The Black Slavonian is a breed of pig also known as Crna slavonska, Schwarzes slovonisches, Faiferica, Pfeifer.
The Black Salvonian are a meat breed with semi-lop ear which originated, by Count Pfeifer, from Berkshire and Poland China crossed with Black Mangalitsa.
The breed is nearly extinct..
- Mason, I.L. (1996) A World Dictionary of Livestock Breeds, Types and Varieties. Fourth Edition. C.A.B International.