Brian Whitlock, 26, was also given three years probation and a lifetime ban on owning pets. Judge David St. Pierre told Whitlock: "In life, there are consequences for bad decisions."
The judge gave Whitlock credit for 53 days spent in custody, so he is expected to only serve a further seven days in jail.
After the sentence was announced, some of the dozens of animal rights supporters in the gallery shouted out: "So disgusting," which prompted the judge to threaten to have them removed.
The judge then admonished the people who had threatened Whitlock publicly in the past, saying Whitlock must be able to live without fear of criminal vigilantes who want to avenge the dog's death.
- Read more about the trial
Whitlock pleaded guilty to animal cruelty in April after two-year-old Captain was found in a dumpster, wrapped in a bloody blanket, in July 2012. The dog was emaciated, and had been stabbed, cut and brutally beaten. The dog died a short time later despite the SPCA's attempts to save its life.