Bovine IL-21 PharmaGenie ELISA Kit (SBRS0197)

Interleukin-21 is a pleiotropic cytokine central to T-cell, B-cell, and natural killer cell regulation, and the Assay Genie Bovine IL-21 PharmaGenie ELISA Kit provides quantitative measurement of this cytokine in bovine research samples. Studies of mucosal immunity, mastitis, reproductive immunology, vaccine development, and livestock infectious disease can leverage this assay for longitudinal and treatment-group comparisons.

This kit uses a colorimetric readout and is formatted as a 96-assay pack, supporting moderate-throughput screening of cell culture supernatants, plasma, or serum specimens collected from cattle. Researchers working with dairy or beef herds can apply the kit to characterize herd-level cytokine responses during vaccination campaigns, infection challenges, or nutritional intervention trials.

Standard ELISA workflow applies: capture antibody precoated plate, serial dilution of standards, sample incubation, detection antibody binding, substrate development, and absorbance reading on a microplate reader. The assay is intended for research use only, not for diagnostic or veterinary clinical decision-making.