Absorbed into the Polders Black Pied to form the Belgian Black Pied
References
Leroy, P., Hanset, R., & Francois, A. (1980). L’ influence de certains facteurs non genetiques sur la production laitiere. 6. Quelle importance donner au numero de lactation dans l’ ajustement des productions laitieres pour l’ age au velage en race Pie-Noire de Herve. Article original. Annales de Medecine Veterinaire, 124. https://agris.fao.org/search/en/providers/123819/records/647364b953aa8c89630c522a
Porter, V., & Mason, I. L. (2002). Mason’s World Dictionary of Livestock Breeds, Types and Varieties (5th ed.). Wallingford, Oxfordshire, UK: CABI Publishing.
Porter, V., Alderson, L., Hall, S. J. G., & Sponenberg, D. P. (2016). Mason’s World Encyclopedia of Livestock Breeds and Breeding: 2 Volume Pack (1st ed.). Wallingford, Oxfordshire, UK: CABI.