept up with.