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Host age and the growth and fecundity of Hymenolepis diminuta in the rat

  • R. J. Quinnell (a1)

Abstract

Five, 20, and 80 cysticercoid infections of Hymenolepis diminuta were established in 1-, 2- and 5-month-old male Wistar rats. Worm numbers, dry weights and egg outputs were determined on day 28 post infection. Worm recovery was found to be independent of cysticercoid dose in 1-month-old rats, but density-dependent in older rats. Density dependence affected both worm dry weight and egg production in all 3 age classes of host studied. However, at the highest dose both dry weight and egg production were significantly decreased in 2- and 5-month-old rats compared with 1-month-old rats. The results cannot be explained solely in terms of competition for a resource, and suggest that immunological mechanisms may have an important role in the “crowding effect”.

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*Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.

References

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Andreassen, J. (1981) Immunity to adult cestodes (Workshop Proceedings, EMOP 3). Parasitology, 82, 153159.
Andreassen, J., Hinsdbo, O. & Hesselberg, C. A. (1974) Immunity to Hymenolepis diminuta in rats: destrobilation and expulsion in primary infections, its suppression by cortisone treatment and increased resistance to secondary infections. In: Proceedings of the 3rd International Congress of Parasitology, Vol. 2, p. 1056. Facta Publication, Vienna.
Andreassen, J. & Hopkins, C. A. (1980) Immunologically mediated rejection of Hymenolepis diminuta by its normal host, the rat. Journal of Parasitology, 66, 898903.
Beaudoin, R. L. (1965) Action of selected antibiotics on Hymenolepis diminuta in the rat host. Journal of Parasitology, 51 (Sec. 2), 34.
Boddington, M. J. & Mettrick, D. F. (1981) Production and reproduction in Hymenolepis diminuta (Platyhelminthes: Cestoda). Canadian Journal of Zoology, 59, 19621972.
Chandler, A. C. (1939) The effects of number and age of worms on development of primary and secondary infections with Hymenolepis diminuta in rats, and an investigation into the true nature of ‘premunition’ in tapeworm infections. American Journal of Hygiene, 29, 105114.
Chappell, L. H. & Pike, A. W. (1976) Loss of Hymenolepis diminuta from the rat. International Journal of Parasitology, 6, 333339.
Choromanski, L. (1980) Humoral and cellular responses in mice and rats infected with Hymenolepis diminuta. Bulletin de l'Academie Polonaise des Sciences, Sciences Biologiques, 28, 707713.
Hager, A. (1941) Effects of dietary modifications of host rats on the tapeworm Hymenolepis diminuta. Iowa State College Journal of Science, 15, 127153.
Hindsbo, O., Andreassen, J. & Hesselberg, C. A. (1975) Immunity to Hymenolepis diminuta in the rat. Norwegian Journal of Zoology, 23, 197.
Hindsbo, O., Andreassen, J. & Ruitenberg, J. (1982) Immunological and histopathological reactions of the rat against the tapeworm Hymenolepis diminuta and the effects of antithymocyte serum. Parasite Immunology, 4, 5976.
Hopkins, C. A. (1980) Immunity and Hymenolepis diminuta. In: Biology of the Tapeworm Hymenolepis diminuta (editor, Arai, H. P.) pp. 551614. Academic Press: New York.
Insler, G. D. & Roberts, L. S. (1980) Developmental physiology of cestodes. XVI. Effects of certain excretory products on incorporation of [3H] thymidine into DNA of Hymenolepis diminuta. Journal of Experimental Zoology, 211, 5561.
Jarrett, E. E. E., Urquart, G. M. & Douthwaite, R. M. (1969) Immunological unresponsiveness to helminth parasites. II. Antibody response and hypersensitivity reaction associated with Nippostrongylus brasiliensis infection in young rats. Experimental Parasitology, 24, 270278.
Keymer, A. E. & Anderson, R. M. (1979) The dynamics of infection of Tribolium confusum by Hymenolepis diminuta: the influence of infective-stage density and spatial distribution. Parasitology, 79, 195207.
Keymer, A. E., Crompton, D. W. T. & Singhvi, A. (1983) Mannose and the ‘crowding effect’ of Hymenolepis in rats. International Journal for Parasitology, 13, 561570.
M.A.F.F. (1977) Manual of Veterinary Parasitological Laboratory Techniques. Technical Bulletin No. 18, H.M.S.O., London.
Nesheim, M. C., Crompton, D. W. T., Arnold, S. & Barnard, D. (1977) Dietary relations between Moniliformis (Acanthocephala) and laboratory rats. Proceedings of the Royal Society of London, B 197, 363383.
Pike, A. W. & Chappell, L. H. (1981) Hymenolepis diminuta: Worm loss and worm weight loss in long-term infections of the rat. Experimental Parasitology, 51, 3541.
Read, C. P. (1951) The ‘crowding effect’ in tapeworm infections. Journal of Parasitology, 37, 174178.
Read, C. P. (1959) The role of carbohydrates in the biology of cestodes. VIII. Some conclusions and hypotheses. Experimental Parasitology, 8, 365382.
Read, C. P. & Rothman, A. H. (1957) The role of carbohydrates in the biology of cestodes. I. The effect of dietary carbohydrate quality on the size of Hymenolepis diminuta. Experimental Parasitology, 6, 17.
Rickard, M. D. (1983) Immunity. In: Biology of the Eucestoda (editors, Arme, C. & Pappas, P. W.) Vol. 2, pp. 539579. Academic Press, London.
Roberts, L. S. (1961) The influence of population density on patterns and physiology of growth in Hymenolepis diminuta (Cestoda: Cyclophyllidea) in the definitive host. Experimental Parasitology, 11, 332371.
Roberts, L. S. (1966) Developmental physiology of cestodes. I. Host dietary carbohydrate and the ‘crowding effect’ in Hymenolepis diminuta. Experimental Parasitology, 18, 305310.
Roberts, L. S. (1980) Development of Hymenolepis diminuta in its definitive host. In: Biology of the Tapeworm Hymenolepis diminuta (editor, Arai, H. P.) pp. 357423. Academic Press, New York.
Wakelin, D. (1986) Genetic and other contraints on resistance to infection with gastrointestinal nematodes. Transactions of the Royal Society of Tropical Medicine and Hygiene, 80, 742747.
Zavras, E. T. & Roberts, L. S. (1984) Developmental physiology of cestodes. XVIII. Characterization of putative crowding factors in Hymenolepis diminuta. Journal of Parasitology, 70, 937944.
Zavras, E. T. & Roberts., L. S. (1985) Developmental physiology of cestodes. XIX. Cyclic nucleotides and the identity of putative crowding factors in Hymenolepis diminuta. Journal of Parasitology, 71, 96105.

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Host age and the growth and fecundity of Hymenolepis diminuta in the rat

  • R. J. Quinnell (a1)

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