TALL FESCUE, LOLIUM ARUNDINACEUM, POISONING, TOXICITY, EQUINE
 
Description    Mares grazing Tall Fescue grass LOLIUM ARUNDINACEUM infected with a toxic endophytic fungus can develop dystocia, agalacia, thickened placentas, weak foals, retained placentas, prolonged gestation, and abortion. Yearlings grazing endophyte-infected Tall Fescue had decreased rates of weight gain and horses experimentally fed endophyte-infected Tall Fescue had slowing of recovery from exercise. Equine Fescue Edema has been reported in Australia and New Zealand.
 
Species   Equine
 
Signs   Abortion or weak newborns, Agalactia, Anorexia, Diarrhea, Dullness, Dystocia, Exercise intolerance, Lack of growth or weight gain, Prolonged gestation, Retained placenta, fetal membranes, Skin edema, Sweating
 
References   Finch SC. Further investigation of equine fescue oedema induced by Mediterranean tall fescue (Lolium arundinaceum) infected with selected fungal endophytes (EpichloŽ coenophiala). N Z Vet J 2017;65:322 [Web Reference]
Munday JS. Pathological changes seen in horses in New Zealand grazing Mediterranean tall fescue (Lolium arundinaceum) infected with selected endophytes (EpichloŽ coenophiala) causing equine fescue oedema. N Z Vet J 2017;65:147 [Web Reference]
McCue PM. Hormone Therapy in Clinical Equine Practice. Vet Clin North Am Equine Pract 2016;32:425 [Web Reference]
Pozor M. Equine placenta Ė A clinician`s perspective. Part 2: Abnormalities. Eq Vet Educ 2016;28:396 [Web Reference]
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