SYDNEY (AFP) - A giant crocodile believed to have eaten an Australian holidaymaker will spend the rest of its life on a farm, breeding more crocodiles, an official said Thursday. Human remains thought to be those of Arthur Booker, 62, who disappeared last month while holidaying with his wife in north Queensland, have been discovered in the stomach of a 4.5-metre crocodile captured in the area. A spokesman for the state's Environmental Protection Agency said that because of the reptile's size it was a protected animal that could not be killed. It would also not be released and under Queensland state law it cannot be displayed in a zoo or wildlife facility with any sign indicating it had eaten somebody, so a breeding programme was the only alternative. "Any crocodile four metres or over is under the conservation plan an iconic crocodile, so it needs to go into a facility where it can be used in a way that benefits crocodile conservation," Michael Devery told national radio. Booker disappeared on September 30 after he went to check crab pots in a river near Cooktown, in the so-called "Cape Crocodile" region of far north Queensland.