Animal serum is the acellular, non-clotting fluid fraction of whole blood, separated after coagulation, which removes fibrinogen and active clotting factors from the plasma matrix. What remains is a biochemically rich medium carrying growth factors, hormones, transport proteins, and nutrients that support cell growth in ways that defined formulations alone don’t fully replicate.
Not all animal sera are equivalent. Species origin shapes the protein profile, immunoglobulin content, and growth factor concentration of the resulting serum. Fetal bovine serum remains the most widely used supplement in cell culture, but adult bovine serum, rabbit serum, and other species-specific options provide matched biological environments for protocols where FBS introduces cross-reactivity or a physiological mismatch.
Equitech-Bio supplies animal sera from multiple species, processed to preserve the biological activity your cells and culture systems depend on. Each lot is documented and handled to deliver consistent performance across applications. If the species your research runs on matters, and it does, the serum should reflect that.
Animal serum is the protein-rich fluid remaining after whole blood has clotted and cellular components have been removed. It contains growth factors, hormones, immunoglobulins, and nutrients that provide essential support for cell growth. Unlike plasma, it lacks fibrinogen and clotting factors. Animal sera vary in composition depending on species origin and processing conditions.
Animal sera support cell culture media supplementation, immunoassay development, and diagnostic reagent validation. Fetal bovine serum is the standard baseline for most culture applications, but species-matched options, including rabbit and bovine adult serum, provide the appropriate biological context when FBS causes interference. Pairs with chicken serum albumin for cross-species antibody panel work. Research use only.
Animal sera span a wide range of species. Fetal bovine serum and adult bovine serum are the most common. Rabbit, equine, porcine, ovine, and other species-specific sera provide matched protein environments for model-specific research. Canine albumin and sterile-filtered bovine plasma extend that range into plasma-fraction applications where full serum isn't the right starting material.
Cells in culture need more than a defined salt solution to behave like living biology. Animal serum supplies growth factors, attachment proteins, and nutrients that basal media don't provide in full. Fetal bovine serum provides broad-spectrum support, but when your culture model requires species specificity, switching to a matched animal serum option removes a variable that media alone can't account for.
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