Used in research settings to measure levels of glutathione peroxidase enzyme in porcine (pig) biological samples such as blood, tissue homogenates, or cell lysates. This kit enables scientists to assess antioxidant activity and oxidative stress in pig models, which is valuable in studies related to animal health, nutrition, toxicology, and disease pathology. It is commonly applied in veterinary research, agricultural science, and biomedical studies using swine as experimental models. The assay helps in evaluating the impact of drugs, feed additives, or environmental factors on the antioxidant defense system.