THE world's oldest sheep - Lucky from Lake Bolac - has died.After clocking up an impressive 23 years, six months and 28 days, the Polwarth-Dorchester ewe passed away on Monday morning."For the last fortnight she was not well," owner Delrae Westgarth said."The heat was not good for her ? when we had that really hot week it didn't do her good."In order to help Lucky keep her cool, Mrs Westgarth resorted to putting air-conditioners in Lucky's shed."She loved that, she had her face up to it," she said."But she wasn't eating or drinking (because she was unwell). The vet said she was living on her fat."Lucky's passing has saddened the family and the ewe was buried on Monday under a nectarine tree."She was part of the family," Mrs Westgarth said."I've let the grandkids know, they would have been a bit upset."It's sad, but I'm relieved in one respect. She couldn't walk around and she had no teeth left. Her hearing and her eyesight was still good though."Mrs Westgarth put Lucky's longevity - she was about 184 in sheep years - down to the "special treatment" she received. "She was my pet," she said."Frank wanted to get rid of her for years, but I said 'no - she was born here, she'll die here'."Mrs Westgarth and her husband Frank "went through a lot of rigmarole" in 2007 when Lucky was certified by the Guinness World Records people as the oldest living sheep."There was a lot of paperwork and a lot of interviews," Mrs Westgarth said.A copy of the Guinness World Record certificate is housed at the Lake Bolac Visitor Information Centre, but Mrs Westgarth said she doubts the Ararat Rural City Council will put up a memorial."The shire won't do anything - they don't care about Lake Bolac," she said.