Cryopreservation to perpetuate genetic heritage
Semen freezing is the gold standard for overcoming time and distance constraints. By stabilizing spermatozoa in liquid nitrogen at -196°C, we suspend their metabolism while preserving their structural integrity. This technology secures a stallion's reproductive potential for decades, offering total flexibility between his sporting career and stud duties.
Biological requirements of cellular dehydration
Equine spermatozoa are characterized by high sensitivity to osmotic and thermal variations. Their rapid movement masks greater membrane fragility than in other species. To succeed in this transition to extreme cold, the laboratory protocol must be strictly precise. Immediately after collection, the semen is filtered and then cooled according to a controlled temperature curve to minimize metabolic stress.
The centrifugation step is crucial: it allows for the concentration of seminal cells while removing part of the seminal plasma, whose composition can sometimes hinder sperm survival during storage. We then introduce specific cryoprotectants that penetrate the membrane to prevent the formation of intracellular ice crystals, which are true obstacles to biological structures.
Anticipating commercial and sanitary markets
The success of a freezing campaign is measured not only under the microscope after thawing but also by its legal validity for export. The stallion's health status at the precise time of collection determines which borders his doses can cross.
Semen collected according to basic standards can circulate on the national market (Belgium) following standard tests for metritis (CEM) and anemia (EIA). In contrast, access to the European market (INTRA trade) or third countries (USA, Canada, Australia, Middle East) imposes much heavier requirements: 30-day quarantine periods in an approved center without contact with horses of lower status, screening tests for viral arteritis (EVA), and collection protocols on fixed dates. We emphasize the importance of defining your commercial ambitions from the start, as a missed test can invalidate an entire production for certain countries.
Biological validation and our professional framework
Every stallion is unique, and his physiology dictates its own rules. While modern technology allows for exceptional results, there is a natural variability in sperm resistance to extreme cold. In a spirit of transparency, and in accordance with Article 5.1 of our General Terms and Conditions, our center commits to an obligation of means: we employ the most advanced protocols and high-performance extenders to optimize every dose.
However, as cryopreservation remains dependent on individual cellular response (some stallions showing a particular sensitivity to freezing), we cannot guarantee a systematic result (Article 5.2). This realistic approach to biology, which you accept by entrusting your stallion to us (Article 3), allows us to work with complete confidence and provide honest advice on the best breeding strategy for your champion.
Epididymal freezing as a last resort
We also offer a genetic rescue technique: epididymal collection. Performed in the hours following castration or accidental death, it allows for the recovery of mature spermatozoa stored in the epididymal ducts. This is a unique opportunity to preserve offspring from a horse whose exceptional sporting performance had not yet justified traditional breeding use.
Freezing request form Epididymal freezing form Description of sanitary tests