Even in the case of oats the albuminoids, which are the more digestible principles, and therefore those that are the most easily and speedily converted into urea, are present only to the amount of two-thirds of that which exists in the wheat bran.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
So, also, stupor or coma, or even convulsions, may supervene from the poisonous action of urea and other waste or morbid products retained in the blood.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
These waste-stuffs, called urea and urates, are formed in the liver and brought in the blood to the kidneys.
"A Handbook of Health"
Woods Hutchinson