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1、LivestockScience123(2009)169–174ContentslistsavailableatScienceDirectLivestockSciencejournalhomepage:www.elsevier.com/locate/livsciAnalysisofmortalitypatternamongindigenousandupgradedpigsundersubtropicalhillagroclimaticconditionsineasternHimalayasR.Basumatary⁎,S.Naskar,A.Kumare
2、san,G.Khargharia,G.Kadirvel,R.K.BardoloiAnimalProductionDivision,ICARResearchComplexforNEHRegion,Barapani,Umiam,Meghalaya—793103,IndiaarticleinfoabstractArticlehistory:Mortalityrecordsofindigenousandupgradedpigs,rearedundersubtropicalhillagroclimaticReceived15May2008conditions,
3、werecollectedfortheperiodof11years(1993–2003),analyzedandthemortalityReceivedinRevisedform3November2008patternwascorrelatedwithgeneticgroup,ageofpigs,climaticfactorsandcausesofdeath.Accepted6November2008Resultsrevealedthattherewassignificant(pb0.05)differenceinmortalitybetweenth
4、eindigenous(6.05%)andupgraded(5.64%)pigs.ThemortalitypercentagewassignificantlyKeywords:(pb0.05)higherinbothgeneticgroupsbetween0and4monthsofagecomparedtosevenMortalitypatternmonthsandaboveagegroups.Amongdifferentseasons,significantly(pb0.05)higherIndigenouspigmortalitywasobserve
5、dduringpost-monsoonandwintercomparedtootherseasons.TheUpgradedpigClimaticfactorsoverallmortalitypercentagewas4.74,5.25,7.51and6.56duringpre-monsoon,monsoon,post-Agemonsoonandwinterseasons,respectively.Indigenouspigsrecordedsignificantly(pb0.05)higherpre-weaningmortality(14.26%)t
6、hantheupgraded(9.58%)pigs.Amongdifferentcauses,digestivedisordersaccountedtosignificantly(pb0.05)highermortalityfollowedbymiscellaneousandrespiratorydisorders.Thestudydevelopedalinearregressionmodel,whichcouldfairlypredictthemortalitypatternbasedontherainfall,relativehumidityand
7、2temperature(R=58.3%).©2008ElsevierB.V.Allrightsreserved.1.Introductiondroughtanddiseases(Bujarbaruahetal.,2007).Inspiteofthesefavourableattributes,theindigenouspigscouldnotPigkeeping,likeotherdevelopingcountries,isessentiallyfulfillthedemandofporkandtherefore,thetribalfarmersas
8、ocio-culturallyintermingledactivityofresourcepoorhaveb