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Non-protein nitrogen feed product and method for producing the same

  • US 3,940,493 A
  • Filed: 12/13/1973
  • Issued: 02/24/1976
  • Est. Priority Date: 08/07/1972
  • Status: Expired due to Term
First Claim
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1. The method of producing a palatable, nontoxic and substantially neutral pH food product for feeding ruminant animals comprising the steps of:

  • a. mixing together a predetermined quantity of an edible, ungelatinized starch-bearing food material selected from the group consisting of corn, sorghum, barley, oats, wheat, hay and silage, a predetermined amount of at least one nonprotein nitrogenous substance selected from the group consisting of urea, biuret, ethylene urea and ammonium carbamate, and a predetermined amount of bentonite,b. the moisture content of the mixture being less than about 15% by weight, the amount of said nonprotein nitrogenous substance by weight in said mixture being about four times greater than the weight of the bentonite, and the starch bearing food being within a range of from 40.6 to 81.25 percent by weight so that the resultant food product has a total protein equivalent of from 50 to 100 percent by weight,c. providing a confined path,d. introducing the mixture at ambient temperature into one end of said confined path,e. compressing the mixture over the full course of said path under progressively increasing compressive pressures to progressively heat the mixture by frictional heat only to a temperature of from 260°

    F. to 320°

    F., and thenf. substantially instantaneously reducing the compressive pressure on the mixture at the end of said path to atmospheric pressure to produce an expanded and gelatinized product having a moisture content of less than 13 percent.

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