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zong he fang kong sheng zhu yi xing nao yan
Author(s): DAI Jiequan
Pages: 33
Year: 2013
Issue:
4
Journal: Hunan Agriculture
Abstract: 生猪乙型脑炎主要通过蚊虫的叮咬经皮肤传播.生猪乙型脑炎有明显的季节性,流行高峰期主要在初夏至初秋,一般常在低洼地区散发,或呈地方性流行.
子猪感染乙型脑炎后常表现为体温升高、沉郁、卧地、减食、口渴、结膜潮红、粪便呈干球状、尿少色深、少数跛行、行走不稳,部分病猪出现视力障碍、乱冲乱撞;育肥猪常突然发病,体温升高至40 ~41℃,呈稽留热,精神萎顿,嗜眠喜卧,食欲减少,眼结膜充血潮红,粪便干燥呈球形,表面常附有灰黄色或灰白色的黏液,尿呈深黄色.有的病猪后肢呈轻度麻痹,步行蹒跚,关节肿大.有的病猪表现兴奋,视力障碍,最后麻痹死亡.
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