Etude de la fertilité in vitro de la semence de taureau après congélation-décongélation avec du LDL du jaune d'oeuf de poule : Comparaison avec l'Optidyl, dilueur commercial à base de jaune d'oeuf

Motility of bovine semen cryopreserved in Low-density lipoproteins (LDL) was analyzed and compared to semen cryopreserved with Optidyl(R), a commercial extender containing egg yolk. To evaluate the fertilizing ability of semen, we used in vitro fertilization test, whereas acrosome and plasma membrane integrity were also evaluated. The percentage of motile spermatozoa was near two fold higher after freezing in LDL than in Optidyl(R) 54.4% versus 30.2% (P<0.05). Integrity of the acrosome and the