The guard dog, called Bobi, died over the weekend in a veterinary hospital, Leonel Costa told The Associated Press.
Bobi lived on a farm in the villageof Conqueiros in Portugal with Costa and four cats. He was born on May 11, 1992, when his owner was just 8 years old.
In an interview earlier this year, Costa told AP that Bobi’s secret to a long life was good food, fresh air and lots of love.
Bobi poses for a photo with his owner Leonel Costa and his Guinness World Record certificates for the oldest dog, at their home in Conqueiros, central Portugal. Photo / AP
“Bobi eats what we eat,” said Costa. What’s more, Bobi had never been put on a leash.
Bobi claimed the Guinness World Record from Bluey, an Australian cattle dog, which died in 1939 aged 29 and had held the record for almost a century.
Officials at Guinness World Records said they were “saddened to learn of the death of Bobi, the world’s oldest dog ever”. In a statement on their website, they said Bobi lived to be 31 years and 165 days old and died on Saturday.
Bobi was a purebred Rafeiro do Alentejo, a breed of Portuguese dog that has an average life expectancy of some 10 to 14 years.