Poisonous Plants A-Z
Bracken - Brake - Any of the large course ferns having large fronds with
spore cases on the undersides. Poisoning caused by eating the plant, it
contains an enzyme, which inactivates thiamine (vitamin B1) and causes a
deficiency - symptoms - progressive loss of condition and slow pulse. Later
the animal loses its belly and becomes tucked and hollow in the flanks.
The muscles begin to waste.
Eventually the animal reels as it walks and may have
difficulty in turning. The pulse becomes rapid and week, there is
staggering, unnatural stance and in extreme cases difficulty in getting up
after rest. Severe muscular tremors develop, death is preceded. Treatment -
Urgent veterinary treatment needed.
50-100ml. Thiamine might be administered.