Unlike crop farming, dairy farms can come to a sudden and abrupt end. I know.
Two kids can set a fire, the barn goes, and the herd has to be sold. (Averaging 27,000 lb per cow--that's a figure unheard of in the 1950's.)
Or advancing age, low prices, a smaller dairy, no successors can make for a more gradual sell-off, as here.
Or a TB test comes out positive, and the bureaucrats order a "depopulation". (Some great photos at this site, prairie Canada.
Or, as happened with my dad, there's a severe stroke, so the cows went the next day, a phrase I
can't type without emotion, even though I never wanted to farm.