Used in research settings to quantify chicken pepsin (PP) levels in biological samples such as serum, plasma, or tissue homogenates. This ELISA kit enables detection and measurement of pepsin for studies related to digestive function, gastrointestinal health, and enzyme regulation in poultry or avian models. It is commonly applied in veterinary research, agricultural science, and experimental biology to assess digestive enzyme activity and monitor physiological or pathological changes in the digestive system. The assay provides a sensitive and specific method for high-throughput analysis in laboratory environments.