Hyostrongylus

Hyostrongylus

The parasites are responsible for a chronic gastritis in pigs, particularly glits and sows.

Species	Host	Location
Hyostrongylus rubidus	Pig	Stomach

Identification:

Gross:

·         Slender reddish worms 5-8mm in length

Microscopic:

·         A small cephalic vesicle is present

·         spicules which usually have two distal branches

Life Cycle:

o   Similar to Ostertagia

PPP: 3 weeks

Pathogenesis:

·         Similar to ostertagia

Clinical Signs:

o   Inappetence

o   Anemia

o   Loss of condition

Diagnosis:

Ø  Clinical history: Access to permanent pig pasture

Ø  Clinical signs

Ø  Coproscopy: For characteristic eggs

Ø  Fecal culture for larval identification

Treatment:

·         Benzimidazole or Avermectin/milbemycin; also effective against hypobiotic larvae.