How long should meat be steamed for? I am told it's better to steam meat (over boiling) so that all the dangerous bacteria and parasites are killed but too many nutrients aren't lost in the process.

So how does one figure out how long to steam meat? (So that it doesn't get overcooked, but is safe and nutritious to eat.)



EDITED out the part that said it's for the dog, as the context is unnecessary here (as suggested by @rfusca).
There are charts for when bacteria and parasites die. You will just have to check the internal temperature of the meat with a thermometer. Once it has reached the minimal temperature which makes you feel safe, you can remove it from the heat. It doesn't matter if you are steaming or using any other method. 

This is a safety-oriented chart from Jeff Potter's book Cooking for Geeks. 



And this is a detailed protein chart from McGee's On food and cooking