Used to measure levels of interleukin-4 (IL-4) in biological samples from cattle, such as serum, plasma, or cell culture supernatants. This kit is essential in veterinary research and immunology studies, particularly for evaluating immune responses associated with allergic reactions, parasitic infections, and vaccine development. It enables accurate quantification of bovine IL-4, helping researchers assess T-helper 2 (Th2) cell activity and cytokine profiles in disease models or during therapeutic interventions. Widely used in agricultural research and pharmaceutical testing involving bovine species.