Literaturdatenbank
Literaturdatenbank |
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Fielden, L. J., Rechav, Y., & Bryson, N. R. (1992). Acquired immunity to larvae of amblyomma marmoreum and a.hebraeum by tortoises, guinea-pigs and guinea-fowl. Medical and veterinary entomology, 6(3), 251–254.
Added by: Admin (23 Aug 2008 15:32:57 UTC) |
| Resource type: Journal Article BibTeX citation key: Fielden1992 View all bibliographic details  |
Categories: General Keywords: Geochelone, Parasiten = parasites, Schildkröten = turtles + tortoises, Stigmochelys, Stigmochelys pardalis, Testudinidae, Veterinärmedizin = veterinary medicine Creators: Bryson, Fielden, Rechav Collection: Medical and veterinary entomology |
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| Abstract |
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Testudinidae Geochelone pardalis A study of acquired resistance in guinea-pigs, guinea-fowl and tortoises to larvae of the ticks Amblyomma hebraeum Koch and A.marmoreum Koch (Acari: Ixodidae) showed that repeated infestations of the laboratory host resulted in a 29.3-49.4% reduction respectively in weight of engorged larvae. No resistance was induced in guinea-fowl, the natural host for larvae of both species. A small decline in the mean weight of engorged larvae was observed for both species of ticks after three successive infestations on tortoises. The reduction in weight was more pronounced in A.hebraeum (14.5%) which does not naturally feed on tortoises than for A.marmoreum (8.4%), a common tick on this host. The occurrence of acquired resistance in natural tick host relationships as opposed to unnatural tick host relationships is discussed.
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