Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Parasitology - Ectoparasites > Ticks and lice of cattle > Flashcards

Ticks and lice of cattle Flashcards

1
Q

What 2 ticks are found in cattle?

A 
Ixodes ricinus 
Rhipicephalus spp (tropical)
Ablyomma spp (tropical)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the main vector of bovine babesiosis?

A

Ixodes ricinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What habitat do Ixodes riicius require?

A

Wet habitat, under grazed pastures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How can Ixodes ricinus be distinguished?

A

Hypsotome
Palps
Spurs
Groove in front of anus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How many hosts do Ixodes ricinus require?

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What pathogen does Rhipicephalus transmit?

A

Bovine babesiosis - warmer countries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Ambyomma tick a vector of? Describe Ambyomma morphology

A

Heart water in cattle (Ehrlichia rumination)

Hypsotome, camoflauge type pattern on dorsal shield (scutum) and legs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the symptoms of Bovine babesiosis?

A

High fever
Lethargy
Dehydration
D+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What pathogens cause Bovine babesiosis in cattle?

A 
Babesia divergens (main one)
Babesia bovine
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe the pathogenesis of Babesiosis

A

Feeding tick carries Babesia divergent
Develops in salivary gland
Causes progressive haemolytic anaemia and haemoglobinuria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How can cattle ticks be controlled?

A

Organophosphates, SPs, amitraz, prophylaxis
Regular dipping/spraying with acaricides
Vaccination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which cattle tick is resistant to widespread acaricides?

A

Rhipicephalus microplus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 2 mange mites in cattle?

A

Psoroptes ovis

Chorioptes bovis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Is psoroptic or chorioptic mange more severe? Which is more common?

A

Chrioptes more common, less severe

Psoroptes less common, more severe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe the morphology of chorioptes bovis

A

Round head

Short unjointed pedicles ending a cup

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does Chorioptic mange cause?

A

Alopecia
Pruritis
Scaling

17
Q

What treatment is usually given for Chorioptes bovis?

A

Ivermectin

18
Q

What does Psoroptes ovis cause in sheep? Does it affect cattle?

A

Sheep scab

Yes if housed in same area

19
Q

What does Psoroptes ovis feed on?

A

Lymph

Pierces skin

20
Q

What breed of cow has a high prevalence of Psoroptic mange?

A

Belgian blue

21
Q

Descibe the morphology of Psoroptes ovis

A

Pointy head

Long pedicles ending in a2 part trumpet shape

22
Q

What are the symptoms of Psoroptic mange?

A 
Allergic dermatitis 
Severe irritation 
Scratching 
Skin damage
Weight loss
23
Q

Psoroptes ovis is very difficult to treat. Why is this?

A

Belgian blues resistant to MLs

Permethrin has low success rate

Parasitology - Ectoparasites (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions