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广西黑山羊球虫病诊治

Sichuan Animal & Veterinary Sciences(2023)

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Abstract
1 流行特点 羊球虫病是呈世界性分布的寄生虫病,其由艾美耳科艾美耳属的球虫寄生于羊肠道所引起. 发病羊常出现食欲下降、下痢、消瘦、贫血及营养不良等症状,导致饲料转化率和生长速度降低,严重时病羊可发生死亡. 任一品种、年龄的山羊、绵羊均对球虫易感,尤其以1~3月龄的羔羊发病最严重,发病率可达100%,病死率超过80%.羔羊的感染率和发病率随日龄的增长而逐渐降低,成年羊一般为带虫者,自身通常不发病,但存在散播病原的风险.
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