What type of life cycle does Ascaris suum generally have in pigs?
Correct answer: A. A direct life cycle without an intermediate host
- A. A direct life cycle without an intermediate host
- B. An indirect life cycle requiring a snail
- C. A vector-borne cycle requiring a tick
- D. A cycle requiring a fish intermediate host
Explanation
Ascaris suum has a direct life cycle, although its eggs must embryonate in the environment before becoming infective. No arthropod, snail, or fish intermediate host is required.
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About Veterinary Parasitology
Covers protozoa, helminths and arthropods that infect domestic animals, including their morphology, life cycles, hosts, transmission and clinical effects. Questions connect parasite identification with diagnosis, prevention and treatment, and distinguish endoparasites from ectoparasites and definitive hosts from intermediate hosts.
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