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1、UTILIZATIONOFPOULTRYLITTERASFEEDFORBEEFCATTLEaPresentedatFDAPublicHearing,KansasCity,MO,October30,2001,onanimalfeedingregulation“AnimalProteinsProhibitedinRuminantFeed”--CodeofFederalRegulations,Title21,Part589.2000.JosephP.FontenotJohnW.HancockJr.Profe
2、ssorDepartmentofAnimalandPoultrySciencesVirginiaPolytechnicInstituteandStateUniversityBlacksburg,Virginia24061Mycommentswillbeconcerningnutritionalvalueofpoultrylitterandsafetyaspectsoffeedingpoultrylittertobeefcattle.Ihaveconductedresearchonfeedingpoul
3、trylittersince1963.Iamwellinformedconcerningtheresearchconductedbyotherscientistsalso.Iamananimalnutritionist.Poultrylitterincludesexcreta,bedding,wastedfeedandfeathers.Beddingmayconsistofwoodshavings,sawdust,straw,peanuthullsorotherfibrousmaterials.Mos
4、tofthepoultrylitterisfrombroilerproduction.Thelittermaybefromonecropofbroilersoraccumulatedoverseveralcropsofbirds.Thelitterusuallycontains20to25%moisture.Poultrylitterisfedmainlytobeefcowsandstockercattle.Little,ifany,isfedtofatteningcattle.Substantiat
5、edamountsarefedinimportantbroiler-producingstates.InVirginia,itisestimatedthat20to25%ofthelitterisfed.IntheU.S.5.6milliontonsoflitterdrymatterareproducedperyear.If20%ofthelitterisfed,overonemilliontonsarefedperyear.Researchonfeedingpoultrylitterhasbeenc
6、onductedsincethe1950’s.WestartedresearchatVirginiaTechin1963.Wehavestudiednutritionalvalue,performanceofcattlefedlitter,animalhealthaspects,qualityofanimalproducts,and5residuesinanimalproducts.Broilerlittercontains25to50%crudeproteinand55to60%TDN,drymat
7、terbasis,andisrichinessentialminerals.Thus,thenutritionalvalueissimilartoorhigherthangoodqualitylegumehay.Performanceinbeefcattlefedbroilerlitterhasbeensimilartocattlefedconventionalfeeds.Animportantaspectistheeffectoffeedinganimalwastesonqualityofanima
8、lproducts.Indifferentexperimentsithasbeenfoundthatfeedingbroilerlitterdidnotadverselyaffectcarcassquality.Furthermore,feedingthelitterdidnotaffecttasteofthemeat.Processingofpoultrylitterisnecessaryfordestructionofpotentialpathoge
