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Helminthol."],"published-print":{"date-parts":[[2020]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The efficacy of eight essential oils (EOs) (\n                    <jats:italic>Solidago canadensis<\/jats:italic>\n                    ,\n                    <jats:italic>Eucalyptus globulus<\/jats:italic>\n                    ,\n                    <jats:italic>Pelargonium asperum<\/jats:italic>\n                    ,\n                    <jats:italic>Ocimum basilicum<\/jats:italic>\n                    ,\n                    <jats:italic>Thymus vulgaris<\/jats:italic>\n                    ,\n                    <jats:italic>Mentha piperita<\/jats:italic>\n                    ,\n                    <jats:italic>Cymbopogon citratus<\/jats:italic>\n                    and\n                    <jats:italic>Cymbopogon martinii<\/jats:italic>\n                    ) against gastrointestinal nematodes (GINs) was evaluated using eggs collected from naturally infected cattle and cultured infective larvae (L\n                    <jats:sub>3<\/jats:sub>\n                    ). The larvae species cultured from the faecal samples and subjected to two\n                    <jats:italic>in vitro<\/jats:italic>\n                    tests were\n                    <jats:italic>Haemonchus<\/jats:italic>\n                    spp. (55.5%),\n                    <jats:italic>Trichostrongylus<\/jats:italic>\n                    spp. (28.0%),\n                    <jats:italic>Cooperia<\/jats:italic>\n                    spp. (15.0%) and\n                    <jats:italic>Oesophagostomum<\/jats:italic>\n                    spp. (1.5%). The genus of EO\n                    <jats:italic>Cymbopogon<\/jats:italic>\n                    (\n                    <jats:italic>C. citratus<\/jats:italic>\n                    and\n                    <jats:italic>C. martinii<\/jats:italic>\n                    ) showed the highest anthelmintic activity at the dose of 8.75 mg\/ml, for the egg hatch, the larval migration and mortality assays. All of the EOs tested reduced egg hatching to rates &lt;19.0%, compared to the controls (water and water + Tween 20) that had rates &gt;92.0%.\n                    <jats:italic>Cymbopogon citratus<\/jats:italic>\n                    and\n                    <jats:italic>C. martinii<\/jats:italic>\n                    treatments resulted in 11.6 and 8.1% egg hatch, had the lowest migration of larvae through sieves, 60.5 and 54.9%, and the highest mortality rates, 63.3 and 56.3%, respectively. Dose\u2013response tests showed that EO from\n                    <jats:italic>C. citratus<\/jats:italic>\n                    had the lowest larval LC\n                    <jats:sub>50<\/jats:sub>\n                    and migration inhibition concentration (IC\n                    <jats:sub>50<\/jats:sub>\n                    ) values of 3.89 and 7.19 mg\/ml, respectively, compared to two other EOs (\n                    <jats:italic>C. martinii<\/jats:italic>\n                    and\n                    <jats:italic>O. basilicum<\/jats:italic>\n                    ). The results suggest that EOs from the genus\n                    <jats:italic>Cymbopogon<\/jats:italic>\n                    can be interesting candidates for nematode control in cattle, although it may prove challenging to deliver concentrations to the gastrointestinal tract sufficient to effectively manage GINs.\n                  <\/jats:p>","DOI":"10.1017\/s0022149x19001081","type":"journal-article","created":{"date-parts":[[2019,12,17]],"date-time":"2019-12-17T04:09:41Z","timestamp":1576555781000},"source":"Crossref","is-referenced-by-count":9,"title":["Effect of essential oils on cattle gastrointestinal nematodes assessed by egg hatch, larval migration and mortality testing"],"prefix":"10.1017","volume":"94","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9163-3801","authenticated-orcid":false,"given":"S.","family":"Saha","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1638-6721","authenticated-orcid":false,"given":"S.","family":"Lachance","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2019,12,17]]},"reference":[{"key":"S0022149X19001081_ref32","doi-asserted-by":"publisher","DOI":"10.4141\/cjas-2014-169"},{"key":"S0022149X19001081_ref31","unstructured":"Scott H (2017) Epidemiology of gastrointestinal nematodes in Canadian breeding-age diary heifers. 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