Harlequin Haven Great Dane Rescue

Harlequin Haven
Great Dane Rescue

11567 St. Rt. 774
Bethel, Ohio 45106

Open By Appointment Only


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Internal Parasites 

Facts about Parasites:
  • Very difficult for people to get from their pets.
  • Advise routine fecal exam every 6-12 months.
  • Start deworming pups at 2 weeks of age. Then every 2 weeks.
  • Pups can be born with worms or become infected from the bitch at birth.
  • Dogs do NOT have pinworms! People only!


  • The most common parasite of dogs.
  • Also called Ascarids.
  • Long, round, look like spaghetti, often curl up.
  • Seen primarily in young animals. 
  • Puppies can be born with roundworms.
  • Puppies can acquire roundworms from their mothers milk.
  • Roundworm eggs are passed in the feces of dogs.


  • 1/4 the size of the head of a pin.
  • Suck blood causing anemia.
  • Can cause bloody diarrhea.
  • May kill young pups.
  • Hookworm eggs are passed in the feces of dogs.


  • Short, flat segments, look like rice. Owners often see them on their pets rears.
  • Possible to get from eating birds, rabbits, rodents, etc..
  • Requires special type of medication to kill, unavailable over the counter.
  • Must find segments in feces to diagnose; eggs are not usually seen on fecal exam.
  • Transmitted by fleas. You must control fleas to control tapeworms.


  • Cause straining to defecate in dogs. Can see red blood in stool.
  • Treat with panacur, or interceptor (heartworm preventive)
  • Difficult to get rid of in yard. Must pick up stools.
  • Whipworm eggs can live for several months or even years in the soil.
  • Dogs can acquire whipworm through contact with the feces of an infected dog.
  • Very difficult to cure as the dog often returns to an infected environment.
  • Difficult to diagnose. Several fecal examinations may be necessary

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