Sheep Blood and Serum Products

Sheep blood is the backbone of the blood agar that microbiology labs reach for every day. Defibrinated sheep blood is added to base media like tryptic soy and Columbia agar to make the plates used to grow and identify bacteria. Labs choose it for one practical reason: it gives clean, readable hemolysis. The sharp beta-hemolysis that flags Group A streptococci shows up clearly, and sheep blood suppresses Haemophilus haemolyticus, an organism that can be mistaken for a pathogen on other blood types.

Our medical-grade sheep products are collected and custom packaged to your specifications. They support culture media production, clinical and human diagnostic testing, and research worldwide. Sheep red blood cells also serve as indicator cells in complement fixation and hemolysis assays, and our sheep serum is used to enrich media and supplement culture systems. Whatever the application, the goal is the same one we have held since 1988: consistent, traceable product that performs the same way every time.

We build sheep products around your workflow, not the other way around. Packaging, volume, and dispensing-port configuration are customized to your pouring equipment, and blood can be supplied defibrinated, with an anticoagulant such as citrate, heparin, EDTA, or Alsever’s solution, or separated into red blood cells, plasma, and serum.

For sheep blood specifically, sterile medical-grade oxygen can be added to support your media application or the plate appearance you are after. If your protocol has particular requirements, tell us up front and we will prepare the product to match rather than asking you to adjust it after it arrives.

Good products start with healthy animals. We work with 7,500 Rambouillet ewe lambs each year on our central Montana ranch, and once their donor program is complete they enter a rebreeding program and are rehomed to other ranches. We are the only company in the industry with a sheep rebreeding program. Our animals are exclusively blood donors, raised antibiotic-free with no growth hormones. If an animal is ever treated for a health reason, it is quarantined for 30 days before returning to the donor line.

That care is why our sheep products are 100% traceable and 100% pure. We collect within 8 to 48 hours of shipment, so the product reaching your lab is fresh. Documentation is available to support clinical, pharmaceutical, and research quality requirements.