The American Brown Swiss is a breed of cattle that originated in Switzerland. They are known for their high milk production, and are considered to be one of the most efficient milk producers among dairy breeds. They are large animals, with a distinctive light brown color and white face. They have a docile temperament and are known for their hardiness and ability to adapt to different climates. They are also known for their long lactation period and good milk fat and protein content. They are also raised for meat and meat by-products.