Trematodes of Pig Horse & Poultry สมบูรณ์ แสงมณีเดช

Trematode of Pig Genus Fasciolopsis Genus Echinostoma (Paryphostomum Genus Gastrodiscoides

Fasciolopsis buski Host: pig, man Organ: small intestine Geo. Distri.: Southeast Asia Thailand: central

Morphology Size: 3-7.5 x 0.8-2.0 cm body: oval, broaden posterior large ventral sucker short pharynx & esophagus

Morphology Intestine: tubular from ant. to post. Testes: branches, tandem ovary: branches, right of the body ootype: large, round vitelline gl.: lateral of the body

Fasciolopsis buski

Fasciolopsis buski

Life cycle Intermediate host: snail plant: Trochoibis, Segmentina, Planorbis plant: กระจับ, แห้ว, ผักบุ้ง, ผักกระเฉด, แพงพวย, ผักตบชวา

Pathogenesis Virulence in man cause: local inflammation, deep ulcer, weight loss, diarrhea, ascites, edema, death

Diagnosis & Treatment Dx: fecal examination Rx: hexylresorcinol, tetrachlorethylene, niclosamide, plaziquantel, niclofolan

Prevention 1. Plant 2. Water resource 3. Fecal examination 4. Deworming: pig, man

Echinostoma malayanum (Paryphostomum sufratyfex) Host: pig, man organ: small intestine size: 7-12 x 2-3 mm (cucumber seed) head collar spine = 40-48 spines

Large ventral sucker Tegument: spine Testes: deep lobe, tandem ovary: round, ant. right of testes

E c h i n o s t o m a

Life cycle 1st intermediate host: 2nd intermediate host: same 1st host Indoplanorbis, Lymnea, Planorbis 2nd intermediate host: same 1st host Pila, Vivipara, ลูกอ๊อด

Trematode of Horse Gastrodiscus aegypticus

Gastrodiscus aegypticus Host: ม้า, ลา, ล่อ, สุกร organ: small & large intestine body: saucer shape oral sucker: anterior end

Gastrodiscus aegypticus Posterior sucker: posterior end intestinal caeca: tubular testes: deep lobe, diagonal ovary: posterior to testes

Gastrodiscus spp.

Life cycle Intermediate host: metacercaria: water plants Lymnea, Indoplanorbis, Bulinus metacercaria: water plants

Pathogenesis Diagnosis Treatment young adult more virulence fecal examination Treatment hexachlorophene, dichlorvos, oxycloxanide

Trematode of Poultry Echinostoma revolutum Hypoderaeum conoideum Prosthogonimus pellucidus

Echinostoma revolutum Host: poultry (duck, geese, others) organ: large intestine, caecum size: 10-22 x 2.25 mm head collar spine: 37 spines

Echinostoma revolutum Corner spines = 5 spines testes: lobe, tandem ovary: anterior to testes

Life cycle 1st intermediate host 2nd intermediate host Indoplanorbis, Lymnea, Stagnicola, Helisoma, Physa 2nd intermediate host same 1st host, Vivapara, ลูกอ๊อด

Pathogenesis Severe infection: enteritis in pigeon Diagnosis: fecal examination

Treatment Brothianide oxycloxanide rafoxanide flubendazole plaziquantel

Hypoderaeum conoideum Size: 5-12 x 2 mm large ventral sucker head collar spine = 47-53 spines corner spine = 2 spines

Hypoderaeum conoideum Testes: short sausage shape, tandem ovary & ootype: ant. to testes club- shaped cirrus sac genital pore close to oral sucker

1st & 2nd intermediate host Pathogenesis: local enteritis Lymnea, Indoplanorbis Pathogenesis: local enteritis Diagnosis: fecal examination Treatment: same as E. revolutum

Prosthogonimus pellucidus Organ: oviduct, bursa of Fabricius, cloaca size: 8-9 x 4-5 mm, broaden posterior testes: oval, horizontal cirrus sac: long

Prosthogonimus spp.

Prosthogonimus spp.

Life cycle 1st intermediate host: 2nd intermediate host: no redia Bithynia, Amnicola 2nd intermediate host: แมลงปอ no redia

Pathogenesis Inflammation of oviduct ไข่มีเปลือกบาง, ไม่มีเปลือก, ไข่ขาวไหลออกมาทางทวารหนัก, ไข่แดงแตก, ติดเชื้อแบคทีเรีย, ช่องท้องอักเสบ, ตาย

อาการ ไข่มีลักษณะผิดปกติ ไก่ชอบนั่งอยู่กับที่ เมือกสีขาวไหลออกมาทางทวารหนัก สัตว์มีอาการกระวนกระวาย

อาการ ทวารหนักเปรอะเปื้อนด้วยไข่ขาว ช่องท้องอักเสบ หงอน, เหนียงสีดำคล้ำ ตาย

การรักษา ลองใช้ praziquantel, albendazole

Trematodes of Man S. mansoni S. haematobium S. japonicum

Trematodes of Man S. mansoni S. haematobium S. japonicum