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Автор Norozian-Amiri, S. M. B.
Автор Behnke, J. M.
Дата выпуска 1994
dc.description SUMMARYLaboratory bred DSN hamsters were exposed to varying doses of infective larvae of Ancylostoma ceylanicum (orally) or Necator americanus (percutaneously) and were autopsied at times which corresponded to a period immediately before cessation of growth of worms or soon afterwards. A total of 829 (404 male and 425 female) A. ceylanicum and 1582 (781 male and 801 female) N. americanus were measured. At worm burdens of fewer than 100, the length of A. ceylanicum appeared to increase with infection intensity and no evidence was found that growth was retarded under crowded conditions. In an experiment comparing directly low (mean worm burden = 22) and heavy infections (mean worm burden = 180) significant negative associations between both weight and width, and worm burden were detected, but length again increased with worm burden. In contrast, 5 experiments with N. americanus indicated negative relationships between measures of worm size (length, width, wet and dry weight) and worm burden. It was concluded that N. americanus is subject to regulation by density-dependent processes within the host while A. ceylanicum is not sensitive to the same degree.
Формат application.pdf
Издатель Cambridge University Press
Копирайт Copyright © Cambridge University Press 1994
Тема Nematoda
Тема Necator americanus
Тема Ancylostoma ceylanicum
Тема hookworms
Тема crowding
Тема growth
Название Density-dependent regulation of the growth of the hookworms Necator americanus and Ancylostoma ceylanicum
Тип research-article
DOI 10.1017/S0031182000077829
Electronic ISSN 1469-8161
Print ISSN 0031-1820
Журнал Parasitology
Том 109
Первая страница 119
Последняя страница 128
Аффилиация Norozian-Amiri S. M. B.; University of Nottingham
Аффилиация Behnke J. M.; University of Nottingham
Выпуск 1

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