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Show Rat Killer With Atomic Bomb Effect Developed By University Of Wisconsin A new rat and mouse killer hailed as one of the safest from the human standpoint and one which holds promise of wiping out rodent colonies completely and permanently is now available avail-able to the general public, it has been announced by the Wisconsin Wis-consin Alumni Research founda tion (WARF). Warfarin, the new death-dealing substance, developed at the University of Wisconsin in the laboratories of Prof. Karl Paul Link, is now available to ro-denticide ro-denticide manufacturers, reported report-ed Ward Ross, WARF general manager. Warfarin's effectiveness will make it of great value for use on farms and restaurants, warehouses, ware-houses, and manufacturing establishments. es-tablishments. Other poisons kill so rapidly that dead and dying rats serve as a warning to the rest of the colony. Tasteless and odorless Warfarin, however, is slow-acting' and relies upon the cumulative effects of smgll quantities consumed over- a period per-iod of days, Poisoned rats show no immediate immed-iate effects. They eventually become be-come drowsy, and begin to walk with a slow and measured gait. Finally, without suffering, they die of internal hemorrhage. Other Oth-er rats are not warned of the poison there is no dash for water, there are no convulsions and the bait then remains to keep stray rats from again populating pop-ulating the area. One major advantage of Warfarin War-farin rodenticides is their relative rel-ative safety. Since they rely upon cumulative doses for he-suits, he-suits, there is little chance that enough bait will be taken by humans, pets, or domestic an-imals an-imals to cause adverse effects. Out of the several hundred nation-wide tests made on Warfarin, Warfar-in, no cause of accidental human hu-man poisoning was reported. "Warfain rodenticides will, in most cases, completely wipe out a rat or mouse population and then prevent the rebuilding of the population by killing newcomers new-comers as they arrive," the foundation said in announcing the new poison. |