Characteristics of female rainbow trout eggs with different maturation rates
https://doi.org/10.36038/0131-6184-2025-2-83-90
EDN: NRLGVP
Abstract
The biotechnics of trout breeding in recycled water supply installations, based on the constancy of the temperature regime (10-12 °C), led to the appearance of females with double maturation during the year. Bicyclic females are characterized by a shortened period of gametogenesis, which is usually accompanied by a lag in growth and the production of smaller eggs, unlike fish with a single spawn. The weight and size of salmon eggs are one of the main parameters that determine the quality of eggs. This trait is the final criterion in the evaluation and the initial one in the evaluation of offspring, therefore, the characterization of bicyclic females in terms of egg quality is important in breeding work. This served as the basis for studying accelerated trout maturation, the understanding of which can contribute to unlocking the biological potential of a popular aquaculture facility. The paper presents experimental data on the individual assessment of trout producers of the Adler (Adler breeding plant) and Rofor (FSGCR) breeds with different spawning rates in a comparative aspect.
About the Authors
N. I. Shindavina
Federal Breeding and Genetic Center of Fish Farming (branch of the Federal State Budgetary Institution Glavrybvod)
Russian Federation
Russian Federation
Nina I. Shindavina – Candidate of Biological Sciences, Leading Researcher at the Fish Breeding Laboratory
188514, Leningrad region, Lomonosovsky district, village Ropsha, Strelninskoe highway, p. 4
V. Y. Nikandrov
Federal Breeding and Genetic Center of Fish Farming (branch of the Federal State Budgetary Institution Glavrybvod)
Russian Federation
Russian Federation
Vladimir Y. Nikandrov – is a leading researcher at the Fish Breeding Laboratory
188514, Leningrad region, Lomonosovsky district, village Ropsha, Strelninskoe highway, p. 4
A. A. Zinchenko
Federal Breeding and Genetic Center of Fish Farming (branch of the Federal State Budgetary Institution Glavrybvod)
Russian Federation
Russian Federation
Alexander A. Zinchenko – postgraduate student, researcher at the Laboratory of Fish Breeding
188514, Leningrad region, Lomonosovsky district, village Ropsha, Strelninskoe highway, p. 4
J. N. Lukina
Northern Water Problems Institute of the Karelian Research Centre of the Russian Academy of Sciences
Russian Federation
Russian Federation
Julia N. Lukina – Doctor of Biological Sciences, Director
185030, Republic of Karelia, Petrozavodsk, Alexander Nevsky ave., 50
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Review
For citations:
Shindavina N.I., Nikandrov V.Y., Zinchenko A.A., Lukina J.N. Characteristics of female rainbow trout eggs with different maturation rates. Fisheries. 2025;1(2):83-90. (In Russ.) https://doi.org/10.36038/0131-6184-2025-2-83-90. EDN: NRLGVP
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