Our Story

Since 1995, Great Lakes Sire Service (GLSS) offers custom semen cyropreservation for beef, dairy, and cervidae species. GLSS began in 1995 as a mobile lab providing strictly on-farm collection and freezing services. Today we have grown to a permanent facility that can safely house and handle bulls of all size. Our services have expanded to include breeding soundness exams, semen collection & processing as well as semen storage & shipment.

The permanent facility, located in southern Michigan, provides boarding for bulls needing regular collections or larger quantities of semen for the producer. Semen is processed in the lab and stored in GLSS tanks until shipment to the client or their customers. Today GLSS has the capacity to hold over 15,000 straws.

In January of 2001 GLSS became CSS health certified.  Certified semen services (CSS), a subsidiary of National Association of Animal Breeders provides auditing services to ensure the health and identity of semen processed by its 33 member organizations. With no other CSS participants in Michigan or Indiana, beef and dairy producers now have the opportunity to offer their customers semen processed under stringent health standards. Since the outbreak of TB (bovine tuberculosis) in Michigan, interstate animal movement has been restricted. Commercial AI studs and progressive cattlemen marketing semen can now have semen collected in Michigan and shipped anywhere, including many foreign countries.

Call GLSS to schedule your next collection or to get more information on all of our services. Call 269-489-9888