 Lifecycle: Eggs
are passed in manure and become infective larvae in the grass. While
grazing, the horse swallows the larvae, which hatch and burrow into
the walls of the intestine. From there, they are carried by the bloodstream
into the liver and lungs. The horse coughs up the larvae and swallows
them again. Larvae mature into egg-laying adults in the intestine.
How It Gets Into Your Horse: Ascarid larvae are swallowed as your
horse eats infected grass.
Dangers If Left Untreated: Ascarids are especially
dangerous to foals aged 6 months or younger. Severe infection
in horses this young can build up quickly and lead to liver
and lung damage, poor growth and even death. Larvae in
the bloodstream can cause coughing, fever, pneumonia, bleeding
lungs and respiratory infections. In the adult stage, ascarids
live in the small intestine where they can cause colic,
blockage, ruptured gut and death.
ASCARIDS/ROUNDWORMS:
Species & Stages |
| |
Parascaris
equorum - Adult |
Parascaris
equorum - L3 Larvae |
Parascaris
equorum - L4 Larvae |
fenbendazole |
*** |
|
|
ivermectin |
|
|
|
moxidectin |
|
|
|
oxfendazole |
|
|
|
oxibendazole |
|
|
|
pyrantel
pamoate |
|
|
|
pyrantel
tartrate- daily |
|
|
|
| pyrantel
tartrate - single |
|
|
|
***
requires more than single syringe for 1,000 pound horse
Based
on registered label claims and FOI summaries
for each product on file with the FDA; single-dose
application. |
|
