Cryogenics is one of science’s most remarkable — and demanding — processes. It requires snap-freezing genetic material to sub-zero temperatures, then restoring it to a fully viable state when needed. Once the stuff of science fiction, it is now a well-established procedure used across livestock, companion animals, wildlife, and human medicine.

It is widely understood that some sperm will not survive the freeze-thaw cycle. To ensure post-thaw samples meet the required standard, Just Genes selects a random straw from each batch, thaws it, and assesses it under a Phase Contrast microscope. If the sample does not meet minimum quality thresholds, the batch is destroyed — unless the owner requests otherwise.

For reliable, consistent results, Just Genes uses the Minitube 6825/0000 Goblet Packer — one of only a handful in Australia. This precision instrument automatically fills 0.25 ml straws, removing variability and ensuring every sample is packed to the same high standard.

minitube

For international shipments and export clients, semen must be packed as 25 x 0.25 ml straws in 13 mm goblets. The Minitube meets this internationally accepted format and automatically transfers straws directly into liquid nitrogen storage — minimising the risk of human error at every step. Just Genes has used this system successfully for many years, serving thousands of satisfied clients. Combined with our morphology testing and secure storage facilities, you can trust your samples are in expert hands