Is kangaroo meat safe to eat raw such as kangaroo tartare?
It seems the meat is not farmed at all but entirely "harvested" in the wild
http://www.daff.gov.au/agriculture-food/meat-wool-dairy/ilg/industries/kangaroos. 
So it should be treated as a game meat rather than a farmed one - i.e. best to cook it.

Here's advice from the Department of Primary Industries saying you should never feed raw kangaroo to your dog, so I'd err on the side of caution
http://new.dpi.vic.gov.au/pets/pests-and-diseases/health-care