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WHY DO WE DEWORM?
*Parasite: Large Strongyles/Blood Worms
Effects: Recurring colic, diarrhea, hepatitis and poor body condition.
Source: From manure; eggs survive winter on pasture. Adult worms live in large intestine.
*Parasite: Small Stronglyes
Effects: Diarrhea, anemia, recurrent colic, and poor body condition, Worms may develop resistance to certain dewormers.
Source: From manure. Eggs survive winter on pasture.
*Parasite: Ascarids/Roundworms
Effects: Primary Damage: impaction/fatal rupture of small intestine. Lung migration can produce respiratory disease; common cause of retarded growth & unthriftiness.
Source: From eggs in manure that survive winter on pasture.
*Parasite: Bots
Effects: Cause unthriftiness and gastritis.
Source: Eggs of bot fly laid in hair => licked by horse => hatch in mouth => create oral ulcers and larvae that attach to stomach lining.
*Parasite: Pinworms
Effects: Excessive tail rubbing, loss of condition, and irritability.
Source: Eggs in manure; eggs die quickly on pasture.
*Parasite: Tapeworms
Effects: Colic, marked digestive disturbances, unthriftiness.
Source: Eggs in manure; pasture mites as intermediate hosts. Worms cluster primarily in large intestine.
*Parasite: Threadworms
Effects: Erode small intestine lining. Produce weight loss, anemia, diarrhea, & lack of appetite.
Source: Passed to foal via mare’s milk; possible contributing factor “foal heat” diarrhea.
*Parasite:Stomach Worms
Effects: Digestive disorders, summer sores, inflammation of stomach wall, & skin ulcers.
Source: Eggs in Manure.
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