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1、2014୍36ज22௹ChinaPoultryVol.36đNo.22.2014ൌဒ࣮◎◎ਘႏအ◎◎1~21ರਭಽ࠙μූൡၒඣ࣮*11121**1ѯđᚉᆤᇆđཫૹđ౩ᄉđჯࡹૹđᔋႿૼč1.ᇏݓ୪ြն࿐॓࿐ჽႏအ࿐ݓࡅᇗൌဒ൩đКࣘ100193Ġ2.Кࣘಽ࠙܄ඳđКࣘ102211ĎᅋေğЧ࣮ᆻᄝק່॒৬ਘ1~21ರਭຩഈအಽ࠙μූླေਈb࿊Ⴈ1ರਭ+AAഅսಽ࠙Չaྦ۲2500ᆺđٳљෛࠏٳӮ5۱ԩቆđૄ۱ԩ5۱ᇗگb່ზ-௨-ૣ௨-ზϢٳඣҩൌූμਁԩ۲ූμ-LࡆเđਁԤࠎٸљູ0.176%a0.203%
2、a0.220%a0.241%ބ0.281%đҩק1~21ರਭಽ࠙ളӁྟିbࢲݔğರਁμූඣބಽ࠙ྟљؓಽ࠙ളӁྟିऎႵཁᇷ႕ཙčP<0.05Ďbμූඣაྦྟಽ࠙ਘᇗбӯགྷཁᇷڵཌྷܱčP<0.05Ďđაྦྟಽ࠙ҐൊਈބᄹᇗӯགྷՑ౷ཌܱ༢čP<0.05ĎĠμූඣაՉྟಽ࠙ҐൊਈބᄹᇗӯགྷՑ౷ཌܱ༢čP<0.05Ďbࢲંğ່॒৬ਘအ౦ঃ༯đ1~21ರਭྦaՉྟಽ࠙ሹμූླေਈۚႿಽ࠙ტᇕ܄ඳࡩਈbܱՍğಽ࠙ĠμූĠླေਈTryptophanRequirementofBroilersFedCrumble-pellet*Dietat1to21DaysofAge
3、11121**1WANGBođMINZhizhiđLIXiaominđLIQingyunđYUANJianminđGUOYumingč1.StateKeyLaboratoryofAnimalNutritionđCollegeofAnimalScienceandTechnologyđBeijing100193Ġ2.BeijingHuaduBroilerCompanyđBeijing102211ĎAbstractğThisstudywasconductedtodeterminetryptophanrequirementofbroilersatfedbycrumble-pellet
4、dietrearedonplasticslattedfloors.25001-day-oldAA+maleand2500AA+femalebroilerswererandomlyallocatedinto5groupsč5replicatesđ50chickensforeachreplicateĎ.Corn-Soybeanmeal-Cornglutenmealdietsčcrumble-PelletFeedĎcontaining0.176%đ0.203%đ0.220%đ0.241%and0.281%Trpconsistingof0.176%basisTrpandadditio
5、nalCrystalL-Trpwereprovided.Growthperformancesofbroilersweredetermined.TheresultsshowedthatdietaryTrplevelssignificantlyaffectedtheperformancesčP<0.05Ď.MalefeedconversionwasnegativelywhilemalefeedintakewasquadraticallycorrelatedtoTrplevelsčP<0.05Ďđandfemalebodyweightgainandfeedintakewasquad
6、raticallycorrelatedtoTrplevelsčP<0.05Ďalso.ThecurrentstudysuggestedthattheTrprequirementofbroilersfedbypelletfeedshouldbehigherthanthelevelrecommendedbythebroilerbreedercompany.KeywordsğbroilerĠtryptophanĠrequirement൬۠ರ௹ğ2014-09-01ྩ߭ರ௹ğ2014-11-08∗ࠎࣁཛଢğགྷս୪ြӁြඌุ༢Кࣘ൧ࡅౚԷྍؒ∗∗๙ቔᆀđE-mailğyuanjm
7、@cau.edu.cn-24-2014୍36ज22௹ChinaPoultryVol.36đNo.22.2014ൌဒ࣮μූ൞ކӮնଷᇏ5-᳅ςཋđі1ਁቆӮࠣႏအඣčڄۄࠎԤĎ%႕ཙଷބപࣜ༢ᇏപࣜ־ᇉԮ־ۿିbμμූഡ࠹ඣཛଢ0.1760.2010.2250.2500.274ූԢҕაކӮϢᇉຓđߎҕაט॥ᆫোބϢზ60.10060.10060.10060.10060.100ŀ1łᇉս྆đऎႵࢆಽ࠙ބ࠙ۉᄣሹᆫٛݣਈზϢٸ13.87013.87013.87013.87013.87
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