Answers are grounded in this paper and cite their sources.
Testosterone was isolated from the conjugated steroid fractions of both plasma and testes of spawning male sockeye salmon. The structure of the steroid was confirmed by several criteria including infrared spectra. Glucuronoside conjugation was indicated by the use of a specific glucuronidase inhibitor, glucosaccharo-1, 4-lactone, and the inability of the enzyme to hydrolyze testosterone sulphate.
No takes yet. Share an insight, caveat, or question.
Grajcer et al. (1963) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: