The official who oversees Maine’s meat inspection program denied Saturday that the recall of 25,000 pounds of beef by a Greene slaughterhouse was because of a paperwork problem, saying it was due instead to improper handling of the meat. Ellis Additon, director of the Bureau of Agriculture, Food and Rural Resources, said the recalled beef posed a very low health risk to the public because there was no sign that the beef slaughtered by Bubier Meats and sold between November and August was infected by mad cow disease.