Exam II - Damalinia bovis

Question 1

What is the common name for Damalinia bovis?

Answer 1

Cattle biting louse

Question 2

What is the difference between Damalinia bovis and Trichodectes canis?

Answer 2

The host. Everything else is identical.

Question 3

Describe the life cycle of Damalinia bovis

Answer 3

E - N - N - N - A, All on host.

Females lay eggs, which develop to nymphs, and after 3 molts fully grown adults are present. Requires the host to complete the life cycle

Question 4

What is/are the site(s) of infection for Damalinia bovis?

Answer 4

head, poll, neck, shoulders, rump, tail switch

Question 5

Are Damalinia bovis numbers higher in the summer or in the winter?

Answer 5

In the winter

Question 6

How do you diagnose Damalinia bovis?

Answer 6

ID the louse

Question 7

Treatment & prevention options for Damalinia bovis?

Answer 7

ectoparasiticides and MCLs

BUT we won’t use MCLs in December for live outbreak in an area that also has hypoderma. Bicause it will treat the hypoderma too and may cause bloat, paraplegia, etc..