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时间:2020-04-16
《酪蛋白对线性回归法测定磷真消化率的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中凰采禽2014年第36卷第7期ChinaPoultryVo1.36,No.7.2014◎饲料营养◎酪蛋白对线性回归法测定磷真消化率的影响术刘静波,杨跃奎,何健(1.西南科技大学生命科学与工程学院,四川绵阳621010;2.四川省畜牧科学研究院,四川成都610000)摘要:本试验旨在使用线性回归法研究肉鸡饲粮添加酪蛋白对豆粕中磷真消化率测定的影响。采用2x3因子完全随机区组设计将384只15日龄罗斯肉鸡随机分为6个处理,每个处理8个重复,每个重复8只鸡。试验因子包含2种饲粮类型(无酪蛋白添加和添加酪蛋白)和3
2、个磷水平(0.22%、0.30%和0.38%),选择三氧化二铬作为指示剂测定肉鸡对豆粕中磷的利用效率。结果表明:随饲粮总磷水平增加,肉鸡采食量、体增重和饲料转化率显著线性增加,而磷表观消化率和存留率以及干物质消化率和存留率显著线性降低(P3、磷真消化率的测定。关键词:磷;真消化率;豆粕;线性回归法;肉鸡EfectofDietaryCaseinSupplementationonEstimationofTruePhosphorusDigestibilitybytheLinearRegressionMethodLIUJingbo”,YANGYuekui,HEJian(1.SchoolofLifeScienceandEngineering,SouthwestUniversityofScienceandTechnology,Mianyang,Sichuan4、621010;2.SichuanAnimalScienceAcademy,Chengdu,Sichuan610000)Abstract:Theobjectiveofthisstudywastoinvestigatetheeffectofdietarycaseinsupplementationontheestimationoftruephosphorus(P)digestibilityinsoybeanmealforbroilerchickensbytheregressionmethod.Threehundre5、deighty—fourmaleRossbroilerswereallocatedto6dietsconsistingof2factorsina2x3factoria1a1Tangement:diettype(withorwithoutcasein)andPconcentrationsat31evels(0.22%,0.30%or0.38%)inarandomizedcompleteblockdesign.Therewere8birdspercageand8replicatecagesperdiet.Chro6、micdioxidewasusedasanindicatortocalculatePutilizationinsoybeanmealforbroilerchickens.Theresultsindicatedthatbodyweightgain,feedintake,andfeedeficiencyincreasedlinearlywithincreasinggradedlevelofdietaryP(P7、基金项目:西南科技大学自然科学基金(13ZX7156):四J省教育厅自然科学基金(2013SZB0168)通讯作者,E—mail:liuswust@163.C0m27一@中同农禽2o14年第36卷第7期ChinaPoultryVo1.36,No.7.2014drymatterretention,apparentPdigestibilityandPretentiondecreasedlinearlywithincreaseddietaryPcontent(P<0.01).Caseinsupplementatio8、nindietsdecreasedPoutputsindigestaandexcretaofbirds(P<0.01).RegressingPoutputsindigestaandexcretaagainstdietaryPintake,theestimatedtruePdigestibility(71.26%1andPretention(60.58%)forbirdsfeddietswithcas
3、磷真消化率的测定。关键词:磷;真消化率;豆粕;线性回归法;肉鸡EfectofDietaryCaseinSupplementationonEstimationofTruePhosphorusDigestibilitybytheLinearRegressionMethodLIUJingbo”,YANGYuekui,HEJian(1.SchoolofLifeScienceandEngineering,SouthwestUniversityofScienceandTechnology,Mianyang,Sichuan
4、621010;2.SichuanAnimalScienceAcademy,Chengdu,Sichuan610000)Abstract:Theobjectiveofthisstudywastoinvestigatetheeffectofdietarycaseinsupplementationontheestimationoftruephosphorus(P)digestibilityinsoybeanmealforbroilerchickensbytheregressionmethod.Threehundre
5、deighty—fourmaleRossbroilerswereallocatedto6dietsconsistingof2factorsina2x3factoria1a1Tangement:diettype(withorwithoutcasein)andPconcentrationsat31evels(0.22%,0.30%or0.38%)inarandomizedcompleteblockdesign.Therewere8birdspercageand8replicatecagesperdiet.Chro
6、micdioxidewasusedasanindicatortocalculatePutilizationinsoybeanmealforbroilerchickens.Theresultsindicatedthatbodyweightgain,feedintake,andfeedeficiencyincreasedlinearlywithincreasinggradedlevelofdietaryP(P7、基金项目:西南科技大学自然科学基金(13ZX7156):四J省教育厅自然科学基金(2013SZB0168)通讯作者,E—mail:liuswust@163.C0m27一@中同农禽2o14年第36卷第7期ChinaPoultryVo1.36,No.7.2014drymatterretention,apparentPdigestibilityandPretentiondecreasedlinearlywithincreaseddietaryPcontent(P<0.01).Caseinsupplementatio8、nindietsdecreasedPoutputsindigestaandexcretaofbirds(P<0.01).RegressingPoutputsindigestaandexcretaagainstdietaryPintake,theestimatedtruePdigestibility(71.26%1andPretention(60.58%)forbirdsfeddietswithcas
7、基金项目:西南科技大学自然科学基金(13ZX7156):四J省教育厅自然科学基金(2013SZB0168)通讯作者,E—mail:liuswust@163.C0m27一@中同农禽2o14年第36卷第7期ChinaPoultryVo1.36,No.7.2014drymatterretention,apparentPdigestibilityandPretentiondecreasedlinearlywithincreaseddietaryPcontent(P<0.01).Caseinsupplementatio
8、nindietsdecreasedPoutputsindigestaandexcretaofbirds(P<0.01).RegressingPoutputsindigestaandexcretaagainstdietaryPintake,theestimatedtruePdigestibility(71.26%1andPretention(60.58%)forbirdsfeddietswithcas
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