Ruminant Parasitology

PCC VT program: 1st year Parasitology with Dr. Haveman. Purposly designed for tech students in this class of 2008 to study parasites. Class feel free to make more test for us to practice. I probably will.

Covering ruminant parasitology. This includes all that was on the ruminant test but rephrased and rearraged so that you can't just read the right answer off your test immediately. -I just looked at the test, I don't know whats with on the 1st two Qs. I can't edit them.

What is your age?
Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
What is your gender?
Male
Female
1. __________ sucks blood and may cause bottle jaw, constipation, and dark stool.
Haemonchus contortus
Fasicola hepatica
2. The parasite in #1 lives in the omasum and is a large stomach worm compared to other in this part of the stomach.
T
F
3. The above parasite uses the dung beetle as its intermediate host
T
F
4. The above parasite has relatively large TSOs with samll numbers produced
T
F
5. The above parasite is commonly called the "__________" because of the way the blood-filled gut spirals around the white uterus in the female.
Candy cane worm
Barber pole worm
6. __________ is the medium stomach worm that produces medium sized ova in moderate numbers from a medium sized worm.
Ostertagia spp.
Oesophagostomum sp.
7. Much of the damage caused by Ostertagiasis is from destruction of base producing parietal cells. This can cause hyperefficient digestion and vomiting.
F
T
8. Ostertagia has a indirect life cycle and uses the earthworm as its intermediate host
T
F
9. Type ___ Ostertagiasis is seen with uncomplicated infection in the animal with no prior exposure. Type ____ Ostertagiasis is seen in the animals with arrested development in the wall of the abomasum
I, II
II, I
10. The ova of above parasite are medium sized TSO in moderate numbers. The prepatent period maybe 3-4wks to 3-4ms.
F
T
11. _______ is a small strongyle that may infect cattle, sheep, goat, and many other species. It is a small, abomasal parasite.
Globocephalus
Trichostrongylus axei
12. The eggs of the parasite in the above question are very large and can always be easily differentiated from those of Ostertagia and Haemonchus
T
F
13. The parasite in question 11 has a relative that lives in the large intestine and produces large numbers of small ova known commonly as the "bankrupt worm"
T
F
14. Cooperia spp. are parasites of the large intestine seen most often in populated areas of the country
T
F
15. ______ are large worms that lay very large boat-shaped ova and live int eh small intestine
Nematodirus
Bunostomum phlebotomum
16. The ove of the above parasite requires cold weather to hatch and may cause pathology such as diarrhea even before patentcy
T
F
17. The male worms of the parasite above are bursate and have spicules that protrude beyond the body at a significant distance.
T
F
18. Bunostomum phlebotomum is a true cattle whipworm. It is commonly seen in our area of the Pacific NW.
F
T
19. Strongyloides spp. of cattle and sheep are seen as free larvae on fecal floats
T
F
20. Oesophagostomum spp. are relatively large worms that are very pathogenic (3-4000 worms can kill a cow)
T
F
21. Oesophagostomum are called "nodular worms". They live int he LI in small nodules there.
T
F
22. Trichuris ovis, the ______ of ruminants is fairly common in our area, produces few ova with bipolar plugs and golden color.
roundworm
whipworm
23. _________ spp. is the largest lungworm of the ruminants that we studied.
Hymenolepsis
Dictyocaulus
24. the above lungworm uses the ant as an intermediate hose and is passed in the ant's saliva.
T
F
25. One test for lung worm diagnosis is the Baerman test. It uses _______
MgSO4, lidded test tube, slides
Funnel, rubber tube, and test tube
26. ______ test we used in class for large animal nematodes on the routine fecal exam, uses Epsom salt as it's flotation media. This is a quanitative test
Modified Stoll
Sedimentation technique
27. Meullerius sp. is a sheep and cow lungworm that maybe seen in our area. Larvae have a straight tail.
T
F
28. Fasicola hepatica is the common ______ of cattle, sheep, and goat.
liver fluke
stomach nematode
29. The above fluke uses a snail as its intermediate host.
T
F
30. Common liver fluke ova float well in our typical fecal flotation media.
F
T
31. Pipestem bile ducts and cirrhotic livers are hallmark post mortem findings of liver fluke disease in Oregon, seen mainly in lowland or wet areas.
F
T
32. _______ spp. uses the Orbatid feed mite as an intermediate host and the ove have a "cocked hat" appearance.
Ascaridia
Moniezia
33. Thysanosoma actinoides is the fringed tapeworm and is a common cause of sheep live condemnation
T
F
34. Taenia saginata causes beef measles
T
F
35. The genus name for Coccidia of ruminants is
Isospora
Eimeria
36. The above may be infective to chickens
T
F
37. ________, commonly called Trich is a venereal disease of cattle, and causes return to heat in heifer and unexposed cows.
Trichostrongylus colubriformis
Trichomonas foetus

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