Results 61 to 70 of about 1,410 (199)

OPTIMIZATION OF THE CONDITIONS OF STERLET (ACIPENSER RUTHENUS, L. 1758) SPERM CRYOPRESERVATION FOR EGG FERTILIZATION IN FISH FARM CONDITIONS

open access: yesRibogospodarsʹka Nauka Ukraïni, 2017
Purpose. To optimize the conditions of sterlet sperm cryopreservation for works on egg fertilization and for producing viable offspring in the conditions of sturgeon farms.
I. Kononenko   +5 more
doaj   +1 more source

Effectiveness of mass marking of juvenile sterlet (Acipenser ruthenus) with alizarin red S stain on field detection

open access: yesFisheries Management and Ecology, Volume 32, Issue 1, February 2025.
Abstract Sterlet (Acipenser ruthenus), one of the last sturgeons in the Danube basin, is regularly stocked in national and international restoration programs, but the efficacy of stocking has not yet been evaluated. Effectiveness of stocking should involve marking and evaluating growth and survival of juveniles.
Martin Šindler   +4 more
wiley   +1 more source

Impacts of Global Warming on Quality of Male Fishes: Evidence From A Meta‐Analysis of Temperature Effects on Sperm Motility Kinematics

open access: yesReviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT Studies have demonstrated adverse effects of global warming on aquatic ecosystems. However, the effects of increased water temperature (IWT) on fish reproduction are still doubtful in species spawning at low or high temperatures. In this meta‐analysis, we elucidated the effects of global warming on spermatozoa functions, key determinants of ...
Yu Cheng   +8 more
wiley   +1 more source

Chemical induction of haploid gynogenesis in sterlet Acipenser ruthenus [PDF]

open access: yesCzech Journal of Animal Science, 2014
Chromosomal manipulations in sturgeons, particularly gynogenesis, are interesting due to the potential to change female ratio in progeny that can be useful for caviar production. The optimization of UV treatment for induction of gynogenesis is complicated due to high and variable optical density of the milt due to differential spermatozoa concentration,
I. Lebeda, I. Gazo, M. Flajshans
openaire   +2 more sources

The Research Advances in Distant Hybridization and Gynogenesis in Fish

open access: yesReviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT Distant hybridization and gynogenesis are two prevalent breeding techniques for fishes. Drawing from the research achievements of our team and the existing literature, we summarize the reproductive traits and genetic features of fishes derived from distant hybridizations and gynogenesis, and we deduce the fundamental mechanisms of these two ...
Qizhi Liu   +15 more
wiley   +1 more source

EFFICIENCY EVALUATION OF USING DIFFERENT SPAWNING INDUCERS IN THE CONDITIONS OF ARTIFICIAL REPRODUCTION OF STЕRLET (ACIPENSER RUTHENUS L.)

open access: yesRibogospodarsʹka Nauka Ukraïni, 2015
Purpose. To study the efficiency of replacing the preparation of sturgeon hypophyses, which is traditional for sturgeon culture but scarce and expensive, with its carp analogue as well as with preparations, which induce own gonadotrophic function of ...
V. Kovalenko   +3 more
doaj   +1 more source

Comparison of morphological characters between wild and cultured sterlet (acipenser ruthenus l.)

open access: yes, 2012
Sterlet (Acipenser ruthenus L.) populations in the Danube River had experienced severe decline during the 20th century, and have become dependant on stocking measures in significant area of their distribution.
Jarić, Ivan   +6 more
core   +1 more source

Characterization of growth and biochemical composition of sterlet, Acipenser ruthenus L., juveniles from the Dniester population reared in RAS

open access: yesArchives of Polish Fisheries, 2014
A broodstock was created with individuals from the diminishing natural sterlet, Acipenser ruthenus L., population in the upper area of the Dniester basin. Selects and spawners were reared in flow-through tanks with natural thermal regimes.
Khudyi Oleksy   +4 more
doaj   +1 more source

Some morphological peculiarities of the sterlet (Acipenser ruthenus Linnaеus, 1758) in the conditions of intensive rearing in floating cage systems

open access: yesRibogospodarsʹka Nauka Ukraïni, 2019
Purpose. To study peculiarities of the sterlet in the process of intensive rearing of their replacement and brood groups in floating cages installed in water bodies with natural temperature regime. Methodology.
A. Tretiak, M. Pashko, Ye. Kolos
doaj   +1 more source

Genome Manipulation Advances in Selected Aquaculture Organisms

open access: yesReviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT With the rising global demand for seafood and the challenges posed by overfishing and climate change, the aquaculture sector has become increasingly important in providing high‐quality protein for human consumption. Although traditional selection breeding programs have made great strides in genetic improvement of aquaculture species over the ...
Jinhai Wang   +3 more
wiley   +1 more source

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