Polled Derby Back Metadata Conservation StatusExtinctLast RecordThe late 19th centuryPlace of BreedingEngland | Ohio, USAExtinction ReasonContributed to the MulleyReferencesMacDonald, J. (n.d.). History of polled Aberdeen or Angus cattle, giving an account of the origin, improvement, and characteristics of the breed. eBooksRead.com. https://www.ebooksread.com/authors-eng/james-macdonald/history-of-polled-aberdeen-or-angus-cattle-giving-an-account-of-the-origin-imp-hci/page-23-history-of-polled-aberdeen-or-angus-cattle-giving-an-account-of-the-origin-imp-hci.shtml Machado, E. A. J. P. M. (2019, July). (dissertation). Endogamia e caracterização da estrutura populacional da raça bovina Shorthorn e ovina Romney Marsh. Retrieved from https://wp.ufpel.edu.br/ppgz/files/2021/01/Endogamia-e-caracterizacao-da-estrutura-populacional-da-raca-bovina-Shorthorn-e-ovina-Romney-Marsh.pdf. (in Portuguese) Porter, V. & Mason, I. L. (2002). Mason’s World Dictionary of livestock breeds, types and varieties (5th ed.). Wallingford, Oxfordshire, UK: CABI. Polled Albion Polish Marsh Back to items list