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ID:20451231
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时间:2018-10-13
《guidelines for antibiotic residue avoidance课件》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、GuidelinesforAntibioticResidueAvoidanceS.AndrewUniversityofConnecticutWhyShouldWebeConcernedAboutResiduesinMilk?Thegoalistoproduceanutritious,wholesomefoodforconsumers.Itisessentialtomaintainandfosterconsumerconfidence.ProfitabilityHumanFoodSafetyIssuesSensitivitytoantibioticsImmunological
2、responseBacterialresistancetoantibioticsNolinkestablishedbetweenanimaluseandhumanpathogenantibioticresistance(however,thereisapotentialforthistooccur)AntibioticResidueDefinedas:Detectionofantibioticinmilk:1.atorabovethetoleranceorsafeconcentrationforapproveddrugs,or2.atanyconcentrationforu
3、napproveddrugs3.atanyconcentrationforillegaldrugsAntibioticRoutesofAdministrationIntramammaryTopicalOralskinInjectablefeetIntramuscularteatsIntravenouseyesIntrauterineFeedAdditivesMajorUseofAntibioticsisfortheTreatmentofMastitisIntramammaryDrycowandlactationtreatmentsTopFivereasonsforResid
4、ueViolations1.Milkingatreateddryorlactatingcow2.Samemilkingunitfortreatedandun-treatedcows3.Onequartertreated,milkfromotherthreequartersputintank4.Unawarethatnewlypurchasedanimalsweretreated5.FreshcowmilkcontainedresiduesfromdrycowtreatmentWhydoResiduesOccur?Lackofadequaterecord-keepingLac
5、kofunderstandingantibioticusePoorrelationshipbetweenproducerandveterinarianSischo,andcoworkers,1997RegulationofAntibioticResiduesinMilkMilkisregulatedatthebulktank/tankertrucklevel.PasteurizedMilkOrdinance(PMO)a.undersection6milkissampled4timesduringanyconsecutive6months.b.UnderAppendixNof
6、thePMO-everytankertruckisscreenedforbeta-lactamantibioticsbeginningJuly,1992PenicillinCloxacillinAmoxicillinCephaprinAmpicillinCeftiofur-bulktankalsosampledIfthetankertrucksampleis:PositiveNegativesamplere-testednofurther2xactionifpositive-tracedre-testedatbacktobulktankStateLabRegulatorya
7、ction$$$MilkisanalyzedforantibioticResiduesusingQualitativeTestsThetestsusedhavebeenevaluatedandacceptedbyFDAforusewithbulktank/tankertruckmilk.#ofsamplestested%positive19953,219,0710.101%19963,310,7720.106%Smucker,1997Therefore,approximately99.9%ofmilktestedi
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