Worm eggs that have passed from the sheep in dung hatch and develop through first (L1) and second (L2) larval stages to become infective larvae (L3).
What is the major difference between the life cycles of a tapeworm and a roundworm?
Cattle and other animals can be both the definitive hosts for roundworms, tapeworms and fluke, and intermediate hosts for some larval tapeworms. Roundworms of the digestive tract usually have direct life cycles whereas tapeworms and flukes have indirect life cycles.
What is the difference between roundworms and tapeworms?
Roundworms belong to the phylum Nematoda and tapeworms belong to the class Cestoda under the phylum Platyhelminthes. The main difference between roundworms and tapeworm is that roundworm has a cylindrical body tapered to a fine point at each end whereas tapeworm has a dorso-ventrally flattened, tape-like body.
What is the life cycle of a tapeworm?
All cestodes cycle through 3 stages—eggs, larvae, and adults. Adults inhabit the intestines of definitive, or final, hosts, which are mammalian carnivores, including humans. Several of the adult tapeworms that infect humans are named after their main intermediate host (the fish, beef, and pork tapeworms).
What is the life cycle of a roundworm?
The roundworm lifecycle The incubation period for roundworm is around 4-6 weeks, meaning it can be over a month between ingesting the roundworm and them passing eggs in their stools which may infect other animals. Adult worms lay eggs in the dog's small intestine. Eggs are passed then passed in the dog's feces.
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