Genetic differentiation between the Old and New types of Serbian Tsigai sheep Mirjana Ćinkulov, Miika Tapio, Mikhail Ozerov, Tatyana Kiselyova, Nurbiy Marzanov, Ivan Pihler, Ingrid Olsaker, Mensur Vegara and Juha Kantanen Genet. Sel. Evol., 40 3 (2008) 321-331 Published online: 10 April 2008 DOI: 10.1051/gse:2008006