immunochemical measurement method

“Hormones” and “oogenesis-related protein” of fish can be detected and measured by blood tests. For example, the common female sex hormone in fish is a steroid hormone called estradiol 17β (E2), which is the same female sex hormone found in the blood of women. In this way, many steroid hormones are common to vertebrates, and commercially available kits can be used to measure the hormones. On the other hand, protein-related hormones such as gonadotropin and oogenesis-related proteins partially differ in structure depending on the species, and we have to develop detection and measurement methods for each species respectively. While there are various methods for detecting and measuring steroids and proteins in the blood, one of the cheaper and more common methods is an immunochemical measurement method using an antigen-antibody reaction.