Upgrade to remove ads
Trichostrongylus axei (Strongyles continued)
Terms in this set (16)
What is the scientific name for the Hairworm?
Where does Trichostrongylus axei develop?
The small intestine and stomach
Where are Trichostrongylus axei parasites located within the system?
Parasites are located in the lumen of glands
What animals are infected by Trichostrongylus axei?
Equines, porcines, and ruminants
Is implementing mixed species grazing a good management technique to prevent against Trichostrongylus axei infection?
No, because it can infect multiple species so this wouldn't be wise
What is the distribution for Trichostrongylus axei?
What is the structure for Trichostrongylus axei adults, both male and females?
Males are 3-4mm, females are 4-5mm
Small mouth cavity
Males have a copulatory bursa with spicules
What is the structure for Trichostrongylus axei eggs?
Eggs are thin-walled and morulated (multiple little cells inside)
What is the life cycle for Trichostrongylus axei?
Unembryonated eggs pass in feces
eggs embryonate and hatch
they develop from larva 1-L2-L3 in the pasture
L3 migrate onto grass blades and are ingested
Enter wall of stomach and SI and develop to L4
Enter lumen and develop to L5
Adults present in gastric glands
What are the physical effects caused by Trichostrongylus axei infection?
Early lesions typical of catarrhal gastritis (with hyperemia and necrosis)
Lesions may develop into circumscribed raised plaques
What is hyperemia? What is it's relevance to parasite infection?
Increased mucus production.
Hyperemia brings blood to the area since it's reacting to the infection. Blood brings antigens but also brings nutrients for the parasite.
What are some side effects of Trichostrongylus axei infection?
Loss of appetite
Loss of condition
Alternating diarrhea and constipation
What disease caused by Trichostrongylus axei infection is described as damage to the glandular portion of the stomach, causing leakage of fluids since the protection barrier is no longer intact? Ions and proteins also follow the leakage which are essential to homeostasis so now there is an imbalance.
-must be distinguished form habroemiasis
Hyperplastic gastritis is most often seen in horses in close proximity to ________.
How would you diagnose Trichostrongylus axei infection?
Characteristic eggs in feces (but they look like strongyles so you must gain history, previous animals lost, etc)
-eggs embryonate quickly so we must have fresh feces for running fecals to be most accurate
Clinical signs as describes
Gross and microscopic lesions
How would you treat Trichostrongylus axei infection?
Periodic treatments with effective anthelmintics(Ivermectin/moxidectin)
Prohibit mixed grazing with ruminants
THIS SET IS OFTEN IN FOLDERS WITH...
Ruminant Parasites- Blagburn
Parasit Exam 2 set
Parasitology Introduction and Small Animal Ascarids
YOU MIGHT ALSO LIKE...
Terms used to describe infections and infectious d…
Ex4 - 5. Nematodes
Terms used to define infections
Diseases of the Newborn 3-A, 3-B TORCH infections
OTHER SETS BY THIS CREATOR
Lab 2 REVIEW-DOES NOT INCLUDE TARSUS OR…
Normal Cardiac Radiology REVIEW
Intro to Thorax Radiology REVIEW
Intro to Equine Radiology Pts 1 and 2