Embryo production from superovulated Holstein-Friesian dairy heifers and cows after insemination with frozen-thawed sex-sorted X spermatozoa or unsorted semen
Peippo, Jaana; Vartia, K.; Kananen-Anttila, M.; Räty, Mervi; Korhonen, Kati; Hurme, Timo; Myllymäki, H.; Sairanen, Auvo; Mäki-Tanila, Asko (Elsevier Science, 2009)