仔猪肠道疾病.ppt

EntericDiseasesofYoungPigs仔猪肠道疾病，作者：larryfirkins，dvm，ms，mbacoloreofvreter medicineuniversityofillinois美国伊利诺伊兽医学院粪中水分含量太低normalally，muchofthefluidibsorbeforeitesmallinginebeforeitexitstheileum一般，大部分水进入会场后，calloonservestoconservewaterandomolytte MechanismsofDiarrhea腹泻机制，EffusiveDiarrhea泄漏底部腹泻Resultofseveredamagetomucosa粘膜严重损伤，结果是Necrotoxinsproducedbybacteria细菌引起的坏死毒素leakageofseofseeria proracted diarrhea猝死和长期腹泻、ArrivingataDiagnosis诊断、Selectionofspecimens疾病材料收集Diarrheaof24hrsorless腹泻开始后24小时内进行输尿管治疗长章节段segments 1cmlong，opened lengthwise不按照垂直大小收集1厘米左右的章节段，而是Freshsamples示例新鲜710 cmsegmentsofileum、Jejunum 7 10cm董事长和工厂章节段segmentsofileum 分泌过多腹泻Hypersecretiondiarrhea对于12至3至4天以上的猪腹泻，diarrheafrom 12 hoursto 3-4 daysMaybeextremelywatery以后发病的每个巢都比较严重疫苗-母猪最常见的致病菌株，产前5周和2周注射后，在母猪给胎儿2周注射一次，应含有K88、K99，987P、F41。bact Erin-mostcommonpathogenicsrainfinictsows 5week sand 2 weekspriortofarrowingsubsequencefarrowings-2 weeks only，hours PreventionandTreatments预防和治疗，vaccinate sow S5 and 2 weekspriortofarrowingmayrequredevelopmentfanautogenousvaccine在分娩前5周和两周对母猪免疫，以及Causeisacoronavirus病原体为冠状病毒attackscleallslintegtheismallitestine攻击小肠内壁细胞survivinesforlongperiodsoftimeehetenvironment，可以在环境中存活很长时间Veryshortincubationperiod潜伏期很短，within 2-3 daysmajorityofpigsonfarmcanbeinfected猪场大部分猪被感染，SourcesofInfection感染胃肠炎感染源，primarity ，TGEImmunization感染胃肠炎免疫，delberateentireherdexposuretovirus故意让整个猪群接触病毒Timingisimportant的时间重要吗？产房里有感染吗？goalistoshortcentheoveralleffect目标缓解整体影响，对TGEImmunization感染胃肠炎免疫，对Ifnotinfarrowingfacility分娩室进行isolatthesefaclitiesfromtherestofthefaction母猪125毫升(半杯)混入饲料。feedtosowsatleast 3 weekspriortofarrowing至少可以在分娩前3周，在母猪plannedexposuretospectificgroupsmaynotecontrol中不包括针对特定年龄段猪的计划感染Postweaninginthenursery断奶后，保育猪Notallpigsorlittersaffected并不是所有猪或巢都感染了。Vomitingisrare很少发生在呕吐Sowsnotsick母猪身上，DealingWithEnzooticTGE处理区域(慢性)传染性胃肠炎，Entireherde