Abstract: A pharmaceutical composition to be administered to avian species, especially poultry, either into the drinking water or into the diet or to be aerosolised over the hens, consisting of a vehicle system comprising a mono-/di-, ester-/etherglycerides conjugated with water-soluble polymer groups selected from PEG's containing 2-30 polyoxyethylene units, an antigen and optionally a bacterial toxin, preferably CTB, are useful for the production of antibodies in egg yolk. The conjugated glycerides are able to augment the production of antibodies ex-vivo in egg yolk, minimizing animal stress and invasive procedures.

Abstract: A method of accelerating the ripening of cheese is disclosed wherein cheese is placed in an electric field during part of the ripening process. During the ripening process, the direction of the electric field is changed at a constant or varying frequency during the entire course of the ripening process.