Fertility following Inseminations with Frozen-Thawed Reconcentrated and Unconcentrated Ram Semen

Abstract

Fertility results are presented for ram semen that was pellet-frozen in tris-glucose-yolk-g1ycerol diluent. Lambing following insemination with concentrated and unconcentrated inseminates was 35�0% (49/140) and 38�6% (56/145) respectively. Increasing the number of motile spermatozoa and double insemination improved the fertility.