General Parasitology and Helminthology: Taenia hydatigena

Taenia hydatigena

TAENIA HYDATIGENA

Host	Dog and wild carnivores
Location	Small intestine
I/H	Domestic and wild ruminants (sheep, cattle, sometimes pigs also act as I/H)
Metacestode stage	Cysticercus tenuicolis

Morphology

Rostellum armed with 2 rows of pen knife shaped hooks. [1^st row – 26 and 2^nd row – 46].
Adults are upto 75 – 500 cm in length
Each segment contains a single set of genital organ. Genital pore is irregularly alternate
Ovary is situated at the posterior border of segment
Uterus has median stem
Testes are numerous
Gravid segments are longer than wide. In gravid segment, uterus has 6 to 10 lateral branches. (Important character for identification of Taenid tapeworms).

Egg

Contain hexacanth embryo.
They have 4 layers, made up of blocks giving radiate appearance or ‘cart wheel’ appearance.

Last modified: Friday, 23 September 2011, 10:32 AM

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VPA 211: General Veterinary Parasitology and Helminthology (3+1)

Taenia hydatigena

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