18. Cestodoses of horses

Question 1

What is the order of cestodoses of horses?

Answer 1

Cyclophyllida

This order includes various species of tapeworms affecting horses.

Question 2

Name a species of cestodoses in horses that can reach up to 80 cm in length.

Answer 2

Anoplocephala magna

This species is one of the largest tapeworms affecting horses.

Question 3

What is the length range of Anoplocephala perfoliata?

Answer 3

5 – 8 cm

This species is smaller compared to Anoplocephala magna.

Question 4

What is the intermediate host (IH) for the cestodoses of horses?

Answer 4

Orbatidae mites – cysticercoid

These mites play a crucial role in the life cycle of the tapeworms.

Question 5

Describe the morphology of cestodoses of horses.

Answer 5

4 suckers and 4 lappets called auricula

The cuticula auricula refers to the structures that aid in attachment.

Question 6

What is the shape and characteristics of the eggs produced by cestodoses?

Answer 6

M, D – shape (polyedric), 3 thick shells, embryonated (oncosphere), pyriform apparatus, light brown

The unique features of the eggs help in their identification.

Question 7

What is the life cycle of cestodoses of horses?

Answer 7

Eggs in segment are passed in the feces, ingested by free-living mites, cysticercoid develops, adult tapeworms found in horse intestine 1-2 months later

This cycle highlights the importance of controlling mite populations.

Question 8

What is the pathogenesis of cestodoses in horses?

Answer 8

Mild infestation, often no signs; A. perforiata most dangerous

This species can cause significant health issues despite often being asymptomatic.

Question 9

List some clinical signs associated with cestodoses in horses.

Answer 9

• Enteritis
• Colitis
• Intestinal perforation
• Hemorrhagic enteritis
• Colic

These signs can lead to severe complications if not addressed.

Question 10

What are the treatments available for cestodoses in horses?

Answer 10

• Praziquantel + Abamectin = abamax plus
• Praziquantel + Ivermectin = equimax plus

These medications are effective in treating tapeworm infestations.

Question 11

What is the control method for cestodoses in horses?

Answer 11

Periodic treatment

This refers to regular treatment protocols to manage infestations.

Question 12

How can cestodoses be diagnosed in horses?

Answer 12

• Egg in feces
• ELISA
• PCR
• Flotation (breza)

Various diagnostic methods help in identifying the presence of tapeworms.

Question 13

Paranoplocephala mamillana does not have…

Answer 13

lappets

Question 14

Location of Anoplocephala magna, Anoplocephala perfoliata, Paranoplocephala mamillana

Answer 14

• A. magna: ileocecal junction
• A. perfoliata: ileocecal junction
• P. mamillana: SI (0.6-5cm)