Which of the following is a growth hormone?

Correct option is B

Correct Answer: (b) Somatotropin
Explanation:
→ Somatotropin (Growth Hormone, GH) regulates somatic growth, metabolism, and protein synthesis in fishes.
→ Secreted by adenohypophysis (pars distalis).
→ Plays key role in aquaculture to enhance growth rate and feed conversion.
Information Booster:
→ GH works synergistically with IGF-1 produced in the liver.
→ Influences muscle development and lipid metabolism.
→ Stress and poor nutrition can reduce GH secretion.
Additional Information (Other Options):
(a) Thyrotropin – regulates thyroid.
(c) Corticotropin – stimulates cortisol release.
(d) Leuteotropin – prolactin-like role.