Poisonous plants

Seite 1

Peace lily

Grapes

Onion poisoning dogs + garlic

Common Ragwort:

very common

year 1 plant most toxic as has most concentrated toxin

illegal to have in field

silage contamination

remains poisonous even when dried and stored

if get a taste of ragwort - seek it out preferentially to eat

death within a few days if ingest a lot

jaundice, liver failure and death

no antidotes

removal from pasture is only control method

Bracken:

young plant is most toxic

plant is present all year round

eaten when other pasture is scarce

cause cancer in animals (bladder etc.)

Thiaminase - enzyme that breaks down vitamin B1

Carcinogens - cancer causing

Stop platelet development - can't clot blood

*treatment blood transfusion but rarely used (only in value animals)

The Yew:

yew tree

aril - inside has seed

all parts is poisonous except the aril

seed inside is exceptionally poisonous

nasty effects on heart

foaming at mouth

no antidote

wild deer immune

use activated charcoal to get rid of toxins

Oak:

seasonal problem

oak apples cause the problems - acorns

tannins and gallic acid in the acorn - kidney damage and GI tract issues

stomach discomfort - animal seen to be in distress

rehydrate and use activated charcoal

Onion and Garlic poisoning:

oxidant toxins

concentrated in animals and causes problems

cause oxidative injury to haemaglobin = heinz bodies

Grapes, raisins etc - concentrate toxins (tannins)

Lillies

Mycotoxins - mushrooms/fungi