food is developed in a batch process with two routes of feeding a a dry route and a b liquid route the dry route a consists of dosing in a weight a predefined amount of food bases in the form of pellets which are spilled to an oil mixer with vacuum when applying vacuum it is allowed to generate inside the oiler a pressure lower than the atmospheric pressure so that when depressurizing the air is forced to leave from the free space of the oiler as well as from the interior of the pellets along with part of the oleic of the oil of lower fusion point already present in the food the liquid route b operates in parallel and in two stages it has two deposits maintaining in one of them pre dosed lipoplex according to the caliber and the of food base that was programmed in the oiling batch in the first stage the vaccine is added by means of a fine aspersion under vacuum conditions and mixture to assure a suitable impregnating of all the pellets next the vacuum is freed slowly allowing the air entrance so that it is possible to return to the atmospheric pressure facilitating that the vaccine that is initially in the surface with part of the free oil is pushed by the air towards the interior of the pellets secondly under normal atmospheric pressure the fish oil that has been pre weighted in the second deposit is also applied finely by aspersion under mixture conditions dragging with itself any vaccine surplus that could have been in piping this process is called top coating and allows covering all the surface of each one of the pellets minimizing the.