External

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External Internal Parasites

• Jake Everhart
• May 16, 2001

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Symptoms of Parasitic Infestation

• Parasites to the stomach and intestines cause
• Anemia
• Scouring
• Depression
• Death

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Description of Parasitic Infestation

• Roundworms
• Found in the digestive system
• Most important parasites from an economic
  standpoint
• Mostly in stomach and intestines

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Stomach Worm

• Several species of stomach worm
• Twisted stomach worms and brown stomach worms are
  the most important.
• Found in all classes of livestock
• Most common in cattle, sheep and horses.
• Penetrates the stomach lining
• Causes severe damage

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Calf Scours

• Diarrhea
• Two main forms
• Hypersecretion
• Malabsorption
• Result of Diarrhea
• Dehydration
• Dryed out mouth

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Strongyles

• Several species
• Attack all species
• Greater affect on young
• Blood sucking parasites that attach to the lining
  of the intestines

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Ascarids

• Parasites of cattle, sheep, horses and hogs
• Affects young mostly
• The larvae burrow into the wall of the intestines
  and migrate through the liver, heart, and finally
  the lungs

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Description of external parasites

• Mites and mange
• Mites are a live parasite
• Mange is a live fungus

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