{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T05:29:25Z","timestamp":1771046965367,"version":"3.50.1"},"reference-count":12,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2006,11,17]],"date-time":"2006-11-17T00:00:00Z","timestamp":1163721600000},"content-version":"vor","delay-in-days":47,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Annals of the New York Academy of Sciences"],"published-print":{"date-parts":[[2006,10]]},"abstract":"<jats:p><jats:bold><jats:sc>Abstract:\u2002<\/jats:sc><\/jats:bold>  <jats:bold>This investigation was aimed to evaluate the use of an oral bio\u2010preparation containing <jats:italic>Duddingtonia flagrans<\/jats:italic> chlamydospores for the control of sheep gastrointestinal parasitic nematodes under the Mexican cold high plateau conditions. Two groups of gastrointestinal parasitic nematode naturally infected sheep, were randomly selected and located into two free\u2010gastrointestinal nematode larvae paddocks. Group 1 received once a week a supplement containing <jats:italic>D. flagrans<\/jats:italic> chlamydospores mixed with oats and molasses. Group 2 received a similar supplement without any fungal material. After 5 months grazing animals were discarded from the experiment and two groups of free\u2010nematode \u201ctracer\u201d sheep were located into the same paddocks to collect larvae from the contaminated pastures. Animals were slaughtered and necropsied and the nematodes were obtained and counted. A screening of the number of gastrointestinal nematode larvae present on the grass was performed and compared between the two grazing areas. The results showed 56% reduction in the <jats:italic>Ostertagia (Teladorsagia) circumcincta<\/jats:italic> and 94% reduction in the <jats:italic>Nematodirus<\/jats:italic> sp. population of the \u201ctracer\u201d sheep who grazed on the <jats:italic>D. flagrans<\/jats:italic>\u2010treated sheep area, compared to the nematode population in animals grazed on the non\u2010treated area. The results of the number of larvae on the grazing pastures showed a 51.1% reduction for <jats:italic>H. contortus<\/jats:italic>, and 100% for <jats:italic>Cooperia<\/jats:italic> sp. in the area with fungi. In the case of <jats:italic>Trichostrongylus<\/jats:italic> sp. no reduction was observed, when compared to the control group.<\/jats:bold> <\/jats:p>","DOI":"10.1196\/annals.1373.050","type":"journal-article","created":{"date-parts":[[2006,11,30]],"date-time":"2006-11-30T00:48:38Z","timestamp":1164847718000},"page":"355-359","source":"Crossref","is-referenced-by-count":21,"title":["Biological Control of Gastrointestinal Parasitic Nematodes Using <i>Duddingtonia flagrans<\/i> in Sheep under Natural Conditions in Mexico"],"prefix":"10.1111","volume":"1081","author":[{"given":"PEDRO","family":"MENDOZA\u2010DE GIVES","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"CLAUDIA","family":"ZAPATA NIETO","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ENRIQUE","family":"LI\u00c9BANO HERN\u00c1NDEZ","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"MAR\u00cdA EUGENIA","family":"L\u00d3PEZ ARELLANO","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"DAVID HERRERA","family":"RODR\u00cdGUEZ","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ROBERTO GONZ\u00c1LEZ","family":"GARDU\u00d1O","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,11,17]]},"reference":[{"key":"e_1_2_6_2_2","unstructured":"Charleston T.1994.Control of gastrointestinal parasites in beef production systems. 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Degree Thesis. Universidad Ju\u00e1rez Aut\u00f3noma de Tabasco ."},{"key":"e_1_2_6_11_2","unstructured":"Li\u00e9bano Hern\u00e1ndez E.&J.Flores\u2010Crespo.2002.Identificaci\u00f3n morfom\u00e9trica de larvas infectantes de nematodos gastrointestinales y pulmonares en rumiantes dom\u00e9sticos.En: Primer curso de Diagn\u00f3stico y control de las nematodiasis gastrointestinales y pulmonares de los rumiantes. Huamantla Tlaxcala M\u00e9xico 18 \u201019 de Noviembre del 2002. p\u00e1gs1\u201321."},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0020-7519(98)00147-7"},{"key":"e_1_2_6_13_2","unstructured":"SAS.1998. The SAS System for Windows Release 7.00 SAS Institute Inc . Cary NC . 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