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How do I determine what proportion of the protein in a feed is supplied by urea or other NPN sources?

Last Updated: February 19, 2008

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If the feed tag shows that not more than 20 percent equivalent protein is from non-protein nitrogen. This means that of the 30 total units of protein supplied in this sample supplement, 20 units or two-thirds are from non-protein nitrogen sources such as urea.

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