Or. of course, there are draft horses who can do ploughing as well as other work like carrying and hauling, the rest of the year.
Around here, people plough with dzo, a cross between yak and cow. I think they're castrated (the males can't impregnate female cattle even if not). Because their workload over the year is so minimal now that people don't even use them for threshing, they seem to just be turned loose to fend for themselves in the desert for most of the year. And most of them seem to find our school, are unimpressed by barbed wire on their hairy chests, and come barging in to eat our garden leftovers and tree bark