Growth and Haematological Responses of Growing Broiler Chickens (3-6 weeks) to Phosphorus and Phytase Supplementation in Low Nutrient Diet.pdfVIP

Growth and Haematological Responses of Growing Broiler Chickens (3-6 weeks) to Phosphorus and Phytase Supplementation in Low Nutrient Diet.pdf

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JournalofAgriculturalScienceandTechnologyA3(2013)912-919 Earliertitle:JournalofAgriculturalScienceandTechnology,ISSN 1939-1250 GrowthandHaematologicalResponsesofGrowing BroilerChickens(3-6weeks)toPhosphorusand PhytaseSupplementationinLow NutrientDiet M irzaM uhammadHaroonMushtaq一,MuhammadSarwar,TariqM ushtaq,GulraizAhmad4RanaParvin2and , JihyukKim 』.AgroVisions,Faisalabad38800,Pakistan 2PoultryScienceDivision,NationalInstituteofAnimalScience,Cheonan331—801,RepublicofKorea 3.InstituteofAnimalNutritionandFeedTechnology,UniversityofAgriculture,Faisalabad38000,Pakistan 4SadiqFeeds《Pvt.)Ltd..Rawalpindi46000Pakistan Received:February28,2012/Published:November20,2013 Abstract:Theexperimentwasconductedtoevaluatethelow phosphorusdietssupplementedwithdifflerentsourcesofph),taseinlow metabolizableenergy(ME)andcrudeprotein(CP)dietsinbroilers.Fourlevelsofnon-phytatephosphorus(NPP)(O.33%,O.36%, O.39% nad0.42% ofthediet)wereemployedinsixdietarytreatmentsinsuchawaythattheleastlevelofNPPf0.33%1was supplementedwithtwophytaseenzymesnamely6-phytase(Natuphos-5,ooo)and3-phytase(Sunphase)alongwithlownutrient compositionviz.2750kcalMEk/gnadCP18%ingrowingphase(2ld-42d).Atotalof1,400birdswereexposedtosixtreatments inthreereplicatesexceptforthephytasesupplementeddietswhichwerereplicatedfourtimeseach.Non-significnatresultsare obtainedfrom alIperformanceparameters(bodVweightgain.feedintakenadfeedgain)nadseurm minerals(calcium nad phosphorus1between2ldaysto42days.Non-significantresultsarcseenamongalltreatments;evensupplementationofbothtypes ofenzymesdidnotaffecttheoverallresults.Theresultsofthepresentstudydemonstrate0.33% P levelwithoutphytaseare suf6cientinlow MEandCPdiets. Keywords:Non-phytatephosphorus,3-phytase,6-phytase,broiler 1.IntrOductiOn thoseunavailable[6].Theabilityofbirdstoutilize

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