Common Parasites of Livestock: External Parasites

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Flies have a short life cycle of about how many days?

15 to 30 days

Mites

Acariformes

External parasites are organisms which live on a host and thrive at the expense of the host.

True

T/F, A treatment for lice is the application of a pour-on solution.

True

T/F, External parasites are common vectors for disease transmission.

True

T/F, External parasites are considered zoonotic.

True

T/F, The most common way to treat external parasites is with dewormers.

True

T/F, Ticks carry diseases which are considered zoonotic.

True

What species do cattle grubs mainly affect?

Cattle

Which of the following external parasites create breathing holes in the back of their host.

Cattle grubs

Mosquitoes

Culicidae

How are external parasites transmitted to livestock?

Direct contact

T/F, Mosquitoes can transmit diseases such as mange or scabies.

False

Which of the following is NOT a place where flies may lay eggs?

In dry organic matter

Where do ticks lay their eggs?

In the environment after falling off the host

Flies lay their eggs in which of the following places.

In the manure of a host

What type of external parasite requires water for the eggs to mature and hatch?

Mosquitoes

What NOT a symptom of the external parasite lice?

Painful bites

Lice

Phthiraptera

Mites lay eggs on the _______ of the host.

Skin

Which of the following is considered a treatment for horn flies?

Application of a feed additive

Ticks

ixodia


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