Zoals Kruimel al schreef...alle uien soorten,prei en knoflook zijn in dezelfde familie.
Ik doe ook kleine hoeveelheid knoflook door de groentemix,maar ik geef geen prei of ui.
Hier nog wat meer:
Onion and garlic poisoning
Onions and garlic are other dangerous food ingredients that cause sickness in dogs, cats and also livestock. Onions and garlic contain the toxic ingredient thiosulphate. Onions are more of a danger.
Pets affected by onion toxicity will develop haemolytic anaemia, where the pet’s red blood cells burst while circulating in its body.
http://www.petalia.com.au/Templates/Sto ... o=257#ct-4
Heinz - Body Anaemia
The recorded cases of Allium poisoning typically involved onion doses exceeding 0.5% of the animal's body weight. A dog weighing 60 pounds would have to ingest a 5-ounce onion or several cloves of garlic to begin the Heinz-body process. Red blood cells regenerate quickly in healthy animals, so the overdose would have to be repeated frequently to cause harm.