2Hendrickson, J.M.K.F.Hilbert. A new and serious sep ticemic disease of young ducks with a description of the causative organism Pfeifferella anatipestifer.N.S.Cornell Vet[J], 1932, 22:239-252.
3Dougherty, E. Saunders, L.Z, Parsons, E. H.The pathol ogy of infectious serositis of ducks [J]. Am J Pathol,1955,31:475-487.
4Leibovitz, L.A survey of the so-called anatipestifer syn drome [J].Avian Dis, 1972, 16:836-851.
