The lethal dose for an average size mouse is a 1 time dose of .09 mg of rat poison.
The lethal dose for the average Yorkie (5 lbs) is 6.57 mg for 5 consecutive days. And that is if the dog eats strait rat poison, not what has already been ingested by another animal.
Typically a mouse is going to eat more than the minimum lethal amount, but not that much more. |