Semen Collection
Sexing Technologies is a member of the National Association of Animal Breeders (NAAB)
and Certified Semen Services. We follow all the parameters recommended by these two organizations in our semen collection, processing and housing of the donors. Our goal is to maximize semen production by providing the bulls the maximum of comfort and taking all the necessary steps to minimized stress at the time of collection.
Bulls are collected using steers for live mounts in climate controlled arenas. The semen is identified with bar codes stickers at the time of collection and it's followed with the same ID along all the processing steps.
To produce sexed semen the sample needs to have high motility and very good morphology to pass the rigorous quality control standards established for the process. These QC standards are evaluated pre and post sexing in order to assure our customers that they are receiving an optimum product. These same parameters are used for the conventional semen collection, this is what ST has developed and staked its reputation on for high quality semen around the world.
This is what makes ST collected semen its fame for high quality around the world.
QUALITY CONTROL PRE-SEXED
Volume of 6 - 7 ml minimum
Concentration of no less than 1.1 billion sperms per ml.
Motility over 70%
Less than 15% Primary Problems - Heads
Less than 15% Secondary Problems - Tails
Less than 25 - 30% Total Morphologic Problems
QUALITY CONTROL POST-SEXED
A random straw of each collection is analyzed after freezing for quality control on morphology, motility, structural soundness, bacteria and purity.
The minimum values accepted for post thaw QC are:
Motility greater than 45% at 0 hours post thaw. 
Motility greater than 30% at 3 hours post thaw.
50% of intact acrosomes at 3 hours incubation
Less than 25 Bacteria colonies per freeze batch
A minimum of 87% cells of the desire gender is necessary to approve the release of the analyzed batch.