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Examines the role of the enzyme lactase in lactose intolerance. Link between low concentrations of lactose in milk and high concentrations of milk fat; Percentage of real adult tolerance to lactose among Northern Europeans and nomadic pastoral tribes in Africa by 1970; Factors that can be attributed to adult tolerance to lactose; Effect of the presence of additional amount of lactase substrate on the lactose tolerance of rats based on a study.

The article reports on the increase in the artificial breeding of cattle in the U.S. in November 1945. It says that over 350,000 dairy cows are producing test tube calves in the country. According to the author, artificial insemination offers several advantages including the increased production of milk and butterfat. The cost of artificial insemination, the arguments against it and the reason why it has not been used extensively with beef cattle are also discussed.

The article reports that a checkoff on the production of butterfat to fund nation-wide advertising and therefore promote consumption and sales of dairy products, as agreed at the gathering of the American Dairy Association in St. Paul, Minnesota.

The article discusses the decrease of U.S. federal price assistance on butterfat and milk to 75% from April 1, 1958. U.S. Agriculture Secretary Ezra Taft Benson explained that the reductions were needed to diminish the incentive for over production. It says that there had been excessive production. It adds that 12,000 tons of dried milk, 89,000 tons of cheese, and 17,000 tons of butter were piled up in government storage depot.

The article describes the specially prepared solution by Philip Schain, chief of the clinical laboratory at Halloran Veterans Administration Hospital in New York City, for taking the butterfat content out of the dairies. During a Milk Industry Foundation convention in Atlantic City, he explained that the solution, which contains two detergents, can dissolve all except the butterfat which will float to the top. He added that the detergent solution can be used to wash the windows.

The article focuses on the celebration of the Dairy Month in New York in June 1967. The event started with the milking of cows in the Central Park Sheep Meadow. It details the purpose of the public milking. A discussion was organized about the butterfat content of the milk produced by the Jersey, Guernsey and Ayshire.