Cicuta virosa (cowbane). A member of the plant family UMBELLIFERAE. Perennial herbaoeous plant growing in damp areas. Tuberous white, fleshy rootstock with small fibrous roots growing off it. Hollow ridged, Segmented stem with feathery, divided leaves and toothed margins (resemble celery leaves and redolent of parsley). Flowers are dense, compact, white inflorescences.


[affected.gif] Animals most affected
Cattle, horses.


[etiology.gif] Etiology
Ingestion of tubers exposed during draining and ditching works, and clearing of wetlands.


[toxic.gif] Toxicity
Contains cicutoxin, a convulsive toxin related to oenanthotoxin and found principally in the rootstock. Other toxins include the volatile alkaloid, cicutine. Drying of the plant does not reduce its overall toxicity.

Oral doses:
LD  
 
cattle several tubers

 


[clinical.gif] Clinical features
Lethal syndrome

Acute syndrome


[lesions.gif] Lesions
Non-specific and of little significance.


[treatm~1.gif] Treatment
No antidote. Symptomatic care, which may prove to be problematic:



[labinv~1.gif] Laboratory investigations
Contents of the stomach or rumen to identify the roots.