Can we use in vitro fertilization tests to predict semen fertility?

This presentation deals with assays based on in vitro fertilization (IVF) and related techniques such as zona pellucida (ZP) binding assays and oocyte penetration tests. These types of assays have been developed for several species of domestic animals. A description of the assays and how they have been performed in domestic animals, as well as data on the correlation between the results of assays and actual in vivo fertility are presented. Used either as single tests or in combination with other tests, this type of assay can provide valuable information about a semen donor, an insemination dose or a method of semen preservation.