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First season grazing stock were subjected to significant challenge from\n                    <jats:italic>Ostertagia ostertagi<\/jats:italic>\n                    nematodes as reflected in serum pepsinogen concentrations, which rose markedly in the second half of the grazing season. In addition, plasma albumin concentrations decreased and faecal egg counts (FEC) increased moderately, indicating exposure to both\n                    <jats:italic>O ostertagi<\/jats:italic>\n                    and probably\n                    <jats:italic>Cooperia oncophora<\/jats:italic>\n                    . Second season grazing animals had a peak FEC early in the grazing period, suggestive of a potential carry\u2010over of\n                    <jats:italic>Ostertagia<\/jats:italic>\n                    species infection (\u2018Type 2\u2019) during housing. All classes of cattle showed evidence of fluke (\n                    <jats:italic>Fasciola hepatica<\/jats:italic>\n                    ) infection. Adult cow exposure to\n                    <jats:italic>O ostertagi<\/jats:italic>\n                    and fluke was estimated via the use of ELISA testing to detect antibodies to\n                    <jats:italic>O ostertagi<\/jats:italic>\n                    and\n                    <jats:italic>F hepatica<\/jats:italic>\n                    and the high levels detected suggested a significant exposure response. Despite low stocking densities and sympathetic grazing management, there was a significant challenge to all grazing stock from gastrointestinal nematodes and liver fluke.\n                  <\/jats:p>","DOI":"10.1136\/vr.d5021","type":"journal-article","created":{"date-parts":[[2011,9,10]],"date-time":"2011-09-10T01:41:28Z","timestamp":1315618888000},"page":"524-524","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":12,"title":["Use of diagnostic markers to monitor fasciolosis and gastrointestinal nematodes on an organic dairy farm"],"prefix":"10.1002","volume":"169","author":[{"given":"K. 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