19. Cestodoses of ruminants

Question 1

What is the order of cestodoses of ruminants?

Answer 1

Cyclophyllidida

Question 2

Name a species of cestode that affects small ruminants.

Answer 2

Moniezia expansa

Question 3

Name a species of cestode that affects large ruminants.

Answer 3

Moniezia benedeni

Question 4

What is the size of Moniezia expansa?

Answer 4

6 m long

Question 5

What is the size of Moniezia benedeni?

Answer 5

4 m long

Question 6

What are the morphological features of the scolex of cestodes in ruminants?

Answer 6

• Four suckers
• NO rostellum with hooks

Question 7

Where are the genital pores in cestodes of ruminants located in proglottids?

Answer 7

Both sides of proglottids

Question 8

What is the life cycle starting point of cestodes of ruminants?

Answer 8

Eggs are shed in the feces

Question 9

Cestodes of ruminants: What happens to the eggs after they are shed?

Answer 9

They adhere to vegetation or soil

Question 10

What is the intermediate host for cestodes of ruminants?

Answer 10

Soil mites

Question 11

Cestodes of ruminants: What stage do the eggs develop into inside the mites?

Answer 11

Cysticercoids

Question 12

What symptoms indicate a heavy infection of cestodes in ruminants?

Answer 12

Diarrhea, intestinal obstruction, enteritis, weakness, anorexia, nerve disorder

Question 13

When are cestodoses typically seen in ruminants?

Answer 13

May & June

Question 14

What is the treatment for cestodoses in ruminants?

Answer 14

Praziquantel

Question 15

How can cestodoses be controlled in ruminants?

Answer 15

Alternating pastures

Question 16

How can cestodoses of ruminanats be diagnosed?

Answer 16

Egg in feces, postmortem findings

Question 17

Describe the eggs of the cestodes.

Answer 17

Medium, triangular shape, embryonated, 3 thick shells, transparent, with a pyriform apparatus inside