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Life cycle of T. canis. T. canis is an 8 to 18 cm long nematode that parasitizes (lives as a parasite) in the small intestine. There, the adult females release approximately 85 μm large unfurrowed eggs, whose shell is thick and rough (golf ball-like) and which are released into the outside world via the feces.
The life cycle of Trichuris vulpis begins with the adult whipworms living in the large intestines of dogs. T. vulpis lay many eggs in the large intestine and are released in the feces into the outside environment. When eggs are released into the outside environment, these unembryonated eggs are able to form embryos in the soil in about 2–4 ...
Dioctophyme renale, commonly referred to as the giant kidney worm, [1] [2] [3] is a parasitic nematode (roundworm) whose mature form is found in the kidneys of mammals. D. renale is distributed worldwide, but is less common in Africa and Oceania. [4] It affects fish-eating mammals, particularly mink [1] and dogs. [4]
The microfilaria (plural microfilariae, sometimes abbreviated mf) is an early stage in the life cycle of certain parasitic nematodes in the family Onchocercidae. [1] In these species, the adults live in a tissue or the circulatory system of vertebrates (the "definitive hosts"). They release microfilariae into the bloodstream of the vertebrate host.
The life cycle of T. leonina is fairly simple. Eggs are ingested and hatch in the small intestine. The juveniles then penetrate the mucosal lining of the small intestine. After growth and molt, they return to the intestinal lumen and mature. The adult female worm lays eggs which are passed in the feces of the animal. The eggs become infective ...
The eggs of T. canis are shed in the scat of an infected dog or puppy; environmental contamination with the eggs is considered the main source of human toxocariasis Life cycle (Toxocara canis) Eggs are deposited in feces of dogs, becoming infectious after 2–4 weeks. [8]
In dogs and cats, eggs of Capillaria plica are released in the urine of the mammalian definitive host. First stage larvae (L1) develop within the eggshell in 30–36 days. When eaten by the intermediate host-- earthworms of the genera Lumbricus or Dendrobaena—the L1 larvae hatch in the earthworm's intestine.
The resultant disease is called alveolar echinococcosis, and is caused by ingesting the eggs of E. multilocularis. The parasite is commonly maintained in a wildlife life cycle involving two mammalian hosts. Wild canids, dogs, and less commonly cats act as definitive hosts, harbouring the adult stage of the tape worm. Voles are the intermediate ...