ANSC 3120 Lecture Notes - Lecture 13: B Vitamins, Glycerol, Dairy Cattle

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Other nutrients besides protein (%n x 6. 25) cho, lipids, vitamins, minerals, water. ~ ruminant consuming protein that includes protein and npn. All providing cp based on %n x 6. 25. 4 of the 5 sources (excluding pure npn source) are made up of: But different quantitatively and qualitatively in their amounts of rup and rdp. Recall: limitations of the kjeldahl method for the ruminant. Provides us only w. total n (conversion factor for urea (npn)) Uip (rup) = not available to rumen microbes, by passes ruminal digestion and may be digested in si. Dip (rdp) = attacked by rumen microbes and converted to various n products. W. mp then traveling to the si. = urea recycling from body, along w. salivary urea will be used as a source of n for mp synthesis. Npn = attacked by rumen microbes and converted to nh3 and used for mp synthesis.

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