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Stomach and Intestine Roundworms 

(Internal Parasite) 


  • Haemonchus (Barber Pole worm, Candy cane Worm)
  • Ostertagia
  • Trichostrongylus


  • Young goats are severely affected by these bloodsucking parasites.


  • Anemia is a prime symptom of stomach and intestine roundworms, along with blood loss and gut damage.
  • You may also detect swelling under the jaw (bottle jaw) or low on the abdomen.
  • Diarrhea may occur but sometimes the goat dies before diarrhea can develop.
  • Weight loss
  • Poor growth
  • A mark decrease in milk production.


  • Goats eat grass with larvae on it and the eggs pass out in feces. The eggs then embryonate and hatch then goes into 1st stage larvae, 2nd stage larvae, 3rd stage larvae infective. After 3rd stage larvae moves up on blade of grass  by way of moisture beads.


  • Your first option should be to contact your veterinarian. (A diagnosis should be made first before treatment begins)
  • Each situation is dependent upon proper diagnosis of the parasite and selection of the medication for that species. (anthelmintic susceptibility testing)
  • Additional components of a treatment plan should include: pasture rotation and FAMACHA training.


  • The best preventives are a routine worming program and minimal fecal contamination of feed and water sources.


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