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RUSVM Parasitology > Mites: Non-Burrowing > Flashcards

Mites: Non-Burrowing Flashcards

1
Q

Non-Burrowing mites live on the _____________ or on the __________.

A

Non-Burrowing mites live on the skin surface or on the hair.

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2
Q

Chorioptes bovis mites are found primarily on the __________ and up to the ___________.

A

Chorioptes bovis mites are found primarily on the **back of the hind limbs **and up to the tail head.

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3
Q

_____________ mites feed on skin products, infestation may be asymptomatic or cause mild lesions on the animal. Heavy infestations can lead to pruritis, alopecia and crusting.

A

Chorioptes bovis mites feed on skin products, infestation may be asymptomatic or cause mild lesions on the animal. Heavy infestations can lead to pruritis, alopecia and crusting.

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4
Q

Diagnosis for Chorioptes bovis

A

Skin scrape

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5
Q

Treatment for Chorioptes bovis

A

Crotoxyphos or lime sulfur suspensions

MCLs

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6
Q

Hosts for Chorioptes bovis include:

A

Cattle, sheep, goats, and horses

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7
Q

Foot mange, Leg mange and itchy heel are common names for _______________.

A

Foot mange, Leg mange and itchy heel are common names for Choriptes bovis.

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8
Q

____________ adults can be up to 300um, have rounded mouth parts and pretarsi /pedicles described as short, unsegmented with large cupshaped suckers.

A

Chorioptes bovis adults can be up to 300um, have rounded mouth parts and pretarsi /pedicles described as short, unsegmented with large cupshaped suckers.

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9
Q

____________ adults can be up to 750um, have pointed mouth parts and pretarsi /pedicles described as long, segmented with funnel-shaped suckers.

A

Psoroptes spp adults can be up to 750um, have pointed mouth parts and pretarsi /pedicles described as long, segmented with funnel-shaped suckers.

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10
Q

____________ adults can be up to 300um and have pretarsi /pedicles described as short, unsegmented with large suckers.

A

Otodectes cynotis adults can be up to 300um and have pretarsi /pedicles described as short, unsegmented with large suckers.

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11
Q

____________ adults can be up to 400um, has a body with a waist and have pretarsi /pedicles with large palpal claws.

A

Cheyletiella yasguriadults can be up to 400um, has a body with a waist and have pretarsi /pedicles with large palpal claws.

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12
Q

_____________ found on the dorsum from shoulder to head, areas that are well covered with wool or hair.

A

Psoroptes spp found on the dorsum from shoulder to head, areas that are well covered with wool or hair.

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13
Q

Hosts of Psoroptes spp include _________.

A

Hosts of Psoroptes spp include Sheep, goats, cattle, horses and rabbits.

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14
Q

Common name for Psoroptes ovis is ____________.

A

Common name for Psoroptes ovis is Sheep Scab Mite.

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15
Q

Common name for Psoroptes cuniculi is ____________.

A

Common name for Psoroptes cuniculi is Ear Canker Mite.

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16
Q

Hosts of Otodectes cynotis

A

Dogs and Cats; humans

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17
Q

Common name for Otodectes cynotis is ___________.

A

Common name for Otodectes cynotis is Ear Mite.

18
Q

________ infests the external ear canal and adjacent areas.

A

Otodectes cynotis infests the external ear canal and adjacent areas.

19
Q

Hosts of Cheyletiella yasguri

A

Dogs, Cats, Rabbits; Humans

20
Q

Common name for Cheyletiellla yasguri is ______________.

A

Common name for Cheyletiellla yasguri is Walking Dandruff.

21
Q

__________ infests the back and head.

A

Cheyletiella yasguri infests the back and head.

22
Q

Egg to Adult of Chorioptes bovis is __________.

A

Egg to Adult of Chorioptes bovis is 3 weeks.

23
Q

Egg to Adult of Psoroptes ovis is __________.

A

Egg to Adult of Psoroptes ovis is 1-2 weeks.

24
Q

Egg to Adult of Otodectes cynotis is __________.

A

Egg to Adult of Otodectes cynotis is 2-3 weeks.​

25
Q

Egg to Adult of Cheyletieela yasguri is __________.​

A

Egg to Adult of Cheyletieela yasguri is 2 weeks.​​

26
Q

Psoroptes _________ is highly contagious and considered a reportable disease.

A

Psoroptes ovis is highly contagious and considered a reportable disease.

27
Q

C. bovis is differentiated from P. ovis based on the _________ and _________.

A

C. bovis is differentiated from P. ovis based on the sucker shape and** shape of mouthparts**.

28
Q

Diagnosis of Psoroptes spp by

A

Skin Scrape

29
Q

Prevention of Psoroptes ovis by

A

Acaricidal treatement of infested livestock

Disinfection or 2-4 week vacating of contaminated enclosures

30
Q

Treatment of Psoroptes ovis

A

2 Organophospate dips

Hot lime sulfur dip

MCLs

31
Q

Egg to adult of Psoroptes cuniculi is ________.

A

Egg to adult of Psoroptes cuniculi is 10 days.

32
Q

__________ causes ear canker in rabbits.

A

Psoroptes cuniculi causes ear canker in rabbits.

33
Q

Treatment of Psoroptes cuniculi

A

Ivermectin

34
Q

__________ produces in the external ear large amouts of cerumen, which together with the mite debris and blood becomes thick, dark and dry.

A

Otodectes cynotis produces in the external ear large amouts of cerumen, which together with the mite debris and blood becomes thick, dark and dry.

35
Q

Treatment of Otodectes cynotis

A

Topical acaricidal treatments

36
Q

___________ causes exfoliative dermatits in that many skin scales are shed into the hair giving it a powdery appearance.

A

Cheyletiella yasguri causes exfoliative dermatits in that many skin scales are shed into the hair giving it a powdery appearance.

37
Q

Diagnosis of Cheyletiella yasguri

A

Superficial skin scrape

Combing hair and examining for white moving dots

38
Q

Treatment of Cheyletiella yasguri

A

Acaricidal treatment

39
Q
A

Chorioptes bovis

40
Q
A

Psoroptes spp

41
Q
A

Otodectes cynotis

42
Q
A

Cheyletiella yasguri

RUSVM Parasitology (16 decks)

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