classification morphology lifecycle diagnosis and treatment of Amoebotaenia sphenoides

1. PREPARED BY:
PRATIK GAUTAM
B.Vsc. & A.H, 3rd semester
IAAS, Paklihawa campus
(A.SPHENOIDES)

2. TAXONOMIC
CLASSIFICATION
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Cestoda
Order: Cyclophyllidea
Family: Dilepididae
Genus: Amoebotaenia
Species: cuneata

3. LOCATION AND HOST
 Geographical distribution: occurs
throughout the world
 Location in definitive host: small
intestine
 Definitive host: domestic fowl & other
gallinaceous birds
 Intermediate host: Earthworms,
particularly Allolobophora,
Ocnerodrilus and Pheretima species

4. DEFINITIVE HOST

5. INTERMEDIATE HOST

6. MORPHOLOGY
 A small tapeworm, up to 4.0 mm long, with
up to 20 proglottids.
 It is roughly triangular in shape
 Armed rostellum with single row of 12-14
hooks
 Irregularly alternate genital pore at extreme
anterior end of proglottid margin
 Sac like uterus and slightly lobed
 Testis 12-20 per proglottid

7. MORPHOLOGY

8. EGG
 eggs are almost spherical and reach
about 35 microns in diameter

9. LIFE CYCLE
 Earthworms feed on gravid segments
passed with faeces of fowl.
 Egg develops into cysticercoid inside
body cavity of earthworm in 14 days
 Fowl feed on such earthworms and
acquire infection.
 Prepatent period is 4 weeks
 Fowls acquire infections frequently after
rains when earthworms come to surface

10. LIFE CYCLE

11. PATHOGENESIS
 This species is not usually harmful
unless infection is heavy
 Light infections may cause decrease in
production
 In case of heavy infection of over 200
parasites/ bird it causes enteritis
sometimes hemorrhagic.

12. DIAGNOSIS
 Presence of A. cuneata can be done by
detection of gravid proglottid in faeces.
 It should be done in fresh faeces as
proglottids rapidly migrate out.
 Diagnosis also can be made at necrospy

13. TREATMENT
 Butynorate (75-150mg/kg)
 Niclosamide
 Hexochlorophen
 Praziquntel
 Albendazole
 Febendazole
 Benzimedazole

14. CONTROL
 Treatment should always be associated
with control measures against
intermediate host.
 Controlling earthworms is difficult to
achieve, alternation of rangeland might
help

15. REFERENCES
 Soulsby,E.J.L., Helminths, Arthopods
and Protozoa of domesticated
Animals, 7th edition, 2012 Affiliated
east west press Pvt Ltd
 MA taylor, R.L. coop, R.L.Wall,
Veterinary Parasitology, Blackwell
publishing
 Images copied from various sites and
slideshare presentations

16. THANK
YOU