Mezzalira, A. Mezzalira, J.C. Moraes, A.N. Thaler Neto, A. Vieira, A.D. Barreta, M.H. Damiani, J. Vitrification of bovine ivp embryos: age of embryos and exposure time to cryoprotectant influence viability Subjects--Topical Terms: BOVINOCULTURA DE EMBRIÃO