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feedstuff composition. Consequently,users of thesetables are cautioned thatindividual product samplesmay vary from the valuescited in these tables. Becausecomposition of wet corngluten feed varies dependingon the manufacturing locationreaders are advised toobtain composition data forthis product from their supplier.EnergyMetabolizable energy intakebelow the requirement is themost common cause of suboptimumperformance bylivestock and poultry. Corngluten meal has a very highlevel of metabolizable energyfor all classes of livestockand poultry. Ruminants,such as cattle andTable 2.Composition of Corn Wet Milled Feedssheep, metabolize the greatestamount of energy fromcorn gluten feed because oftheir ability to effectivelyutilize the fiber components.This is the reason cattle derivealmost as much energyfrom gluten feed as fromcorn gluten meal. Researchhas shown that the net energygain of wet corn glutenfeed is 0.6 mcal/lb 106 .Corn gluten feed and corngerm meal are similar towheat millfeeds and otherhigh-fiber grain co-productsin metabolizable energycontent for poultry andswine. Often overlooked,corn steep liquor is an excellentsource of energy forlivestock and poultry whenexpressed on a dry matterbasis.Unit Corn Gluten Corn Gluten Corn Germ Corn SteepFeed Meal Meal LiquorDry Matter % 87-90 90 90 50Protein % 18-22 60 20.5 23Fat % 2-5 2.5 1 0Fiber % 6-10 2.5 12 0Acid DetergentFiber (ADF) % 13 5 14 0Neutral DetergentFiber (NDF) % 35 — — 0Ash % 6.5-7.5 1.8 3.8 8Additional DataDensity lb/cu.ft. 25-30 33-36 24-28 10.5Xanthophylls mg/lb 16 225 0 0Linoleic Acid % 2.2 3.2 .5 0— Data Not Available20