Table showing the American standard nutrition ration used in dairies for dairy cows with a live-weight of 1000 lbs. based upon Professor F.W. Woll, of the Wisconsin Experiment Station's 1904 research.

Two photographs of Holstein dairy cows that produced different amounts of butter in Wisconsin, USA in the early 20th century. The first photograph, "Casey Jones" Produced Three Tubs of Butter a Year' shows a pure-bred Holstein that looked good, but produced a small amount of butter. The second photograph, "Handsome Is As Handsome Does" shows aonther pure-bred Holstein cow, "Vickery Vale Beechwood" that produced 20 pounds of butter a year. Both were at Wisconsin Station.

Photograph of the Holstein-Friesian bull, "Colantha Johanna" standing in a wooded field with a man in the early 20th century. The bull was bred by W J Gillet and sold by him for $800 and its dam was, "Colantha 4th Johanna" and its sire was, "Sarcastic Lad".

Table of information on the yearly milk and butterfat records of the Holstein/Friesian cattle, Johanna 4th and Johanna 5th and their female decendants of milking age.

Photograph of short course students at the University of Wisconsin, Madison judging dairy cattle that are part of the University's own herd used for instruction and profit in the early/mid 20th century. The students sit in traverse while several other students stand with three cows in the centre of a barn.

Photograph of a Poland China yearling in a pig pen with it's various points marked out, i.e. snout, ear, etc. The pig is owned by the University of Wisconsin and was bred by Hon. W.A. Jones of Mineral Point, Wisconsin, (United States) in the early/mid 20th century.

Photograph of a brochure advertising the Springvale Stock Farm owned by W J Gillett in Rosendale, Wisconsin, USA that breeds Holstein-Friesian cattle, known as 'The Johannas' in the early/mid 20th century.

Photograph of a brochure cover for the Springvale Stock Farm of Holstein-Friesian cattle owned by W J Gillett in Rosendale, Wisconsin, USA from the early/mid 20th century. It notes that this farm is 'Home of the Johannas" and has two photographs of cows along with informational text about the farm's breeding programme.

Table of information on Colantha 4th's Johanna, the world champion cow that was officially tested by the Wisconsin Experimental Station in 1907 on the average daily yield of amount and percentage of milk and fat produced.

Table of information on Colantha 4th's Johanna, the world champion cow that was officially tested by the Wisconsin Experimental Station in 1907 on the average daily yield of amount and percentage of milk and fat produced after calving.