3919

3920

3921

Basher, S. A.

Rahman, K. M. B.

Samad, Md Abdus

English

OAK Obihiro University Archives of Knowledge

′，Pr∂‘∂ヱ∂♂J．尺g∫り∫．25－2即J夕9jノ  C堺rJ錘◎Jタタj．月ど∫gdrC九Cビ〃JerβrJ＞r♂J♂ヱ∂8〃〟oJどC血r山肌肌〃わgγ  Serological Status to NaturalToxoplasma gondii Infection inn MixedFlocksofSheepand GoatsinBangladesh  M．A，SAMAD′K．M．B．RAHMAN andS．A．BASHER  β甲α〃棚疋げγe捷rJJ叫〟どdJci吼β朗gJd血－ゐAgr血血相JU扇ve相和，  叫叩蝕血帥－2202，β伽gJddどぶ九  R耶dvdl占Se匹mk1992／A呵td封伽托m由一199ユ   Keywords：Toxop］LZSma gOndii，latex agglutination′SerOPOSitive  INTRODUCTION  To文0虻1asma gロnd＝  causes abortlon and perlIlatal  mortalityln goats（Dubey et al．1981；McSporran et al．  1985；Nurse and Lenghauslg86），＆ndln sheep（Hartley and  Marshall1957；Beverley and W且tSOn1961；Plant et al．1974；  Dllbey and Schmltz1981）．The higher serologi（：rCSpOnSe tO  natur－alエ．EOndiilnfectlonln sheep conpared to cattle ha  been reported（Munday and Corbould1979）．An attenpt was  thus carr’ied out to compare the serologlc status Df 8heep  and goats which ver－e re象red together wlthinLected flockBin  Banglade5h．  MATERIAl・S 皇仝迫 川m  Mlxed floeIts of at〉Out lOO 8heep and145 goat5 Vere  re8red at theI】angladesh Ågrlcult11r81UTliver・6ity artificlal  inseminβtion centre and unlverslty farm．Blood sanpleEF Yere  COllected from the jugular veln o王 randomly ＄elected 56  Sheep and 33 goats from the two nlxed flocl【S．These anima18  Were Oflocalbreeds，6－30 nonths of age and of both 象eXeS，  malntained 亭inee blrthin mlxed fl（】C】（S．Ser8 Were Sep且r8ted  following the standard method，and assayed for the presence  O王 antibodles to エ．gondliusinglat巳Ⅹ aggl11tinatiDn teSt  （Elken CheJnlcalCo，Ltd．，Japan）．Sera were BCreened at a  dillユtion ofl：8in U－Wellnicrotltre plates（Nune，Inter  Med．Denmark）and those vhl（：h gave posltlve reaetions were  tltrated11ntill：1024 through serlaldllution．PoBitive  COntrOIs were11kewIse earrled out．ResuItき Were analyzed  Statisticallyl柑1ng Chi－＄quare teSt．  gタ   TOXOPLASMOSIS IN SHEEP AND GOATS Rm 凶旦 DISCUSSlON  Tablelshows the serologlcalreBPOnSe Of sheep and goats  to l．m＝i8t different 告er11m d1111tlons．Thlrty－Si】〈  （64．0，り Sheep and 18 （54．0フり goat8 eXhiblted posltlve  antlbodles to エ．拙＝1．The dlagnostic po＄itive tltre（】f  equaloT greater thanl：6」4 ln sheep（Tree昌 et al．1g89）vas  detectedin 30（53．6％）of the sheep．aIldin12（36．4，‘）of  goats．The serロpOSltlve rate of 53．57％ 1n ＄heep and 36．36欠  1n goat＄ reared under farm eOndlt10nin the present study  dif董er 王r－Om the17．65％in Bheep and12．09フ‘ln slaughtered  goats kept under rur－alcondltLotlaS r’epOrted by S8rrIad et al．  （1992一In Press）ln BangladeBh．Sanad（19g2）thinks that the  hlgher 8erOpOSitlve rate8 0f 8heep and goats to 工．gon（＝1  reared ln farms co111d be attrib11ted to food eontamlnati（）n  Wlth cats■ feee5．  TABLEl：Serologlc 6tatuS Df sheep and goat£ naturally  exposed to Toxol）lasma gond‖  Titre  56 Sheep  33 Goats  No．p（】Sitive（％）  No．posltive（％）  l：8  1：64  1：128  1：256  1：1024  6 （10．71）  12 （21．43）  6 （10．71）   6 （10．71）  6 （10．71〉  6 （18．18）  g （27．27）  3 （0．09）  － （0．00）  － （0．00）  negative（－）  eq118lor greater th8nl：64（di8gnOStl（：pOSltlve titre）  The overallseropo＄itlve rate of sheep and goats to  工．肌‖idid not 5how 且ny glgnlfleant difference，however，  the diagno8tic titre w＆S nOted to be 凰Ignlfic＆ntly hlgherln  gheep（53．57％）relative to goat＄（36．36完）．These findings  are consFiBtent Wlth thosLe Of Fahny et al．（197g），Agarlga et  al．（1981），Oslyemiet al．（1985），Ho5Sain et al，（1987）and  Bekele 811dI【agali（1g8g），Whb reported hlgher seroprevalence  rate81n ＄heep comp8red to goats．In a 島1ml18r St11dy．  however，Slngh and Msoll且（1g86）8nd Nene et 且1．（1g86）  noted hlgher serop081tive rates among goats eompared to  Sheep．  A＄ Shownin Tablel，higher antibody titres vere noted  ln sheep（1：1024）colnpared to goat8（1：128）．Thelack of  docu∬lented reports parallel to the present vork prevents u8  from comparlng our result8．For now，We thlnk that the  higher dlagnostlc tltre，and higher 8erOpO与itive rate in  Sheep conpared to goats may be due to greater ヨu島Ceptlb111ty  Of sheep to naturalエ．gond‖1nfeet10n．F11rther experl－  nentatlons．however．are needed to clarify this supposltion．  二■0   TOXOPLASMOSISIN SHE】≡P AND GOATS  The high serc．positive rates in sheep artd goats to  工．gondiilndlcate that toxoplasmo畠i島i弓 Widespreadln  animal populations in Bangladesh．Sanad（1992）has shown  this in王ection to ca11Se abnormal reproduction outcoT7］e in  black 8erLgal go＆tS．Thus，fur－ther studies on the local  epldemiology．pathological and parasitologlcal aspects of  this infection ls warranted to supplement the present  SerOloglcalobservatlons．  ACXNOWl．EDGEMENTS  The coopera‖on and help Df Dr．＾．7（．F．H．8huiyan of  the Department o董 Genetics and Breeding，andI）r．M．R．Alan  Of the Departmertt oL Anlmal Science，BÅU，Mymenslngh，  Banglade5h are gratefully acknovledgセd．   REFERENCES   Aganga．A・0・，Bellno，E．D．，Adegboye．D．S．占Ilemobade．  A．A，1981．A serologlealsurvey of toxoplasmosislh  food animals（cattle，Sheep，gOatS ＆ BWine）1n two  northern states of Nigeria．ユ旦1．ユ．呈旦旦旦．8：57－62．  Bekele．T．＆ Kasali，0．B．198g．Toxoplasnosisln sheep，  goat包 and cattleln eentralEth18pia．里旦上．旦塁旦．迦．  13：371－375．  Beverley，ノ．K．＾．＆ Watson，W．A．1961．OviJle abortion  and toxopla6mOSl眉1n Yorkshire．鮎止．辿．72：6－11．  D11bey，）．P．8 Schmitz，］．A．1981．Abortion associated  Wlth toxoplasmosisin sheepin Oregon．i．血．出土．地建．  A蔓旦．178；675－678．  Dubey，一．P．．Stlnberg，J．P．＆ Matluck，S．W．1981．  Toxoplasmosis assoclated wlth abortionin goats and  Sheepln Connecticut．A四．旦．ヱ上土．且宣長．42：1624－1626．  Fahmy，M．A．M‥ Ar＆fa．M．S‥ Mandour，A．M．＆ ftahrnan，＾．  A．M．197g．Toxoplasnosisin ru771inants of Asslut  Governorate Upper Egypt．i．旦g上里上．竺旦上．出迫．A旦邑．  39：119－126．  Hartley，W．］．＆ MarshallS．C．1957．ToxoplasTnOSis as a  CauSe Of ovine perinat81mortality．幽．呈．旦皇上．i．  5：119－124．  Hossain．＾・，J301bol，＾，S．，Ba】くir，T．M．F．＆ B＆Shandi，＾．  M・1987・A βer．Ologlcalsurvey of the prevalence of  Toxot）1asma gondiiin slaughter・ed animalsin Saudi  Arabla．A旦里．工£且旦．吐e旦．Para8itol．81；69－70．  McSporran◆ Ⅸ・D＝ McCakghan，C・．Currall■J・Ht ＆l）emsteegt．  A・1985・Toxoplasmosisin goats．毘．呈．地．旦．  33：39－40．  Munday・ BIL・＆Corbould，D・A・1979・Serologlcalresponses  Of sheep and cattle exposed to naturalT【IXOD］as17）a  infection．姐．旦．旦迎．旦皇＿旦上．且豊丘．旦旦土．57：141－145．  Nene，S・S・，Joshi，B．N．占 Patkl，一．1988．Toxoplasma  antibodiesinlocaldomestlc animals．⊥！止．旦．迦且皿．  13：187－189．  ∴‾   TOXOPLASMOSTS TN SHt；EP AND GOATS  Nurse，G．H．占 Lenghaus，C．1986．An outbreak of Toxot）1asma  gondiiabortlon，mummiflcation and perinataldeathsin  goat≦；．Aust．旦皇上一 旦，63：27－2g．  0白iyemliT．Ⅰ．0．，Synge．E．M．M‥ ＾ggbonlahor，D．E．＆  Ågb＆VWe，R．1985．The prevalence of To】くODlasna   且地Å  antibodiesln manin plateau state and TTleat arlimalsi  Nigeria． ′rranは．旦旺‘旦旦旦．工亡旦里．塑旦虔．出ヱg．79：21－23．  Pl且nt．J．W．，f＝chardso11，H．＆ Moyle，G．G．1g74．Toxot】1asma  lnfectlon and abortionln sheep associatedlヾith feeding  graln雲 eOntal¶inated with cat feces．A吐∈止．旦皇上．旦．50：  19－21．  Samad，M．＾．1992．SerロIoglcaldiagnosis of ToxoDlasn  gon（＝iin blaek Bengalgoats associated wlth abnor汀Ial  reprod11Ctiofl．Prev．出土．旦皇旦．13：217－220．  Samad，M．A‥ Rahman．X．B．＆ Halder，Å．X．1992．Sero－  pr’eValence of Toxf）t）1asma EOndliin donesti（：r11minants  in Bangladesh．旦皇上．Par8は1tol．ln Press．  Singh，B．＆ Mso11a．P．1986．Seroprevalence and pathogenesis  Of ToxoDlagma gond‖in sheep and go＆tSirL trOpical  reglons．旦些上⊥．A出』，H＝h．PH）d．A旦エ．34：286－240．  Trees，＾．J．，Crozier．．S．）．，Buxton，D．＆ Blewett，D．A．  1g89．Serodiagno畠is of ovlne tox8plasmo雪l昌：an  as＄eSS7T［ent Of thelatex aggllユtin且tion test and the  Value oflgM speciflc t・itres after experimentaloocyst  lnd11eedinfectlons．旦旦旦．旦旦1．旦旦土．46：67－72．  冴   

Serological Status to Natural Toxoplasma gondii Infection in Mixed Flocks of Sheep and Goats in Bangladesh

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Serological Status to Natural Toxoplasma gondii Infection in Mixed Flocks of Sheep and Goats in Bangladesh

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