Brainscape's Knowledge GenomeTM

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


See full index

Bovine > parasites > Flashcards

parasites Flashcards

1
Q

What are the external arthropods that can cause disease in cattle?

A

mites, lice, ticks, flies

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

what are the general symptoms of cattle with internal parasite infections?

A

rough hair coat, diarrhea, emaciation, weight loss, and blood loss

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

What are the three stomach worms of cattle

A

large (barbers pole), medium (ostertagia / brown stomach worm), and small (trichostrongylus)

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

what is the large worm aka

A

haemonchus placei or barbers pole worm

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

where is the large stomach worm typically found

A

tropical regions

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

what is the medium stomach worms aka

A

ostertagia ostertagia or brown stomach worm

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

which stomach worm is considered to be the single most important parasite of cattle

A

medium stomach worm

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

what special mechanism does the medium stomach worm have

A

is able to switch off is the climate is not suitable

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

ostertagia ostertagia can change the pH of the stomach to what

A

6 or greater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

changing the pH of the stomach causes a protein losing gastropathy which results in

A

hypoproteinemia

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

what is the small stomach worms aka

A

trichostrongylus axei

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

does the small stomach worm survive in temperate weather

A

yes

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

infections made by the small stomach worm are characterized by

A

diarrhea, gastritis, hyperemia

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

a nematode of the small intestine and does not suck blood

A

Cooperia Spp

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

even though cooperia spp has shown to be resistant to ___ and ___, it is still fairly killed

A

benzimidazoles and avermectins

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

Bunostomum phlebotomum is aka the

A

bovine hookworm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

the bovine hookworm can infect cattle through fecal-oral or through

A

skin penetration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

this causes both constipation and diarrhea

A

bunostomum phlebotomum
bovine hookworm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Strongyloides papillosus is aka

A

the bovine threadworm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

the bovine threadworm can infect cattle through skin penetration and ingestion. but is more commonly transmitted by ___ to calves

A

colostrum / transmammary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what type of diarrhea does strongyloides papillosus cause

A

intermittent diarrhea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

nematodirus helvetianus is aka

A

parasitic roundworms

23
Q

parasitic roundworms egg’s accumulate in pastures and hatch when

A

after rain

24
Q

since nematodirus eggs do not hatch until rain what does this produce

A

heavy infections rapidly

25
Q

why are parasitic roundworms difficult to diagnose

A

adult worms do not pass as many eggs

26
Q

Toxocara vitulorum is transmitted by

A

milk / transmammary

27
Q

toxocara vitulorum affects calves 6 months or younger

A

true

28
Q

oesophagostomum radiatum is aka

A

nodular worm

29
Q

nodular worms can cause what clinical signs in calves

A

anorexia, persistant diarrhea, weight loss, death

30
Q

Chabertia ovina is aka the

A

large mouth bowel worm

31
Q

trichuris axei is aka the

A

whipworm of cattle

32
Q

whipworms tend to infect

A

young calves and yearlings

33
Q

trichuris axei eggs are resistant. what can this cause

A

persist on problem premises

34
Q

moniezia expansa and moneizia benedeni are aka

A

common tapeworms of young cattle

35
Q

how do tapeworm segments look

A

wider than they are long

36
Q

how are M. expansa and M. benedeni eggs shaped

A

triangular and rectangular

37
Q

antinematodal that interferes with the worms energy at the cellular level. that has very few side effects in cattle

A

benzimidazoles

38
Q

fenbendazole (panacur / safeguard)

A

benzimidazole that kills lungworms, stomach worms, strongyles

39
Q

albendazole (valbezen)

A

benzimidazole that kills adult liver flukes, tapeworms, stomach worms and strongyles

40
Q

antinematodal that kills by interfering with the nervous system and muscle function leading to neuromuscular paralysis and death

A

Avermectins

41
Q

why do avermectins not kill the host animal

A

they work on glutamate gated chloride channels which is absent in mammals

42
Q

do avermectins cross the blood brain barrier

A

no

43
Q

what 3 drugs belong to the avermectin class

A

ivermectin, moxidectin, and eprinomectin

44
Q

Ivermectin (ivomec)

A

avermectin that kills roundworms, lungworms, cattle grubs, sucking lice and mites

45
Q

moxidectin ( cydectin pour on)

A

avermectin that kills roundworms, lungworms, cattle grubs, mites, lice, and horn flies

46
Q

eprinomectin (eprizero)

A

avermectin that kills roundworms, cattle grubs, lice, mange mites, lungworms

47
Q

which drug of the avermectins has no withdraw period

A

eprinomectin

48
Q

used to treat coccidian and other protozoans if they are present

A

antiprotozoals

49
Q

what is the most prevalent protozoan in cattle

A

eimeria bovis

50
Q

which antiprotozoal can be used in calves

A

amprolium (corid)

51
Q

which antiprotozoal can be used in both calves and adults

A

decoquinate (deccox)

52
Q

coccidiosis - eimeria

A

microscopic parasites that infect the interior of cells lining the lymphatic blood vessels

53
Q

we accumulate roughly 10-20 feet from the pylorus

A

parasitic roundworms

Bovine (4 decks)

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