GENES STIMULATED. “Sex pheromones in the urine of dominant male Mozambique tilapia (Oreochromis mossambicus) deter subordinate males, attract females and prime ovulation in females. Two steroid glucuronates (5β-pregnane-3α,17α,20β-triol 3-glucuronate and its 20α-epimer) are produced in large quantities by dominants and are the most potent urinary odorants to females. They act via (a) specific and common olfactory receptor(s) on the females’ endocrine axis, stimulating production and release of 17,20β-P, the major oocyte maturation-inducing hormone in teleost fishes. This leads to the ripening of the oocytes and (likely) synchronizes spawning.”
https://lnkd.in/drx5_4e
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022