Brown Swiss are more "beefier" than other dairy cows like Holstein, Jersey, Guernsey and Ayrshire . Breed them to a homozygous black bull, and you will get a black,. polled calf. Had a guy with a dairy around here , that quit doing it about 15 years ago, and now markets yard eggs, free-=range chickens, grass-fed beef, goat milk and meat, and mutton. He also has this thing where you buy a diary cow, and he charges you board and charges you to milk it. Will deliver it for an additional; charge as well, if you want. That makes it is YOUR raw milk. Anyway, he uses Jersey and Brown Swiss cows for this. He has bred them to Brahma bulls, and the Brown Swiss/ Brahmas made pretty good cows. People who buy them breed them to an Angus, and the calves look like Brangus with a tad less ear.