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1、孙得发博士诺伟司东北亚区技术总监NovusInternational母猪微量元素的应用实践PracticenutritionoftracemineralnSowAgenda母猪微量元素缺乏的表现妊娠期胚胎对微量元素的需求母猪微量元素需求和利用率的矛盾螯合有机微量元素在母猪中的应用母猪微量元素缺乏问题母猪微量元素缺乏会导致肢蹄病的发生率和淘汰率增高母猪微量元素缺乏导致的皮肤角质化JointSamplesfromExperimentalFarms骨软化症Jubb,Kennedy,andPalmer,1993.PathologyofDomesticAnimals
2、.猪骨软化症与软骨生长板异常有关正常生长板骨软化症生长板Jubb,Kennedy,andPalmer,1993.PathologyofDomesticAnimals.Agenda母猪微量元素缺乏的表现妊娠期胚胎对微量元素的需求母猪微量元素需求和利用率的矛盾螯合有机微量元素在母猪中的应用DaysofGestationFeTracemineraldepositioninFetusmgAdaptedfromMa,2011矿物质在胚胎的沉积妊娠天数铁和锌DaysofGestationTracemineraldepositioninFetusmgAdaptedfro
3、mMa,2011矿物质在胚胎的沉积锰,毫克妊娠天数DaysofGestationTracemineraldepositioninFetusµgAdaptedfromMa,2011矿物质在胚胎的沉积硒,微克妊娠天数DaysofGestationTracemineraldepositioninFetusmgAdaptedfromMa,2011铜,毫克矿物质在胚胎的沉积妊娠天数TMinwholelitterduringgestationAdaptedfromMa,2011Dayofgestation妊娠天数43587391101108115Cu,mg3.0310
4、.1715.2419.4533.1441.0755.35Fe,mg6.1233.9121.6285.1394.9609.4705.9Mn,mg0.050.561.683.864.696.457.48Zn,mg3.4423.057.8117.6178.4241.3281.7Se,mg0.020.140.420.901.442.132.49微量元素在妊娠期中沉积的总量TracemineralschangeinmaternalliverDayofgestationElements43587391101108OpenP-value*Cu,mg72.6114.390
5、.760.461.988.466.00.03CFe,mg3333263213053393134750.69Mn,mg3.033.083.212.913.102.912.900.51Zn,mg1341141431001351381720.48Se,mg1.291.241.251.261.351.301.250.55*Note:L:linearresponse,Q:quadraticresponse,C:cubicresponseMineralanalyzedbyICP-MS妊娠期间微量元素在母体肝脏中的变化妊娠天数Agenda母猪微量元素缺乏的表现妊娠期胚胎
6、对微量元素的需求母猪微量元素需求和利用率的矛盾螯合有机微量元素在母猪中的应用母猪为什么容易出现微量元素缺乏？首先说明是高产母猪母猪在胎儿发育和泌乳过程中动用了自身的微量元素妊娠母猪日粮是高纤维和高植酸磷，影响微量元素吸收随着母猪胎龄的增加体重增大，维持需要也增大矿物质Mineral泌乳需求Milkdemand1摄入Intake2需要的利用效率Requiredefficiency3(gormg/day)(gormg/day)(%)铜Copper(mg)1826.368铁Iron(mg)274206锰Manganese(mg)11051硒Selenium(mg
7、)0.30.837锌Zinc(mg)70263271Calculatedassuminganaveragemilkproductionof10kg/dayandwithaveragemilkmineralconcentrationsderivedfromParketal.(1994),andMahan(2000).2Assumingadailyfeedintakeof5.25kg(NRC,1998).3Minimumdietarymineralutilizationefficiencyrequiredformilkproduction.泌乳母猪微量矿物质日
8、摄入和需求计算值Calculateddailymineralint
