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1、DavidAnderson,TexasA&MUniversityC.WilsonGray,UniversityofIdahoFeedingCornCo-products inDairyHerdsOverviewOverviewofDDGsCharacteristicsTypesofcornco-productsChallengesinFeedingcornco-productsEconomicsofcornco-productsSummaryForStarters…ThisIsn’tNewBrewer
2、sandDistillersGrainhavebeenfedforeverCan’tJustFeeditAloneTherearen’tmanyfeedsyoucanfeedexclusivelyIfPriceisRightandWe’llFeedALotLocation,Location,Location…Where’stheFeed?WherearetheLivestock?Distiller’sGrainBasicsKeypointsonethanolco-productsWhattypesof
3、productsareavailable?Howmuchproductcanbeusedintheration?Howdifferentarethenutritionalpropertiesofspecificco-products(lowoil,lowprotein,modifiedmoisture,mixtures)?Whichfeedrationcombinationsworkbest?Canthevariationinsomenutrientsbereduced?Source:DanLoy,I
4、SUTypesofDDGProcessingWetMillAccountsforlargestshare&costlyMultipleProducts:highfructosesweetener,cornoil,ethanolcornglutenmeal,cornglutenfeedandothertypesDryGrindGenerallysmallerandlesscostlyTwoProducts:EthanolDistillersGrainandSolublesWetMilling-CornG
5、lutenFeedCORNSTEEPWASHWATERGRINDSEPARATIONWETCORNGLUTENFEEDSTARCH,SWEETNER,ALCOHOLGLUTENMEALCORNOILSTEEPCORNBRANDRYCORNGLUTENFEEDSEM,screenings,distsolublesProductsofWetCornMillingOnebushelofcornproduces:ProductPoundsStarch31.5Furtherprocessedinto33#ofs
6、weeteneror2.5gallonsofethanolGlutenfeed13.5Glutenmeal2.5Cornmeal1.6CornGlutenFeed(CGF)Cornbran+steepCanbewetordryModeratecrudeprotein,CP=16-23%80%ofCPisDIP(ruminallydegradable)Lowfat,moderatefiber,TDN=80101-115%ofenergyvalueofdry-rolledcornProductvariat
7、ionissignificantwithinandacrossplantsduetoamountofsteepaddedbacktothecornbranOatmeal-typeappearanceDryMilling-DistillersGrains+SolublesCORNGRIND,WET,COOKFERMENTATIONYEAST,ENZYMESSTILLALCOHOL&CO2STILLAGEDISTILLERSGRAINSWDG,DDGDISTILLERSSOLUBLESWDGSDDGSPr
8、oductsofDryCornMillingOnebushelofcornproduces:Ethanol2.7gallonsDistillersgrains&solubles17-18poundsDGSareonethirdtheweightofthecornandallbutthestarchisconcentratedintothisone-thirdSulfurisconcentratedandmayhavebeenusedinthefermen
