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Parasitology > Bovine- Hypoderma, Damalinia, Linognathus and Haematopinus > Flashcards

Bovine- Hypoderma, Damalinia, Linognathus and Haematopinus Flashcards

1
Q

What are Family Oestridae Adults?

A

large hairy flies
nonfunctional mouthparts
short-lived

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2
Q

What are Family Oestridae Larvae?

A

obligatory parasites

host specific

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3
Q

What are Hypoderma bovis, Hypoderma lineatum Common name adults?

A

warble fly, heel fly, ox warble

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4
Q

What are Hypoderma bovis, Hypoderma lineatum Common names larvae?

A

cattle grub

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5
Q

What are Hypoderma bovis, Hypoderma lineatum Host(s)?

A

cattle

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6
Q

What are Hypoderma bovis, Hypoderma lineatum Identification?

A

typical oestrid

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7
Q

What are Hypoderma bovis, Hypoderma lineatum Life cycle?

A

H. lineatum laid in lines of 6 or more on lower limb
H. bovis eggs laid singly
H. lineatum active beginning of summer
H. bovis active later
H. lineatum accumulate in submucosa of esophagus
H. bovis accumulate in epidural fat of spinal cord

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8
Q

What are Hypoderma bovis, Hypoderma lineatum Site(s) of infection?

A

3rd stage larvae found in lumps (warbles) on backs of cattle in spring

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9
Q

What are Hypoderma bovis, Hypoderma lineatum Pathogenesis and lesions?

A

3rd stage larvae under skin cause damage and downgrade carcass; economic loss
H. lineatum death ->bloat
H. bovis toxins -> paraplegia

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10
Q

What are Hypoderma bovis, Hypoderma lineatum Clinical signs?

A

faulty regurgitation, bloat

paraplegia

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11
Q

What are Hypoderma bovis, Hypoderma lineatum Diagnosis?

A

identification of parasite

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12
Q

What are Hypoderma bovis, Hypoderma lineatum Treatment and prevention?

A

MCLs kill early stages

timing

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13
Q

What are Suborder Ischnocera (Mallophaga) (characteristics)?

A

Biting, chewing lice
Wide mandible mouthparts
Feed on skin, hair, feathers, other organic material
3 mm, yellow
Rapid movement to move over skin and covering
Often bird lice

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14
Q

What is Damalinia bovis Common name?

A

cattle biting louse

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15
Q

What is Damalinia bovis Hosts?

A

cattle

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16
Q

What is Damalinia bovis Identification?

A

typical ischnoceran

reddish brown color

17
Q

What is Damalinia bovis Site of infection?

A

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

18
Q

What is Damalinia bovis Life cycle: Winter?

A

Winter favors proliferation
thick coat
cattle housed
parthenogenesis

19
Q

What is Damalinia bovis Life cycle: In summer?

A

In summer lice numbers are low
thin pelage limits sheltered habitat
skin surface temperatures high
sunlight is lethal

20
Q

What is Damalinia bovis Pathogenesis, lesions, clinical signs?

A

chronic dermatitis
in large numbers intensive irritation and pruritus
sign of malnutrition or chronic disease

21
Q

What is Damalinia bovis Diagnosis?

A

identification of louse

22
Q

What is Damalinia bovis Treatment and prevention?

A

various ectoparasiticides

MCLs

23
Q

What are Suborder Anoplura (characteristics)?

A 
Bloodsucking lice, more pathogenic
Pointed “noses”
Large, 3-5 mm
Dark blue, depending on amount blood ingested
Slow moving
Clasping hair shaft
Lice of mammals
24
Q

What is Linognathus vituli Common name?

A

long nosed cattle louse

25
Q

What is Linognathus vituli Hosts?

A

cattle

26
Q

What is Linognathus vituli Identification?

A

Anopluran, size, location

27
Q

What is Linognathus vituli Life cycle?

A

gregarious

forms dense isolated clusters

28
Q

What is Linognathus vituli Site of infection?

A

dewlap, head, neck

29
Q

What is Linognathus vituli Pathogenesis, lesions, clinical signs?

A

heavy infestations can lead to pruritus, anemia and weakness

often sign of malnutrition or chronic disease

30
Q

What is Linognathus vituli Treatment and prevention?

A

various ectoparasiticides

MCLs

31
Q

What is Haematopinus eurysternus Common name?

A

short nosed cattle louse

32
Q

What is Haematopinus eurysternus Hosts?

A

cattle

33
Q

What is Haematopinus eurysternus Identification?

A

Anopluran
largest louse genus of domestic
mammals

34
Q

What is Haematopinus eurysternus Life Cycle?

A

gregarious

form dense isolated clusters

35
Q

What is Haematopinus eurysternus Site of infection?

A

head, ears, eyes, nostrils

36
Q

What is Haematopinus eurysternus Pathogenesis, lesions, clinical signs?

A

serious anemia

weight loss

37
Q

What is Haematopinus eurysternus Diagnosis?

A

identification of louse

38
Q

What is Haematopinus eurysternus Treatment and prevention?

A

various ectoparasiticides

MCLs

Parasitology (23 decks)

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