Related Experiment Video
Updated: May 6, 2026

Cortisol Extraction from Sturgeon Fin and Jawbone Matrices
Published on: September 10, 2019
Effects of cortisol on growth and development in tilapia larvae,Oreochromis mossambicus
A Mathiyalagan1, P K Reddy, T J Lam
1Department of Zoology, National University of Singapore, Lower Kent Ridge Road, 119260, Singapore.
Abstract:
Treatment of one-day-old yolksac larvae of tilapia (Oreochromis mossambicus), by immersion in cortisol solution for two weeks, significantly enhanced growth. The standard length, tail length, head width and wet weight showed dose-dependent increases at concentrations of cortisol (hydrocortisone) from 0.05 ppm to 0.5 ppm, with no further increase at 1.0 ppm. However, cortisol at 5.0 ppm retarded the growth of the larvae without causing any morphological abnormality. Yolk absorption and the onset of free-swimming activity in the larvae were also accelerated by cortisol treatment.
More Related Videos
Related Concept Videos
Derivatives: Problem Solving
Osmoregulation in Fishes
Oxygen Requirements and Growth Patterns

