{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T16:28:25Z","timestamp":1722529705784},"reference-count":41,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2006,6,2]],"date-time":"2006-06-02T00:00:00Z","timestamp":1149206400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2006,9]]},"abstract":"<jats:p>Transmission of<jats:italic>Oesophagostomum dentatum<\/jats:italic>and<jats:italic>Trichuris suis<\/jats:italic>was studied in outdoor reared pigs. Six farrowing paddocks were naturally contaminated in May to mid-June 2001 by experimentally infected seeder pigs. In early July 1 sow farrowed on each paddock and starting at week 3<jats:italic>post-partum<\/jats:italic>(p.p.) the offspring was slaughtered serially every 2 weeks for parasite recovery. Faeces were collected regularly for parasite egg counts and acid-insoluble ash (AIA) content as an indicator of geophagy. Weaning took place at week 7 p.p. by removing the sow. Paddock infection levels were estimated in mid-June (<jats:italic>O. dentatum<\/jats:italic>) and late November (<jats:italic>O. dentatum<\/jats:italic>and<jats:italic>T. suis<\/jats:italic>) using helminth-na\u00efve tracer pigs. Soil and vegetation samples were collected regularly. Despite a high initial contamination by the seeder pigs,<jats:italic>O. dentatum<\/jats:italic>paddock infectivity was negligible to low throughout the raising of the experimental piglets, which had a slow accumulation of nodular worms ending with a mean of 422 worms\/pig at week 19 p.p. As only few eggs developed to infectivity overall<jats:italic>T. suis<\/jats:italic>transmission was minimal. The first<jats:italic>T. suis<\/jats:italic>were recovered at week 11 p.p. and the highest mean burden of 21 worms\/pig was recorded at week 19 p.p. The experimental pigs initially had a high faecal level of AIA although it decreased over time. The results are discussed in relation to the biological characteristics of the 2 parasites and their occurrence in organic pig production.<\/jats:p>","DOI":"10.1017\/s0031182006000382","type":"journal-article","created":{"date-parts":[[2006,6,2]],"date-time":"2006-06-02T07:54:45Z","timestamp":1149234885000},"page":"295-304","source":"Crossref","is-referenced-by-count":7,"title":["<i>Oesophagostomum dentatum<\/i>and<i>Trichuris suis<\/i>infections in pigs born and raised on contaminated paddocks"],"prefix":"10.1017","volume":"133","author":[{"given":"H.","family":"MEJER","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"ROEPSTORFF","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2006,6,2]]},"reference":[{"key":"S0031182006000382_ref002","doi-asserted-by":"publisher","DOI":"10.2307\/3277570"},{"key":"S0031182006000382_ref001","unstructured":"Alicata, J. E. (1935).Early developmental stages of nematodes occuring in swine.U S Department of Agriculture Technical Bulletin 489,1\u201396."},{"key":"S0031182006000382_ref029","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4017(87)90044-6"},{"key":"S0031182006000382_ref010","doi-asserted-by":"crossref","unstructured":"Dangolla, A. , Bj\u00f8rn, H. and Nansen, P. (1994).A study on the transmission of Oesophagostomum dentatum and Hyostrongylus rubidus among outdoor reared pigs in Denmark.Acta Veterinaria Scandinavica 35,409\u2013416.","DOI":"10.1186\/BF03548316"},{"key":"S0031182006000382_ref023","unstructured":"Mejer, H. , Wendt, S. and Thomsen, L. E. (1998).Transmission af helminther hos grise p\u00e5 friland \u2013 betydningen af n\u00e6sering, bel\u00e6gningsgrad, fodersammens\u00e6tning og adf\u00e6rd (Transmission of helminths in outdoor pigs \u2013 the effect of nose-rings, stocking rate, diet composition and behaviour). M.Sc. Thesis, The Royal Veterinary and Agricultural University,Copenhagen, Denmark."},{"key":"S0031182006000382_ref018","unstructured":"Kraglund, H.-O. (1999).Survival, development and dispersal of the free-living stages of Ascaris suum, Oesophagostomum dentatum and Trichuris suis at the pasture. Ph.D. thesis, The Royal Veterinary and Agricultural University,Copenhagen, Denmark."},{"key":"S0031182006000382_ref015","doi-asserted-by":"publisher","DOI":"10.2307\/3274772"},{"key":"S0031182006000382_ref037","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4017(95)00916-7"},{"key":"S0031182006000382_ref028","unstructured":"Powers, K. G. , Todd, A. C. and McNutt, S. H. (1960).Experimental infections of swine with Trichuris suis .American Journal of Veterinary Research 21,262\u2013268."},{"key":"S0031182006000382_ref009","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-4017(02)00080-8"},{"key":"S0031182006000382_ref026","doi-asserted-by":"publisher","DOI":"10.1017\/S0003356100024077"},{"key":"S0031182006000382_ref032","doi-asserted-by":"crossref","unstructured":"Roepstorff, A. and Murrell, K. D. (1997 b).Transmission dynamics of helminth parasites of pigs on continuous pasture: Ascaris suum and Trichuris suis .International Journal for Parasitology 27,563\u2013572.","DOI":"10.1016\/S0020-7519(97)00022-2"},{"key":"S0031182006000382_ref011","unstructured":"DANISH PLANT DIRECTORATE (2005).Vejledning om \u00f8kologisk jordbrugsproduktion (Guidelines for organic agriculture), pp.126."},{"key":"S0031182006000382_ref034","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4017(94)90084-1"},{"key":"S0031182006000382_ref003","unstructured":"Anon. (1971).Kommisionens f\u00f8rste direktiv af 15. juni 1971 om fasts\u00e6ttelse af f\u00e6llesskabs analyse metoder til den officielle kontrol af foderstoffer (71\/250\/E\u00d8F) (The first commission directive from 15 June 1971 concerning official analysis methods for control of feed stuffs). De Europ\u00e6iske F\u00e6llesskabers Tidende nr. L 155\/13 (The European Union news letter number L. 155\/13), 430."},{"key":"S0031182006000382_ref004","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182000046503"},{"key":"S0031182006000382_ref005","doi-asserted-by":"publisher","DOI":"10.2307\/3809405"},{"key":"S0031182006000382_ref007","doi-asserted-by":"crossref","unstructured":"Burden, D. J. and Hammet, N. C. (1979).The development and survival of Trichuris suis ova on pasture plots in the south of England.Research in Veterinary Science 26,66\u201370.","DOI":"10.1016\/S0034-5288(20)30943-7"},{"key":"S0031182006000382_ref008","doi-asserted-by":"publisher","DOI":"10.1136\/vr.121.2.43"},{"key":"S0031182006000382_ref012","doi-asserted-by":"crossref","unstructured":"Goodey, T. (1924).The anatomy of Oesophagostomum dentatum (Rud.) a nematode parasite of the pig, with observations on the structure and biology of the free-living larv\u00e6.Journal of Helminthology 2,1\u201314.","DOI":"10.1017\/S0022149X00002960"},{"key":"S0031182006000382_ref013","doi-asserted-by":"publisher","DOI":"10.2527\/jas1979.4941000x"},{"key":"S0031182006000382_ref014","doi-asserted-by":"crossref","unstructured":"Hale, O. M. , Stewart, T. B. , Marti, O. G. , Wheat, B. E. and McCormick, W. C. (1981).Influence of an experimental infection of nodular worms (Oesophagostomum spp.) on performance of pigs.Journal of Animal Science 52,316\u2013322.","DOI":"10.2527\/jas1981.522316x"},{"key":"S0031182006000382_ref017","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4017(75)90008-4"},{"key":"S0031182006000382_ref019","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182001008514"},{"key":"S0031182006000382_ref021","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182099004503"},{"key":"S0031182006000382_ref022","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182006000394"},{"key":"S0031182006000382_ref024","doi-asserted-by":"crossref","unstructured":"Mejer, H. , Wendt, S. , Thomsen, L. E. , Roepstorff, A. and Hindsbo, O. (2000).Nose-rings and transmission of helminth parasites in outdoor pigs.Acta Veterinaria Scandinavica 41,153\u2013165.","DOI":"10.1186\/BF03549647"},{"key":"S0031182006000382_ref025","doi-asserted-by":"publisher","DOI":"10.1007\/s004360050168"},{"key":"S0031182006000382_ref027","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182001007934"},{"key":"S0031182006000382_ref030","unstructured":"Roepstorff, A. , J\u00f8rgensen, R. J. , Nansen, P. , Henriksen, S. A. , Skovgaard Pedersen, J. and Andreasen, M. (1992).Parasitter hos \u00f8kologiske svin (Parasites in organic swine). Project report, financed by the Danish Ministry of Agriculture. Landsudvalget for svin, Danske slagterier,Copenhagen."},{"key":"S0031182006000382_ref031","doi-asserted-by":"crossref","unstructured":"Roepstorff, A. and Murrell, K. D. (1997 a).Transmission dynamics of helminth parasites of pigs on continuous pasture: Oesophagostomum dentatum and Hyostrongylus rubidus .International Journal for Parasitology 27,553\u2013562.","DOI":"10.1016\/S0020-7519(97)00023-4"},{"key":"S0031182006000382_ref033","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-4017(01)00506-4"},{"key":"S0031182006000382_ref035","unstructured":"Roepstorff, A. and Nansen, P. (1998). The Epidemiology, Diagnosis and Control of Helminth Parasites of Swine .A FAO handbook. FAO,Rome."},{"key":"S0031182006000382_ref038","doi-asserted-by":"publisher","DOI":"10.1016\/0169-4758(89)90269-X"},{"key":"S0031182006000382_ref040","doi-asserted-by":"publisher","DOI":"10.1016\/0035-9203(88)90532-9"},{"key":"S0031182006000382_ref039","doi-asserted-by":"crossref","unstructured":"Talvik, H. , Christensen, C. M. , Joachim, A. , Roepstorff, A. , Bj\u00f8rn, H. and Nansen, P. (1997).Prepatent periods of different Oesophagostomum spp. isolates in experimentally infected pigs.Parasitology Research 83,563\u2013568.","DOI":"10.1007\/s004360050298"},{"key":"S0031182006000382_ref041","doi-asserted-by":"publisher","DOI":"10.1016\/0035-9203(91)90172-U"},{"key":"S0031182006000382_ref006","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4017(76)90090-X"},{"key":"S0031182006000382_ref036","doi-asserted-by":"crossref","unstructured":"Rose, J. H. and Small, A. J. (1981).The relationship between pasture herbage and the development and survival of the free-living stages of Oesophagostomum dentatum .Journal of Helminthology 55,109\u2013113.","DOI":"10.1017\/S0022149X00025578"},{"key":"S0031182006000382_ref016","unstructured":"Jensen, T. K. and Svensmark, B. (1996).Trichuriasis hos udend\u00f8rs slagtesvin (Trichuriosis in outdoor fatteners).Veterin\u00e6r Information 2,3\u20137."},{"key":"S0031182006000382_ref020","unstructured":"Larsen, M. N. (1996).\u00c5rstidsvariation i overlevelse og udvikling for de frie larvestadier af 4 svineparasitter p\u00e5 friland (Seasonal variation in survival and development of the free-living stages of 4 pig-parasites under outdoor conditions). M.Sc. thesis, University of Copenhagen and The Royal Veterinary and Agricultural University,Copenhagen, Denmark."}],"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182006000382","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,27]],"date-time":"2021-07-27T23:24:13Z","timestamp":1627428253000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182006000382\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,6,2]]},"references-count":41,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2006,9]]}},"alternative-id":["S0031182006000382"],"URL":"https:\/\/doi.org\/10.1017\/s0031182006000382","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"value":"0031-1820","type":"print"},{"value":"1469-8161","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,6,2]]}}}