Ogilvie Mills, Inc.

John Labatt Limited

John H Linton

Nick Hussar

John Viscount Cross

William J Esdale

The invention provides a highly nutritional unfermented medium protein animal feed supplement by admixing wet corn bran having an abnormally high moisture content with concentrated corn steep to form a moist cohesive but friable mass, the process eliminating a significant proportion of the energy used in and pollution occasioned by prior art process. In a modification, the above unfermented product is subjected to a natural fermentation stage resulting in a fermented supplement which is microbiologically and gravitationally stable for an extended period of time. One further advantage of the present invention is that the corn bran and steep liquor from a corn wet milling plant can be used in the specific amounts as actually produced in the normal operation of the plant, thereby allowing plant efficiencies to be maintained.

Animal feed supplement

An animal feed supplement is produced from wet corn bran and corn steep liquor exiting a wet corn milling process. Wet corn bran is mechanically dewatered to 30 to 50% solids by weight and then thoroughly mixed with concentrated corn steep liquor having 40 to 55% solids by weight in a ratio of 3:1 to 1:1 to produce a mixture having 35 to 50% solids by weight. This mixture is compacted to form a moist, cohesive, friable, readily transportable mass having a bulk density of 50 to 65 lbs. per cubic foot, a pH of less than 4.5 and a protein content of at least 20% on a dry matter basis. The compacted mass may be permitted to undergo natural fermentation that is substantially anaerobic to a pH of less than 4.25 to produce an animal feed supplement that is microbiologically and gravitationally stable from two weeks to seven months. This process results in significant energy saving and reduction in pollution, and allows using corn bran and steep liquor from a wet corn milling plant as actually produced in normal operation of the plant.

Animal feed supplement prepared from wet corn bran and corn steep liquor

The invention provides a highly nutritional unfermented medium protein animal feed supplement by admixing wet corn bran having an abnormally high moisture content with concentrated corn steep to form a moist cohesive but friable mass, the process elminating a significant proportion of the energy used in and pollution occasioned by prior art process. In a modification, the above unfermented product is subjected to a natural fermentation stage resulting in a fermented supplement which is microbiologically and gravitationally stable for an extended period of time. One further advantage of the present invention is that the corn bran and steep liquor from a corn wet milling plant can be used in the specific amounts as actually produced in the normal operation of the plant, thereby allowing plant efficiencies to be maintained.

A liquid animal feed supplement. The liquid feed supplement, which is gravitationally stable for prolonged periods of time, comprises essentially a colloidal mixture of spent brewers' yeast and a water dispersible water-binding agent in an aqueous alcoholic medium.

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London, Canada

John H Linton