Recently, six Thai elephants gave a big trunks-up to the first packaged food substituted for the rapidly disappearing plants they are used to eat, said a zoo official in Bangkok. "The elephants at Bangkok's Dusit zoo all ate with gusto when fed for several months with chewable tablets made of concentrated sugar, cane, corn, molasses, vitamins and mineral,' said Alongkorn Mahannop, the zoo's director. "The half-kilogram, inch-long tablets will be tested in other zoos and the country's northern jungles,' said Alongkorn.