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Studies on Pharyngostomum cordatum (Diesing, 1850). 2. Experimental infections to tadpoles and laboratory animals



Studies on Pharyngostomum cordatum (Diesing, 1850). 2. Experimental infections to tadpoles and laboratory animals



Japanese Journal of Parasitology, 294: 313-318



For experimental infection, R. rugosa tadpoles (36), were put into an aquarium containing cercariae of P. cordatum. The metacercariae were found in 35 of 36 tadpoles 3 days after the infection. According to Wallace (1939) and Uchida, et al. (1977), metacercariae were usually encapsulated in the muscles of naturally-infected frogs. In this experiment most of the metacercariae in tadpoles continued to move about freely, without becoming encapsulated in muscles. Experimental oral infections of freely-moving metacercariae were performed to 2 cats, 4 hamsters, 5 rats and 3 mice. The 2 cats began to expell eggs in their feces 26 days after infection. The adult worms were discovered from the upper half of the intestine of the cats. The other laboratory animals seemed unsuitable hosts for this species.

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Accession: 021813404

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Related references

Pharyngostomum cordatum 2. experimental infections to tadpoles rana rugosa and laboratory animals. Japanese Journal of Parasitology 29(4): 313-318, 1980

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