Flashcards in Equine Parasites Deck (17)
What is the aim of a parasite control strategy?
To reduce transmission of the parasite thus preventing high levels of parasite infection, therefore reducing the incidence of disease
Which helminths can infect horses?
-Strongylus spp (eg Strongylus vulgaris)
-Oxyuris equi (pinworm)
-Anoplocephala perfoliata (tapeworm)
What % of horses are responsible for the majority of cyathostomin eggs in a group?
20% if animals are responsible for shedding 80% of eggs
Parascaris equorum typically affects which age of horse?
Give some clinical signs of Parascaris equorum
-Unthriftiness, resp signs
-Impaction -> SI rupture
How would you diagnose Parascaris equorum?
Spherical, thick-shelled eggs in faeces
How can you control pinworm (oxyuris equi)?
-Washing of peri-anal region
-Environment requires power-cleaning
How do you diagnose oxyuris equi?
-Adults in faeces
-Eggs in peri-anal region
How do you diagnose tapeworms?
-FEC- centrifugation flotation
-EquiSal (saliva-based test using same antigen as ELISA)
How can you practice good pasture management?
-Picking up faeces (twice weekly)
-Co-grazing with ruminants
What is ERP?
Egg reappearance period (affects interval of treatment)
Parascaris equorum is resistant to which anthelmintic?
What is the difference between interval, strategic and targeted dosing?
-Interval: treat at regular intervals based on egg reappearance period
-Strategic: treat specifically based on epidemiology
-Targeted: treat at specific times based on epidemiology; all horses have FEC +/- tapeworm ELISA performed prior to dosing
Which drugs can you use to treat small strongyles?
Adulticides: Pyrantel, ivermectin, moxidectin
Which drugs can you use to treat large strongyles?
Adulticides: benzimidazoles, pyrantel, Ivermectin, moxidectin
Larvicidal: ivermectin, moxidectin
Which drugs can you use to treat Parascaris equorum?
Benzimidazoles, moxidectin, Pyrantel