Reproductive biology and impacts on aquatic species Open access Peer reviewed

Morphophysiological Features of Rainbow Trout Oncorhynchus mykiss (Walbaum) Produced by Sex Reversal at the Third Year of Rearing

O. P. Filippova, S. E. Zuevskiy, V. V. Popov, M. A. Ezhkin

Fisheries | Nov 2, 2026

Abstract

Abstract

The characteristics of changes in liver, heart, spleen, gonadosomatic index, and body condition indices of trout in the third year of rearing under the influence of 17α-methyltestosterone (MT) are demonstrated. General rules regarding morphophysiological indices for females and redefined males are established.

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Authors

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O. P. Filippova

first | All-Russian Research Institute Fisheries and Oceanography

S. E. Zuevskiy

middle | All-Russian Research Institute Fisheries and Oceanography

V. V. Popov

middle | All-Russian Research Institute Fisheries and Oceanography

M. A. Ezhkin

last | All-Russian Research Institute Fisheries and Oceanography

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Citation

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@article{Filippova2026Morphophysiological,
  title = {Morphophysiological Features of Rainbow Trout Oncorhynchus mykiss (Walbaum) Produced by Sex Reversal at the Third Year of Rearing},
  author = {O. P. Filippova and S. E. Zuevskiy and V. V. Popov and M. A. Ezhkin},
  journal = {Fisheries},
  year = {2026},
  doi = {10.36038/0131-6184-2026-5-134-143},
  url = {https://doi.org/10.36038/0131-6184-2026-5-134-143}
}

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