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Animal Health

Animal Health. Parasites Their Life Cycles and Classification. Infectious Agents Causing Disease can be divided into Three General Groups:. Bacteria Viruses Parasites. Bacteria . Simple plant life Microscopic Can be Pathogenic and beneficial Live outside of host

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Animal Health

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  1. Animal Health Parasites Their Life Cycles and Classification

  2. Infectious AgentsCausing Diseasecan be divided intoThree General Groups: Bacteria Viruses Parasites

  3. Bacteria • Simple plant life • Microscopic • Can be Pathogenic and beneficial • Live outside of host • Sensitive to antibiotics

  4. Viruses • Are Ultra-microscopic • Live in tissue of host cells • Are resistant to antibiotics • highly contagious

  5. Parasites • Live in, on, or at the expense of the host. • Infections develop slowly • Difficult to eradicate completely • Animals do not develop resistance • Animals may not show symptoms • Host-specific • Include fungi, protozoa, arthropods, and helminths Bot fly common horse parasite

  6. Cause tissue damage Absorb nutrients Suck blood and lymph Obstruct passages Causes growths General irritation Secondary infections Cause serious economic damage The Parasites in this Group

  7. Non-infectious AgentsThat Cause Disease • Chemical and poisons • Poor Nutrition • Injuries • Physical stress from breeding, conception, lactation, and birth • Any other stress or trauma that weakens the animal or its immune system to secondary infections

  8. Nutritional Defects Result from unbalanced diets Physiological Defects Improper functioning of body parts Morphological Defects Physical disabilities Pathogenic Organisms Tiny living things capable of causing disease Causes Of Disease

  9. Life Cycle of Tapeworm in a Sheep

  10. Ascarids

  11. Strongyles

  12. Beef and Pork Tapeworms

  13. The Life Cycle of FliesOccurs in Four Stages

  14. Lice

  15. Ticks Tick infested horse

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