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Table 3 Ergot alkaloid in herbage from Ireland (unpublished reports from the Irish Equine Centre, samples were submitted to either the veterinary diagnostic laboratory, Iowa State University, USA or the veterinary medicine diagnostic laboratory, University of Missouri Veterinary Medicine, USA, for determination of ergovaline by HPLC)

From: Ergot alkaloid intoxication in perennial ryegrass (Lolium perenne): an emerging animal health concern in Ireland?

Plant samples Date, number Ergovaline concentration (ppb) Notes
Herbage samples from perennial ryegrass (Lolium perenne)-rich pastures April 2007, n = 39 (including 5 pooled samples) 10 - 210 (for 17 samples, all other samples were below the limit of detection) Collected from a cattle farm in Co. Kilkenny, with long-term problems of poor performance, and from the wider area at two distinct time points as part of a trace element survey [40]
September 2007, n = 25 (including 5 pooled samples) 20 - 75 (for 8 samples, all other samples were below the limit of detection)
Herbage May-October 2010, grass (n = 12) and haylage (n = 3) <25 - 300 Collected on 13 stud farms in counties Kildare, Kilkenny and Cork where veterinary surgeons reported high incidences of infertility, endometrial oedema, red bag presentations, post partum hemorrhage in mares, rotaviruses outbreaks in 2 to 3 month old foals at grass, and distal leg oedema in yearlings. Some conditions were reported to be responsive to changes in herbage or topping of ergotised seed heads
Perennial ryegrass seed May-June 2010, n = 8 <25 - 760 Seed from commercial suppliers
Perennial ryegrass/clover seed mixes May-June 2010, n = 3 <25, 100 and 1420
Fescue grass seed mix May-June 2010, n = 1 900
Timothy grass seed May-June 2010, n = 2 <25