As dairying continued to prosper, a barn type worked out at the Wisconsin Experiment Station became widely popular on dairy farms in the northern and central parts of Ohio. The structure, termed the Wisconsin Dairy barn, is an example of the scientific approach to agriculture which typified the new 20th century. The great advantage of this elongated plan, end-entry, barn was the ease with which it could be further expanded as dairy herds grew.
In addition to its extended length, large loft for hay storage, and gambrel or round roof, it is characterized by a large number of small windows which allow light to penetrate inside. This feature reflects another aspect of the scientific approach to agriculture, a recognition that expanded sunlight not only made milking and other chores easier, but it also increased sanitation by reducing bacterial growth. The work of the Wisconsin Agricultural Experiment Station was matched by other scientific improvements in agriculture at the Ohio State Agricultural Experiment Station facilities.