"... From the more than 200 million metric tons of corn that the United States produces each year, 85 percent is converted into cows, hogs and chickens in the proportion of 60 millions cows, 100 million hogs and 4 billion chickens. As an index of corn's super conversion powers (double those of wheat), one bushel of corn in a mixed feed bag translated into 15 pounds of retail beef, 26 pounds of pork and 37 pounds of poultry. And this is still corn in a form we can recognize: fodder, silage, shelled grains or fibrous by-products."
January 1, 1970