The passage that explicitly supports the statement that huskies in the Klondike were often mistreated by their owners is:
"They may be beaten into submission, but that will not prevent them still snarling their hatred. They may be starved into apparent docility, and then die, suddenly, with teeth locked fast in a brother's throat, torn to pieces by their comrades."
This passage highlights the cruel treatment of the dogs, indicating that they may be physically abused and starved by their owners, leading to fatal consequences.