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Featured News: Dr. Ed Squires Receives Prestigous Award

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August 01, 2018

Ed Squires_ISER Award Photo 2 Congratulations to Dr. Ed Squires! In July, he was a recipient of one of the first Life Time Achievement Awards presented by the International Equine Reproduction Symposium. This award was established in 2017 to honor individuals who have made significant contributions to the discipline of Equine Reproduction, either through research or clinical practice. These contributions, whether they have been in research, leadership or mentorship, have had a lasting impact on the discipline of equine reproduction, and candidates have demonstrated a lifetime commitment to progress in the discipline.

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Featured Blog: Quality Control is at the Core of the SBS Difference

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October 31, 2014

Quality Control_SBS Extender LabThe SBS network of affiliates is the acknowledged leader in the field of cryopreservation of equine semen. Each year we freeze thousands of ejaculates equating to tens of thousands of doses. In fact, this year the SBS Network will surpass the 50,000 ejaculate milestone since the company’s founding in 1987. When SBS was founded the company leadership made a commitment to quality of the finished product above all else. We wanted to put technology to use to help grow the equine frozen semen AI industry in the most responsible manner possible. It was clear early on that one of the major factors limiting the application of frozen semen in the horse industry was inconsistent quality of the product being put on the market. Breeders and veterinarians experienced frustration with attempts to use expensive semen that in many cases was of very poor quality. We knew that in order for breeders to realize the full potential of frozen semen technology they would have to be convinced that by applying strict standards for quality, frozen semen could be produced to achieve results similar to cooled semen. We also knew that these results would have to be produced in an efficient and economical way. Quality became the cornerstone upon which we would build our business.

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Featured Question

How do you test the quality of the semen?

We perform a thorough post-thaw evaluation on 2 pooled straws from every ejaculate frozen. After thawing, the semen is cultured to confirm the absence of bacterial growth and sperm motility is evaluated both visually and using a Hamilton-Thorne CEROS model automated motility analyzer. We also perform this motility evaluation after the thawed semen is diluted in extender and incubated at 37°C for 30 minutes. Computer assisted sperm analysis (CASA) allows objective evaluation of sperm motility and provides information on total and progressive motility as well as velocity parameters. However, one must remember that although motility is an indicator of relative cell health, fertilization is a complex process that requires numerous functional attributes of both sperm and egg. Therefore the true fertility of this or any frozen semen can only be determined by properly timed insemination of reproductively healthy mares.

See also:

Not All Frozen Semen is Created Equally

What is Progressive Motility?

Test Breeding Mares as an Aid to Marketing Frozen Semen


Breeding for success? Follow the experts!

What Our Clients Say

Rebeca Martin - Show Me the Buckles and Rebeca "SBS ensures that only quality semen is shipped and every step is done in a supervised, professional manner.  Their lab is filled with the most up to date equipment..."

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