D.Abadjieva, M.Chervenkov, R.Stefanov, N.Metodiev, E.Kistanova, D.Kacheva, E.Raycheva

Effect of breeding season on the kinematic parameters and morphology of ram’ sperm from synthetic population Bulgarian milk sheep breed. Bulg.J.of Agricultural Sci., 20, 4, 967-972, 2014.
ISSN 1310-0351