zizhuchushenghouduosuoshiyizhongxiantianxingzhenchanzheng。zizhuxiantianxingzhenchanshiyouchangqicunzaiyuziranjiedexiantianzhenchanbingduyinqizizhuyuchengzhangaidechuanranbing。benbingzhuyaofashengyuchushengbujiudezizhu,yisizhi、頭部或全身發生有節奏的震顫為臨床特征,臨床上有的是部分子豬發病,有的是全窩子豬發病,成年豬呈隱性感染或慢性感染。
流行特點
本病的傳播方式為垂直傳播,僅感染豬,不同品種及其雜交後代均具有同樣的易感性;其發生無明顯季節性;初產母豬產子多發生,經產母豬產子極少發生;分娩過感染子豬的母豬以後所產幾窩子豬通常都不發病。本病呈散發性,每次流行的致死率為10%~30%;康複豬常成為帶毒者,種公豬可被患病母豬感染為傳播者。
臨床症狀
妊ren娠shen母mu豬zhu無wu任ren何he異yi常chang表biao現xian,而er新xin生sheng子zi豬zhu在zai剛gang分fen娩mian至zhi幾ji小xiao時shi出chu現xian震zhen顫chan,伴ban有you後hou肢zhi無wu力li,共gong濟ji失shi調tiao,一yi窩wo子zi豬zhu中zhong部bu分fen或huo全quan部bu發fa病bing,但dan輕qing重zhong程cheng度du各ge有you差cha異yi,一yi般ban部bu分fen發fa病bing者zhe症zheng狀zhuang較jiao輕qing,全quan部bu發fa病bing者zhe症zheng狀zhuang較jiao重zhong。震zhen顫chan呈cheng多duo樣yang性xing的de舞wu蹈dao動dong作zuo,並bing且qie震zhen顫chan是shi持chi續xu性xing的de,臥wo地di時shi震zhen顫chan頻pin率lv降jiang低di,而er睡shui眠mian時shi震zhen顫chan停ting止zhi,但dan站zhan起qi後hou又you震zhen顫chan,前qian肢zhi震zhen動dong劇ju烈lie的de子zi豬zhu常chang呈cheng犬quan坐zuo式shi,病bing子zi豬zhu行xing動dong困kun難nan無wu法fa吃chi奶nai,受shou噪zao聲sheng、驚嚇、寒冷、興奮等刺激時加重。病程因豬而異,輕的常於2~8周恢複正常,重的常因震顫劇烈或四肢麻痹、痙攣、導dao致zhi哺bu乳ru困kun難nan而er被bei餓e死si或huo因yin運yun動dong障zhang礙ai被bei母mu豬zhu壓ya死si。震zhen顫chan消xiao失shi的de子zi豬zhu在zai興xing奮fen或huo應ying激ji的de條tiao件jian下xia仍reng可ke再zai發fa病bing,患huan病bing豬zhu在zai生sheng後hou一yi周zhou活huo著zhe的de一yi般ban預yu後hou良liang好hao。
病理變化
poujianbingsizizhu,tongchangwumingxianyanguanbianhua,duishenjingxitongzuozuzhixuejianzhashizaizhongshushenjingxitongjianyousuiqiaoxingchengbuquan,xiaonaofayubuquan,naoxueguanzhouweijianxitebieshinaojibuyouchongxue、出血等病變。
鑒別診斷
根據分娩後新生子豬呈特征性的持續震顫或痙攣,震顫消失時同健康豬,可作出初步診斷。注意與低血糖症、豬瘟、偽狂犬病、豬細小病毒病、乙型腦炎等引起的死胎和產後不久出現神經症狀而死亡的子豬病相區別。
防治措施
benbingshangwuyouxiaoyimiaohetexiaoliaofa。yufangbenbingzhuyaoyikaoyibanxingdeweishengfangyicuoshi,bucongyoubenbingdezhuchangyinjinmuzhu,fangzhigezhongyingjixingciji,zizhuchibudaomurushi,yidingyaojinxingrengongfuzhuchinaihuorengongburu,zheyangkeshiduoshubingzizhuzirankangfuerjianshaosiwang。
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