Parasites of large intestine of ruminant & pigs - Chabertia

Question 1

What is Chabertia spp affects sheep?

Answer 1

Chabertina ovina

This is the parasite affecting sheep.

Question 2

In which part of the sheep’s body is Chabertina ovina primarily located?

Answer 2

Small intestine and cecum; adult in large intestine

This indicates the typical locations where the adult worms reside.

Question 3

Describe the eggs of Chabertina ovina.

Answer 3

• Medium
• oval, symmetrical
• 2 thin shell
• Unembryonated, 16-32 blastomeres
• Greyish-brown

These characteristics help in identifying the eggs under microscopic examination.

Question 4

What is the morphology of Chabertina ovina?

Answer 4

Large bell-shape buccal capsule, double row of small papillae around, no teeth

The morphology is important for identification and understanding its feeding mechanism.

Question 5

What is the infective stage of Chabertina ovina?

Answer 5

L3

The third larval stage is crucial for the infection process in the host.

Question 6

What is the life cycle process of Chabertina ovina?

Answer 6

Egg is released in faeces, hatches and moults to L1, L2, and L3 in the environment, L3 is ingested on pasture

Understanding the life cycle helps in controlling and preventing infection.

Question 7

Describe the reproductive characteristics of male Chabertina ovina.

Answer 7

Bursa is well developed, spicules are long with gubernaculum

These features are significant for mating and reproduction.

Question 8

What pathogenesis is associated with Chabertina ovina?

Answer 8

Worm draws intestinal mucosa into oral capsule, causing chabertiosis - catarrhal, nodular colitis

This condition can lead to significant health issues in infected animals.

Question 9

What are the clinical signs of Chabertina ovina infection?

Answer 9

Diarrhea with blood, anemia, weight loss

These symptoms are critical for diagnosis and indicate severe infection.

Question 10

What treatments are effective against Chabertina ovina?

Answer 10

Pyrantel, Benzimidazoles, Ivermectin

These medications are commonly used to treat infections caused by this parasite.

Question 11

What method is used for the diagnosis of Chabertina ovina?

Answer 11

Coprological examination

This involves examining feces for the presence of eggs or larvae.

Question 12

Where is Chabertina ovina geographically distributed?

Answer 12

Worldwide

This indicates that the parasite can affect sheep in various regions across the globe.

Question 13

To which order does Chabertina ovina belong?

Answer 13

Strongylida

Understanding its classification helps in studying its biology and ecology.

Question 14

Final host of Chabertia ovina

Answer 14

Sheep