The soybean lecithin is used as a phospholipids source for the commercial extenders
available for freezing bull semen which allows replacing the traditional membrane protective
of animal origin (egg yolk). These extenders have been tested for freezing semen in various
livestock species but specific adjustments cannot be made due to trade protection. The aim
of the present study was to develop a soybean-based extender analyzing the optimal
conditions of preparation, handling, and storage in order to optimize its use in liquid ram …