PHALARIS, CANARYGRASS, POISONING, IN CATTLE AND SHEEP
 
Description    Canarygrass, PHALARIS spp., tryptamine alkaloids can cause poisonings in cattle and sheep.
 
Species   Bovine, Ovine
 
Signs   Abnormal proprioceptive positioning, Abnormal pupillary response to light, Arrhythmia, Ataxia, Blindness, Bunny hopping, Coma, Cyanosis, Difficulty in prehending or chewing food, Disoriented, Dysmetria, Dysphagia, Dyspnea, Excessive salivation, Excitement, Exercise intolerance, Fever, Forelimb lameness, Forelimb weakness, Generalized lameness or stiffness, Generalized weakness, Hindlimb lameness, Hyperesthesia, Inability to stand, Increased respiratory rate, Mydriasis, Nystagmus, Opisthotonus, Paraparesis, Propulsion, Reluctant to move, Seizures or syncope, Sudden death, Tachycardia, Tetany, Tetraparesis, Trembling, Tremor, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Ventricular fibrillation, flutter, Weight loss
 
References   Finnie J. Neurological diseases of ruminant livestock in Australia. II: toxic disorders and nutritional deficiencies. Aust Vet J 2011;89:247 [Web Reference]
Nicholson SS. Southeastern Plants Toxic to Ruminants. Vet Clin N A Food Anim Pract 2011;27:447 [Web Reference]
Binder EM. Phalaris arundinacea (reed canarygrass) grass staggers in beef cattle. J Vet Diagn Invest 2010;22:802 [Web Reference]
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