TY - SER AU - Duarte,A.M. AU - Diniz,E.G. AU - Nascimento,M.R.B.M. AU - Tavares,M. AU - Franco,R.V.R. TI - Pregnancy rates in heifers inseminated with semen of nelore bulls sexed by flow cytometry KW - GADO NELORE KW - ESPERMATOZÓIDE ER -