Haemonchosis血矛线虫病 From: 2007 动物医学（ 2）班

严常燕 许思宇 陈玲

prevention

treatment

diagnosis

symptoms

edipemiology

Life cycle

morphology

introduction

Haemonchosis

Introduction

CATTLESHEEP CAMEL

Site : Abomasum( 真胃 ) small intestine( 小肠 )

Host:

Morphology Buccal capsule( 口囊 ) Cervical papillae （颈乳突） Copulatory bursa （交合伞） Ray （肋） Spicule ( 交合刺 ) Barb( 倒钩 ) Gubernaculum （引器） Vulval flap （阴门盖）

Appearance of male and female The anterior end of adult

Genital pore of femaleCopulatory bursa

Life cycle

Second stage larva

Third stage

Egg

First stage larva

Adult

Epidemiology

life span （寿命）—— one year dormancy （休眠）—— one year

self-cure( 自愈现象 ) the infection rate （感染率）—— highthe infection intensity （感染强度）—— large

The third stage larvae resistance is strong Animals of either sex are equally affected

Highest incidence (89.55%) in the month of July

Symptoms

Diagnosis

Flotation method ( 饱和食盐水漂浮法 ) Larval culture （幼虫培养） Identification （鉴定）

Postmortem diagnosis （死后诊断）

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Treatment

Albendazole( 丙硫苯咪唑 ) Levamisole （左咪唑） Ivermectin （伊维菌素） Mebendazole （甲苯咪唑）

Prevention

Strengthen raising management Improve livestock their own immu

nity （免疫） Not grazing （放牧） , drinking wat

er in the low-lying and wet （低洼潮湿） land Preventive deworming （预防性驱虫） during feeding Note feed, water clean sanitation（卫生设施体系 ）

Thank you!