Virginia Polytechnic Institute. Cooperative Extension ServiceGross, Walter B.DuBose, Robert Trafton2018-04-112018-04-111963-01http://hdl.handle.net/10919/82793Discusses security management, a system of using every feasible method for the prevention of spread of poultry disease between and within flocks.8 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Poultry -- Diseases -- PreventionExtension publicationPoultry diseasesDisease prevention