[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fI_4G8f8CenaVHfmgxryWJ2SDhe1eZIyny42A1585554":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":32,"type":33},[],"2024-03-25 21:18:44",135599927,[8,9,10,11,12],"新城疫","鸡传染性支气管炎","鸡传染性喉气管炎","产蛋下降综合征","马立克氏病",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},20,"5145a29d49c75c3db1581111716bb80b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fef38f41f902aaf25dc465460af7d3564.png","禽病防治-22级畜牧","70a6eba8951b4737924c52b624d86dfa","","某蛋鸡群产蛋率突然下降45%,并产畸形蛋,但受精率和孵化率不受影响,鸡群无其它明显症状,病程持续近2个月,鸭胚分离出的病原具有血凝性.该病最可能的诊断是(2017真题上169)",[22,34,44,49,52,57,67,75,85,95],{"answer":23,"createTime":5,"id":24,"options":25,"question":31,"source":32,"type":33},[],135599924,[26,27,28,29,30],"种蛋","饲料","饮水","野鸟","鼠类","某9月龄种鸡群,产蛋率和种蛋的孵化率偏低,部分鸡消瘦、腹部膨大.剖检见肝脏、肾脏、法氏囊、性腺、脾脏等处有肿瘤样结节.该病主要的传播媒介是(2016 真题下137)","v1",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":43,"source":32,"type":33},[],135599925,[38,39,40,41,42],"I系苗(Mukteswar株)","II系苗(B1株)","III系苗(F株)","VI系苗(LaSota株)","V4株疫苗","出口家禽不宜使用的新城疫活疫苗是(2017 真题上134)",{"answer":45,"createTime":5,"id":46,"options":47,"question":48,"source":32,"type":33},[],135599926,[8,9,10,11,12],"某蛋鸡群部分鸡出现轻微呼吸道症状,产蛋量下降,畸形蛋增多,蛋壳变白,蛋清稀薄如水,鸡胚分离出的病原无血凝性.该病最可能的诊断是(2017真题上168)",{"answer":50,"createTime":5,"id":6,"options":51,"question":20,"source":32,"type":33},[],[8,9,10,11,12],{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":32,"type":33},[],135599928,[8,9,10,11,12],"成年蛋鸡呼吸困难,咳嗽,咳出带血液渗出物,喉部和气管黏膜肿胀,出血并糜烂,取发病两天的病鸡喉头黏膜上皮检查,见细胞核内嗜酸性包涵体.该病最可能的诊断是(2017真题上170)",{"answer":58,"createTime":5,"id":59,"options":60,"question":66,"source":32,"type":33},[],135599929,[61,62,63,64,65],"胸肌出血","胰腺出血","肝脏出血","皮肤出血","心脏出血","某4周龄鸡群发病,排白色稀粪,自啄泄殖腔,剖检见法氏囊充血,肿大,囊内积干酪样物,该病还可能出现的主要病变是(2017 真题上187)",{"answer":68,"createTime":5,"id":69,"options":70,"question":74,"source":32,"type":33},[],135599930,[12,8,71,72,73],"禽网状内皮组织增生病","鸡传染性贫血","禽腺病毒感染","90日龄蛋鸡群,贫血,消瘦,陆续出现死亡,剖检见心脏,肝脏等器官有大小不等肿瘤,外周神经肿大,呈灰白色.该病最可能是(2017 真题上188)",{"answer":76,"createTime":5,"id":77,"options":78,"question":84,"source":32,"type":33},[],135599931,[79,80,81,82,83],"马立克病","禽白血病","网状内皮增生症","黄曲霉毒素中毒","髓细胞瘤","9月龄种鸡群,产蛋率和种蛋孵化率偏低,部分鸡消瘦,腹部膨大;剖检见肝脏、肾脏、法氏囊性腺、脾脏等处有肿块,组织病理学检查见肿块主要由大小一致的淋巴细胞组成.该病可能是(2017 真题下121)",{"answer":86,"createTime":5,"id":87,"options":88,"question":94,"source":32,"type":33},[],135599932,[89,90,91,92,93],"法氏囊中的抗体","蛋清中的抗原","肿瘤组织中的抗体","羽毛囊中的抗原","蛋清中的抗体","9月龄种鸡群,产蛋率和种蛋孵化率偏低,部分鸡消瘦,腹部膨大;剖检见肝脏、肾脏、法氏囊性腺、脾脏等处有肿块,组织病理学检查见肿块主要由大小一致的淋巴细胞组成.在种鸡中检疫该病原需检查的是(2017 真题下122)",{"answer":96,"createTime":5,"id":97,"options":98,"question":104,"source":32,"type":33},[],135599933,[99,100,101,102,103],"建立无病原的种鸡群","疫苗免疫接种","药物防治","环境消毒","杀虫灭鼠","9月龄种鸡群,产蛋率和种蛋孵化率偏低,部分鸡消瘦,腹部膨大;剖检见肝脏、肾脏、法氏囊性腺、脾脏等处有肿块,组织病理学检查见肿块主要由大小一致的淋巴细胞组成.预防该病最有效的措施是(2017 真题下123)"]