Ferdowsi University of Mashhad 1 article published in JoVE Environment Cortisol Extraction from Sturgeon Fin and Jawbone Matrices Jalil Ghassemi Nejad1,2, Mohammad Ataallahi1, Mohammad H. Salmanzadeh3, Kyung T. Park3, Hong G. Lee2,4, Alireza Shoae5, Atieh Rahimi6, Kyung I. Sung1, Kyu H. Park1 1College of Animal Life Sciences, Kangwon National University, 2Team of An Educational Program for Specialists in Global Animal Science, Brain Korea 21 Plus Project, Konkuk University, 3Persian Gesture, 4Department of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, 5Department of Animal Science, Animal Physiology, AgResearch, 6Faculty of Agriculture, Animal Science Department, Ferdowsi University of Mashhad In this study, we present a protocol for cortisol extraction from the fin and jawbone of sturgeon species. Fin and jawbone cortisol levels were further examined by comparing two washing solvents followed by ELISA assays. This study piloted the feasibility of jawbone cortisol as a novel stress indicator.
