Description    Ingestion by ruminants of sprouting acorns, buds, leaves, twigs, and/or seeds of oak (QUERCUS spp.) trees can lead to acute renal failure.
Species   Bovine, Caprine, Ovine
Signs   Abdominal distention, Abnormal lung or pleural sounds, Agalactia, Anorexia, Ascites, Ataxia, Bloat in ruminants, Bloody stools, feces, hematochezia, Chemosis, Cold skin, Colic, Conjunctival, scleral, injection, Conjunctival, scleral, redness, Decreased amount of stools, absent feces, constipation, Dehydration, Diarrhea, Dryness of skin or hair, Dull areas on percussion of chest, thorax, Dullness, Dysmetria, Dyspnea, Epistaxis, Fever, Generalized weakness, Glucosuria, Head, face, ears, jaw, nose, nasal, swelling, Hematuria, Hemoglobinuria or myoglobinuria, Hemorrhage of any body part or clotting failure, Hypothermia, Icterus, Inability to stand, Increased frequency of urination, Increased respiratory rate, Lacrimation, Melena or occult blood in feces, stools, Mucoid nasal discharge, Mucous, mucoid stools, feces, Oliguria or anuria, Pale, Paraparesis, Ping right side, Polydipsia, Polyuria, Prolapsed rectum, Red or brown urine, Rough hair coat, Rumen hypomotility or atony, Skin edema, Sudden death, Tachycardia, Tenesmus, Trembling, Tremor, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Weight loss
References   Cortinovis C. Epidemiology of intoxication of domestic animals by plants in Europe. Vet J 2013;197:163 [Web Reference]
Perez V. Oak leaf (Quercus pyrenaica) poisoning in cattle. Res Vet Sci 2011;91:269 [Web Reference]
Bischoff K. Toxic Plants of the Northeastern United States. Vet Clin N A Food Anim Pract 2011;27:459 [Web Reference]
Nicholson SS. Southeastern Plants Toxic to Ruminants. Vet Clin N A Food Anim Pract 2011;27:447 [Web Reference]
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