The Veterinary Record, Vol 117, Issue 19, 497-498
Copyright © 1985 by British Veterinary Association
Onion poisoning of young cattle
J Verhoeff,
R Hajer,
and
TS van den Ingh
Eighty-five cattle (calves and yearlings) were allowed 1000 kg of onions (Allium cepa) a day. Signs of poisoning were observed after five days; 22 animals were affected, one fatally. New illnesses continued to occur for five days after the withdrawal of onions from the diet. Clinical signs included inappetance, tachycardia, staggering and collapse, with jaundiced conjunctivae and haemoglobinuria. Haemolytic anaemia with Heinz bodies in the red cells and leucocytosis were demonstrated.