Breeding and Culling Many of the mushers breed their own dogs for use in the Iditarod and other sled dog races. Few dogs can become champions, so it is common practice to cull unprofitable dogs.

What are the strongest dog breeds in the world ... endurance and strength each year when taking part in the famed Iditarod ...

“Being able to race the Iditarod and the expense of putting ... Fairbanks in February with a husky — the predominate sled dog breed — prominently featured with the headline, “We don ...