Al-sadoon, A.A., Fakhrildin, M.B.-R. and Ishak, M.A. 2017. Effect of vitrification on the morphology and viability of early embryos of sheep. Journal of Kerbala for Agricultural Sciences. 4, 5 (Apr. 2017), 280–288. DOI:https://doi.org/10.59658/jkas.v4i5.712.