Used in poultry research to quantify levels of Transforming Growth Factor beta 1 in biological samples such as serum, plasma, or tissue homogenates. Enables monitoring of immune responses, inflammation, and tissue repair processes in chickens. Commonly applied in veterinary diagnostics, vaccine development, and studies of avian diseases including viral infections like Newcastle disease or avian influenza. Supports research in immunology and pathogenesis by providing a reliable method to assess cytokine activity in experimental models.