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Managing Internal & External Parasites in Livestock

Learn how internal and external parasites affect livestock, causing symptoms like anemia, scouring, and depression. Understand the economic impact of roundworms and strategies to combat stomach worms. Discover the dangers of calf scours and the threat of strongyles. Identify the effects of ascarids on young animals and how mites and mange can harm livestock. Stay informed to protect your animals' health.

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Managing Internal & External Parasites in Livestock

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  1. External & Internal Parasites Jake Everhart May 16, 2001 Modified by Georgia Agricultural Education Curriculum Office June 2002

  2. Symptoms of Parasitic Infestation • Parasites to the stomach and intestines cause: • Anemia • Scouring • Depression • Death

  3. Description of Parasitic Infestation • Roundworms: • Found in the digestive system • Most important parasites from an economic standpoint • Mostly in stomach and intestines

  4. 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

  5. Calf Scours • Diarrhea • Two main forms • Hypersecretion • Malabsorption • Result of Diarrhea • Dehydration • Dryed out mouth

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

  7. 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

  8. Description of external parasites • Mites and mange • Mites are a live parasite • Mange is a live fungus

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