The received results on studying of the radio modifying influence of a microbic polyantigene on an organism of the irradiated pigs expand ideas of a possibility of receiving safer, from the point of view of radiation ecology, livestock production. On organoleptic indicators, degree of an draining of blood, a bacterial semination, the content of flying fatty acids, amino -ammoniac nitrogen, reaction to products of primary disintegration, meat of pigs, the immunized microbic polyantigene and subjected to prevention before radiation, conforms to requirements of state standard specifications and Rules of veterinary and sanitary examination to good -quality meat. Meat irradiated in semi -lethal and lethal doses and the immunized a radio protectant of animals had previously the same stability at storage in the conditions of the household refrigerator (0 divided by 4(0)C), as well as the meat received from healthy pigs Long feeding to infant rats and mice of the meat received from, LD50 and LD100 imparted by, a microbic polyantigene and irradiated in doses in 30 days after immunization of animals, didn't exert negative impact on kliniko-hematologic indicators, and also at the same time gonadotropin, embryotoxic and teratogenic effects indicating that the safety and purity of the product.