lurcher jake

its been a long summer and my dog needs training again but for some reason he wont run now unless he is chasing something like the baby deer the other month. anyone got any idea to how i can get him to run with having anything alive to chase. also he loves to jump anything to get to his kill

not sure if this is the place to put it but im trying to train my dog and think a good way is with a machine to keep me fit. does anyone know of where i can get one or best way to make one. best would be a travel on that i can carry in to fields and does need a big car battery to run it. anything ideas would help.