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Lab 12 Appendix: Large Animal Parasite Review - Horses

Parasite Location in Host Diagnostic Stage** Lab Specimen+
Gastrophilus stomach none SSB 70, 71
*Giardia sm. intestine cysts in feces  
*Cryptosporidium sm. intestine cysts in feces SSB 97
Parascaris sm. intestine eggs in feces B 19
Strongyloides sm. intestine eggs in feces B 49
Anoplocephala sm.+lg. intestine eggs in feces  
*Eimeria intestine oocyst in feces  
Oxyuris lg. intestine eggs on perianal skin B 13
Strongylus lg. intestine eggs in feces SSB 30
Trichonema lg. intestine eggs in feces SSB 26
Setaria peritoneal cavity microfilaria in blood  
*Dictyocaulus lungs larva in feces  
Psoroptes skin adults on skin SSB 87
*Chorioptes skin adults on skin  
*Sarcoptes skin adults in skin-scrape SSB 88
Dermacentor skin adults on skin  
*Damalinia skin adults on skin or hair  
*Haemopinus skin adults on skin or hair  
Trichodectes skin adults on skin or hair  
*Onchocerca lg. ligaments microfilaria in skin  
Babesia blood trophozoite in RBCs  
*Trypanosome blood trypanosomes in blood SSB 39

* Also in other hosts.

** This stage used to diagnose the infection in a living animal,if none, biopsy or serology may be used.

+ B = Bottle; SSB = Student Slide Box slide #

Quiz Questions:

  1. The owner of a race horse complains that the horse is lethargic and losing weight. The horse just entered this country from Africa a few months ago.
    1. During a CBC the parasite below was found.
    2. Identify the parasite to genus. How did the horse acquire the parasite?

Click here for the answer:

 

 


Copyright © 2006 - University of Pennsylvania School of Veterinary Medicine, All rights reserved.
Faculty: Dr. Thomas Nolan
Students: Molly Church V'09, Diana Knight V'08, Douglas Gilson V'05, Chris Dykhouse V'04, Kimberly Mah V'00

Comments or Questions contact Dr. Tom Nolan at: