An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period

Purpose. To investigate the peculiarities of obtaining ovulated eggs of the Siberian sturgeon in hatchery conditions in non-traditional (winter) period and determine major features of brood fish used for the experiments. Methodology. The material for the study were age-10+ Siberian sturgeon females...

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Published in:Ribogospodarsʹka nauka Ukraïni.
Main Authors: S. Pashko, M. Pashko, O. Tretiak, O. Kolos
Format: Article in Journal/Newspaper
Language:English
Ukrainian
Published: Institute of Fisheries 2021
Subjects:
Online Access:https://doi.org/10.15407/fsu2021.04.029
https://doaj.org/article/481960c221eb4da69b6abd09f0015786
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spelling ftdoajarticles:oai:doaj.org/article:481960c221eb4da69b6abd09f0015786 2023-05-15T13:01:57+02:00 An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period S. Pashko M. Pashko O. Tretiak O. Kolos 2021-12-01T00:00:00Z https://doi.org/10.15407/fsu2021.04.029 https://doaj.org/article/481960c221eb4da69b6abd09f0015786 EN UK eng ukr Institute of Fisheries https://fsu.ua/index.php/en/2021/4-2021-58/2021-04-029-039-pashko-eng https://doaj.org/toc/2075-1508 https://doaj.org/toc/2312-9581 doi:10.15407/fsu2021.04.029 2075-1508 2312-9581 https://doaj.org/article/481960c221eb4da69b6abd09f0015786 Ribogospodarsʹka Nauka Ukraïni, Iss 4(58), Pp 29-39 (2021) brood siberian sturgeon industrial aquaculture non-traditional technologies eggs ovulation fisheries parameters Aquaculture. Fisheries. Angling SH1-691 article 2021 ftdoajarticles https://doi.org/10.15407/fsu2021.04.029 2022-12-30T19:39:23Z Purpose. To investigate the peculiarities of obtaining ovulated eggs of the Siberian sturgeon in hatchery conditions in non-traditional (winter) period and determine major features of brood fish used for the experiments. Methodology. The material for the study were age-10+ Siberian sturgeon females with body weights of 6.20-8.24 kg grown in conditions of floating cages in a water body with natural temperature regime of the forest-steppe zone of Ukraine. The experiments were conducted with a regulated water temperature regime in the third decade of January with the use of natural gonadotropic drugs for the stimulation of egg maturation in fish. Brood fish were prepared for the experiment in the recirculating aquaculture system. Measurement of fisheries parameters and study of physicochemical factors of the aquatic medium were performed according to generally accepted methods. Experiment results were assessed statistically using standard software. Findings. With water temperature of 14-15оС, depending on the dosage of the gonadotropic drug, different efficiencies of gonad maturation in experimental groups of fish were detected. More than 85% of females matured after dosing of gonadotropic drugs 3.5 and 4.5 mg / kg. In the version with a minimum dose of gonadotropic substance 2.5 mg / kg responded positively to hormonal stimulation 57% of females. The average weight of eggs obtained in some groups of brood fish was 819.5-1079.0 g. Average working fecundity and relative working fecundity in experimental groups of the Siberian sturgeon females varied within 47.95-52.64 thousand eggs and 6.93-7.17 thousand eggs/kg of fish body weight, respectively. The duration of maturation after the second (resolving) administration of the gonadotropic drug until the moment of the occurrence of the ovulation process varied mainly within 15-20 hours. Originality. The peculiarities of obtaining mature eggs of the Siberian sturgeon with the use of methods of industrial reproduction of sturgeons, which are new for the aquaculture of ... Article in Journal/Newspaper Acipenser baerii Siberian sturgeon Directory of Open Access Journals: DOAJ Articles Ribogospodarsʹka nauka Ukraïni. 4(58) 29 39
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
Ukrainian
topic brood siberian sturgeon
industrial aquaculture
non-traditional technologies
eggs
ovulation
fisheries parameters
Aquaculture. Fisheries. Angling
SH1-691
spellingShingle brood siberian sturgeon
industrial aquaculture
non-traditional technologies
eggs
ovulation
fisheries parameters
Aquaculture. Fisheries. Angling
SH1-691
S. Pashko
M. Pashko
O. Tretiak
O. Kolos
An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
topic_facet brood siberian sturgeon
industrial aquaculture
non-traditional technologies
eggs
ovulation
fisheries parameters
Aquaculture. Fisheries. Angling
SH1-691
description Purpose. To investigate the peculiarities of obtaining ovulated eggs of the Siberian sturgeon in hatchery conditions in non-traditional (winter) period and determine major features of brood fish used for the experiments. Methodology. The material for the study were age-10+ Siberian sturgeon females with body weights of 6.20-8.24 kg grown in conditions of floating cages in a water body with natural temperature regime of the forest-steppe zone of Ukraine. The experiments were conducted with a regulated water temperature regime in the third decade of January with the use of natural gonadotropic drugs for the stimulation of egg maturation in fish. Brood fish were prepared for the experiment in the recirculating aquaculture system. Measurement of fisheries parameters and study of physicochemical factors of the aquatic medium were performed according to generally accepted methods. Experiment results were assessed statistically using standard software. Findings. With water temperature of 14-15оС, depending on the dosage of the gonadotropic drug, different efficiencies of gonad maturation in experimental groups of fish were detected. More than 85% of females matured after dosing of gonadotropic drugs 3.5 and 4.5 mg / kg. In the version with a minimum dose of gonadotropic substance 2.5 mg / kg responded positively to hormonal stimulation 57% of females. The average weight of eggs obtained in some groups of brood fish was 819.5-1079.0 g. Average working fecundity and relative working fecundity in experimental groups of the Siberian sturgeon females varied within 47.95-52.64 thousand eggs and 6.93-7.17 thousand eggs/kg of fish body weight, respectively. The duration of maturation after the second (resolving) administration of the gonadotropic drug until the moment of the occurrence of the ovulation process varied mainly within 15-20 hours. Originality. The peculiarities of obtaining mature eggs of the Siberian sturgeon with the use of methods of industrial reproduction of sturgeons, which are new for the aquaculture of ...
format Article in Journal/Newspaper
author S. Pashko
M. Pashko
O. Tretiak
O. Kolos
author_facet S. Pashko
M. Pashko
O. Tretiak
O. Kolos
author_sort S. Pashko
title An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
title_short An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
title_full An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
title_fullStr An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
title_full_unstemmed An experience of obtaining mature eggs of the Siberian sturgeon (Acipenser baerii (Brandt, 1869)) in non-traditional period
title_sort experience of obtaining mature eggs of the siberian sturgeon (acipenser baerii (brandt, 1869)) in non-traditional period
publisher Institute of Fisheries
publishDate 2021
url https://doi.org/10.15407/fsu2021.04.029
https://doaj.org/article/481960c221eb4da69b6abd09f0015786
genre Acipenser baerii
Siberian sturgeon
genre_facet Acipenser baerii
Siberian sturgeon
op_source Ribogospodarsʹka Nauka Ukraïni, Iss 4(58), Pp 29-39 (2021)
op_relation https://fsu.ua/index.php/en/2021/4-2021-58/2021-04-029-039-pashko-eng
https://doaj.org/toc/2075-1508
https://doaj.org/toc/2312-9581
doi:10.15407/fsu2021.04.029
2075-1508
2312-9581
https://doaj.org/article/481960c221eb4da69b6abd09f0015786
op_doi https://doi.org/10.15407/fsu2021.04.029
container_title Ribogospodarsʹka nauka Ukraïni.
container_issue 4(58)
container_start_page 29
op_container_end_page 39
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