{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T09:32:31Z","timestamp":1762075951255},"reference-count":15,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2009,4,6]],"date-time":"2009-04-06T00:00:00Z","timestamp":1238976000000},"content-version":"unspecified","delay-in-days":12545,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[1974,12]]},"abstract":"<jats:p>Young white mice were infected with different doses of eggs or cysticercoids of<jats:italic>Hymenolepis nana<\/jats:italic>and the subsequent faecal egg output was measured over a 3-day period. This was then correlated with worm numbers, determined after killing the hosts. The longest worm in each infection was measured and it was shown that crowding decreased the linear dimensions, number of eggs per proglottis and rate of proglottis production of these worms, but that their shape was not affected.<\/jats:p><jats:p>The relation between total egg output and worm numbers was complex. In both egg-derived and cysticercoid-derived infections the egg production rose to a peak, fell and then levelled off to a constant rate with increasing worm numbers. Cysticercoid-derived worms were larger than egg-derived worms, but produced approximately the same number of eggs per unit of biomass. The differences in the egg output curves for the two types of infection were interpreted as being due to their size difference; this in turn may be a consequence of the host immunological response.<\/jats:p>","DOI":"10.1017\/s0031182000063083","type":"journal-article","created":{"date-parts":[[2009,6,5]],"date-time":"2009-06-05T17:00:32Z","timestamp":1244221232000},"page":"403-415","source":"Crossref","is-referenced-by-count":21,"title":["Population dynamics of<i>Hymenolepis nana<\/i>in mice: fecundity and the \u2018crowding effect\u2019"],"prefix":"10.1017","volume":"69","author":[{"given":"A. M.","family":"Ghazal","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. A.","family":"Avery","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2009,4,6]]},"reference":[{"key":"S0031182000063083_ref015","first-page":"16","article-title":"Egg production by Hymenolepis nana var. fraterna and egg infectivity after passage from mice with light, moderate and heavy worm burdens","volume":"44","author":"Weinmann","year":"1958","journal-title":"Journal of Parasitology"},{"key":"S0031182000063083_ref014","first-page":"74","article-title":"Host\u2013parasite relations of Hymenolepis fraterna in the rat and the white mouse","volume":"18","author":"Shorb","year":"1933","journal-title":"American Journal of Hygiene"},{"key":"S0031182000063083_ref012","doi-asserted-by":"publisher","DOI":"10.1152\/physrev.1963.43.2.263"},{"key":"S0031182000063083_ref010","doi-asserted-by":"publisher","DOI":"10.2307\/3273449"},{"key":"S0031182000063083_ref009","volume-title":"Experiments and Techniques in Parasitology","author":"MacInnis","year":"1970"},{"key":"S0031182000063083_ref008","doi-asserted-by":"publisher","DOI":"10.2307\/3277757"},{"key":"S0031182000063083_ref007","first-page":"414","article-title":"Studies of the life history and host\u2013parasite relations of Hymenolepis fraterna (H. nana, var. fraterna, Stiles) in white mice","volume":"22","author":"Hunninen","year":"1935","journal-title":"American Journal of Hygiene"},{"key":"S0031182000063083_ref006","doi-asserted-by":"publisher","DOI":"10.1111\/j.1749-6632.1963.tb40662.x"},{"key":"S0031182000063083_ref005","doi-asserted-by":"crossref","first-page":"217","DOI":"10.4049\/jimmunol.88.2.217","article-title":"Studies on helminth immunity. IV. Rapid onset of resistance by the white mouse against a challenging infection with eggs of Hymenolepis nana (Cestoda: Hymenolepididae)","volume":"88","author":"Heyneman","year":"1962","journal-title":"Journal of Immunology"},{"key":"S0031182000063083_ref003","first-page":"50","article-title":"A new technique for counting nematode eggs in sheep faeces","volume":"12","author":"Gordon","year":"1939","journal-title":"Journal of the Council for Scientific and Industrial Research"},{"key":"S0031182000063083_ref004","first-page":"127","article-title":"Effects of dietary modifications of host rats on the tapeworm Hymenolepis diminuta","volume":"15","author":"Hager","year":"1941","journal-title":"Iowa State College Journal of Science"},{"key":"S0031182000063083_ref013","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(61)90040-6"},{"key":"S0031182000063083_ref001","unstructured":"Bailey G. N. A. (1972). Energetics of a host\u2013parasite system. Unpublished Ph.D. Thesis, University of Exeter."},{"key":"S0031182000063083_ref002","first-page":"105","article-title":"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","volume":"29","author":"Chandler","year":"1939","journal-title":"American Journal of Hygiene"},{"key":"S0031182000063083_ref011","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(59)90030-X"}],"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182000063083","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,3,14]],"date-time":"2024-03-14T09:23:17Z","timestamp":1710408197000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182000063083\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1974,12]]},"references-count":15,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1974,12]]}},"alternative-id":["S0031182000063083"],"URL":"https:\/\/doi.org\/10.1017\/s0031182000063083","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"value":"0031-1820","type":"print"},{"value":"1469-8161","type":"electronic"}],"subject":[],"published":{"date-parts":[[1974,12]]}}}