Results 31 to 40 of about 1,200 (206)

NEW BIOTECHNOLOGICAL METHODS FOR CRYOPRESERVATION OF REPRODUCTIVE CELLS OF STURGEON

open access: yesЮг России: экология, развитие, 2016
The aim of the research is to increase the survivability of reproductive cells of sturgeon at cryopreservation and developing reliable technology suitable for use on an industrial scale.Methods.
E. N. Ponomareva   +3 more
doaj   +1 more source

Comparison of oxidant and antioxidant status of seminal plasma and spermatozoa of several fish species

open access: yesCzech Journal of Animal Science, 2013
Oxidant and antioxidant activity in seminal plasma was compared with that in spermatozoa of teleost (common carp Cyprinus carpio and brook trout Salvelinus fontinalis) and chondrostean (Russian sturgeon Acipenser gueldenstaedtii, Siberian sturgeon ...
A. Shaliutina-Kolešová   +3 more
doaj   +1 more source

Two New Sturgeon Species are Susceptible to Acipenser Iridovirus European (AcIV-E) Infection

open access: yesPathogens, 2020
We report the first case of Acipenser iridovirus European (AcIV-E) infection in starry sturgeon (Acipenser stellatus) and in sterlet (A. ruthenus) reared in Northern Italy. During 2018, mortality began in A. stellatus and A.
Davide Mugetti   +7 more
doaj   +1 more source

Effects of starvation and feeding strategies on hematological and biochemical indices in Russian sturgeon Acipenser gueldenstaedtii [PDF]

open access: yesتغذیه آبزیان, 2021
The effects of feeding strategies on cytological and biochemical indices in juvenile Russian sturgeon were studied. For this, 180 Russian sturgeons (77 ± 0.33 g) were stocked in three treatments with 20 fish in each tank and three replicates.
Mahmoud Alizadeh Afshar   +2 more
doaj   +1 more source

Morphological parameters of the digestive system of Russian sturgeon (Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833) fry under exposure to dry baker's yeasts as an additive to the basic feed

open access: yesRibogospodarsʹka Nauka Ukraïni, 2019
Purpose. To analyze the effect of different concentrations of dry inactivated baker's yeasts on the morphological parameters of the digestive system of Russian sturgeon fry, using enterocytes and hepatocytes as an example, to determine the optimal ...
M. Simon   +3 more
doaj   +1 more source

MORPHOPHYSIOLOGICAL PARAMETERS OF SOME STURGEON SPECIES (ACIPENSERIDAE, ACIPENSERIFORMES) OF DIFFERENT AGE GROUPS REARED IN AQUACULTURE

open access: yesRibogospodarsʹka Nauka Ukraïni, 2015
Purpose. To study some morphometric parameters, protein and lysozyme content in organs and serum in several sturgeon species reared in aquiculture at the ages of 3, 8 and 18 months, and to investigate the specific and age distribution of lysozyme in fish
L. Kurovskaya, V. Lysenko, S. Neborachek
doaj   +1 more source

Monitoring of adaptive potential by functional loads and feeding regime of sturgeon juveniles [PDF]

open access: yesE3S Web of Conferences, 2020
The article presents the results of research on the physiological and biochemical state of sturgeon juveniles using various functional loads at the early stages of post-embryonic development of sturgeon raised on an experimental diet in the presence of ...
Lagutkina Lina   +4 more
doaj   +1 more source

Theoretical Estimate of Energy Balance and Nutritional Needs of the Population of Russian Sturgeon Acipenser gueldenstaedtii in the Caspian Sea

open access: yesCroatian Journal of Fisheries, 2019
Individual and group annual rations of Russian sturgeon Acipenser gueldenstaedtii are calculated on the basis of models describing the energy balance and dynamics of the number of fish generations with natural mortality depending on age. The structure of
Zykov Leonid Alexandrovich   +5 more
doaj   +1 more source

Distribution and genetic diversity of sturgeons feeding in the marine area of the Danube Delta Biosphere Reserve [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2013
The NW Black Sea basin supports sympatric population of beluga (Huso huso), stellate sturgeon (Acipenser stellatus) and Russian sturgeon (A. gueldenstadetii). These ecologically similar fish exhibit varying life strategies during their extended juvenile
HOLOSTENCO Daniela   +4 more
doaj   +1 more source

Analysis of exterior indices of Russian sturgeon juveniles grown at sturgeon fish factories of the Astrakhan region

open access: yesVeterinaria i kormlenie, 2023
The aim of our work was to assess the exterior features of Russian sturgeon juveniles grown at sturgeon fish factories (SFF) of the Astrakhan region. In the process of research, samples of juveniles, obtained from six factories, which are conditionally divided into six groups, were studied: group I - Zhitninsky SFF, group II - Aleksandrovsky SFF ...
A.V. Brigida, A.S. Elizarova
openaire   +1 more source

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