Extrusion processed starch-npn ruminant feed and method of...

Details Extrusion processed starch-npn ruminant feed and method of... Extrusion processed starch-npn ruminant feed and method of...

A - Human Necessities

23

K

99/30

A23K 1/18 (2006.01) A23K 1/00 (2006.01) A23K 1/16 (2006.01) A23K 1/22 (2006.01)

Patent

CA 1046336

A gelatinized, palatable, nontoxic extrusion cooked ruminant feed is disclosed which contains a disrupted starch-bearing food source reacted with a nonprotein nitrogenous substance (NPN) and a quantity of lipid material such as animal fat which serves to greatly facilitate product performance and handling of the feed, especially when certain tuber or waxy starch materials are used therein or in the case of high pro- tein equivalent feeds where the starch-bearing material-NPN (preferably urea) ratio is on the order of 4 to 1 or greater. In addition, lipid addition synergistically acts to yield cooked products exhibiting derivable bacterial protein levels approxi- mately equal to or better than otherwise identical feeds free of added lipid notwithstanding the fact that extent of starch disruption and consequent gelatination within the feed is normally decreased by virtue of the lipid addition. In pre- ferred forms, lipid in the form of animal fat or the like is added to the feed constituents in liquid form and in amounts ranging from 0.25 to 10% by weight prior to cooking of the feed in a conventional extrusion cooker, and the expanded and gelatinized cooked product is thereafter cut and dried to its final form as ruminant feed which can easily be shipped, stored and fed to ruminants as a high protein food source.

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