The Plow Boy

From The Unofficial DisneyWiki

Mickey Mouse returned to civilian life with The Plow Boy, first released on May 9, 1929. As the title implies, he was depicted as a farmer alongside Minnie. He is first seen with his horse while plowing a field. Then Minnie comes along with her cow. She has Mickey milk the cow for her. As he does, the cow starts licking him in an apparent sign of affection. Mickey does not seem pleased and replies by rolling up its muzzle with its own tongue. Mickey eventually manages to present Minnie with a full be short is considered mainly notable for the livestock it featured. Minnie's cow is considered to be Clarabelle Cow making her second appearance, and Mickey's plow horse is considered to be Horace Horsecollar making his debut. Though depicted as non-anthropomorphic animals during this short, later that same year both would become as anthropomorphic as their former owners.