He gave thanks from the Tamaki family and Doug's immediate family.
"[F]ly brother swift as an eagle..(can do it on the harley too if u want) love forever..Arohanui [sic]."
He is survived by his parents, Duke and Margaret, his wife Katie and their four children, a grandson, brothers Mike and Brian, and sisters Caroline and Tania.
Doug, who has won several tourism awards, owned Tamaki Maori Village in Rotorua alongside his other brother, Mike.
In a statement, Mike said his brother had died surrounded by his whānau, who were shocked by his sudden death.
Doug would be taken to lie at his Mount Maunganui home for the coming few days, before his funeral ceremony on Tuesday, Mike said.
"Details around the venue for the ceremony will be released over the next 24 hours."
Mike had previously confirmed his brother was in a critical but stable condition in Tauranga Hospital after suffering a "significant and unexpected medical event" at his home at Mount Maunganui on Thursday morning.
Hi heart apparently stopped.
"The family would also like to acknowledge all of the messages of aroha and support that have been expressed."
Bishop Brian Tamaki, the leader of Destiny Church, had said in a tweet that he was praying for a "miracle".
"I am heartbroken but prayin[g] w[i]th family [a]nd friends for a miracle to happen for my little brother Douglas on life support. My God is so Good," he wrote.
Rotorua Lakes councillor Tania Tapsell said she had heard Doug was unwell and taken to Tauranga Hospital on Thursday morning.
Rotorua MP Todd McClay said there was a huge amount of support in the community for Tamaki.
McClay said Tamaki was a "very big part" of the Rotorua community - not only in the tourism sector.
Last November Tamaki Maori Village, which has been open for 27 years, won the "Lifetime Achievement Award" at the Golden Backpack Awards.
Along with brother Mike, the pair were also nominated for their service to the tourism industry and representing and educating visitors on NZ indigenous culture.
The business also won the "Best Cultural Experience Award" for the seventh year in a row.
"We have a great team who constantly look for new, revolutionary ways to share our culture, our history and our stories. It's great to be recognised by our customers with this award," Doug told the Rotorua Daily Post at the time.
The Tamaki Maori Village also was a Gold Award Winner 2016 for "Activity of the Year", "Accommodation of the Year" and "Driver's Choice" at the Kiwi Experience Awards.
