实验五 牛羊常见寄生虫的形态特征

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肝片吸虫卵
一端有盖;
卵内结构较疏松。
注意与肝片 吸虫卵比较
7. Schistosoma japonicum(日体分体吸虫)
The body is thread form,Unisexual, not hermaphrodite.
虫体呈圆线状;雌雄异体;雄虫具一抱雌沟。
8. Moniezia (莫尼茨绦虫)
Experiment Ⅴ
The Morphological Features of the Parasites in Cattle and Goats 牛羊常见寄生虫的形态特征
华南农业大学兽医学院
1. Haemonchus contortus(捻转血矛线虫)

The male has an asymmetrical dorsal lobe . The female usually has a vulval flap. 雄虫交合伞有一“人”字形背肋 雌虫有一发达的椭圆形阴门盖。
10. Coenurus cerebralis (脑多头蚴)
Site: brain
11. 棘球蚴
棘球蚴模式图
12. Babesia bigermina (双芽巴贝斯虫)
Typically they are pyriform. The body is longer than the half diameter of red cell. They as pairs are often arranged at a characteristic
16. Mites (螨)
←sarcoptes scabiei (疥螨)
Psoroptes communis → (痒螨)
17. Lice (虱)
血虱
毛虱
作业
请按寄生虫分类体系列出牛、羊
常见寄生虫的中外文名称,并说 明其寄生部位和中间宿主情况。
4. Bunostomum spp. (仰口线虫)
Site: small intestine
5. Fasciola hepatica (肝片吸虫)
The anterior end is conical and marked off
by distinct shoulders from the body. The egg is oval, operculate, yellow and large . 成虫体前端具头锥和肩部; 虫卵椭圆形,淡黄色,一端有卵盖。
and
an
虫体呈柳叶状;具有一根鞭毛和波
动膜;细胞核位于虫体中部。
14. Theileria spp. (泰勒焦虫)
Theileria annulata (环形泰勒虫)
15. Cryptosporidium spp. (隐孢子虫)


卵囊呈椭圆形,囊壁 光滑,一端有裂缝。 成熟卵囊含有4个裸 露的香蕉形子孢子和 1个残体。
的颈侧翼和1对颈乳突。 3. Oe. venulosum without above features. 微管食道口线虫无上述特征。 4. Oe. asperum has an inflated cuticular cephalic vesicle. 粗纹食道口线虫头囊发 达。
3. Toxocara (syn. Neoascaris) vitulorum (犊弓首蛔虫)
Oral Sucker (口吸盘) Ventral Sucker (腹吸盘)
Ovary(卵巢)
Testis(睾丸) intestine(肠管)
肝片吸虫
The ovary, testes and caeca much-branched. 肝片吸虫的卵巢、睾丸和肠管都高度分枝。
姜片吸虫
6. Paramphistomum (前后盘吸虫)
2. Oesophagostomum (食道口线虫)
1. Oe. radiatum has two inflated collars. 辐射食道口线虫头囊分成两部。 2. Oe. columbianum has a pair of broad cervical alae. 哥伦比亚食道口线虫有发达
Each segment contain two sets of genital organs . In M. expansa interproglottidal glands forming row of rosettes, whereas in M.
benedeni they are confined to short row close to the middle of proglottis margin. 每个成熟节片有两套生殖器官;贝氏莫尼茨绦虫节间腺呈横带状,而扩张莫尼茨绦 虫的节间腺分散排成一行。
angle with their narrow ends opposed. 虫体长度大于红细胞的半径,两个梨籽形虫体以其尖 端成锐角相联。
13. Trypanosoma (锥虫)
Elongated spindle-shaped protozoa
来自百度文库ossess
a flagellum undulating membrane.
9. Cysticercus bovis (牛囊尾蚴)
The cysticercus is greyish white, about 1.0 cm in diameter. There is a scolex on the wall of cysticercus. 牛囊尾蚴呈灰白色,黄豆般大小,囊壁上有一反凹头节。
The adults are small, conical, maggot-like flukes One sucker is at the tip ,and the other at the base . 虫体呈圆锥状;一吸盘在体前端,另一吸盘在体后端。
前后盘吸虫卵
椭圆形; 无色或灰褐色;

T. vitulorum is the largest intestinal parasite of cattle . The egg is subglobular, with a thick pitted shell. 犊弓首蛔虫为牛体内最大型线虫; 虫卵近圆形,具凹凸不平的厚卵壳。
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