Comparative results of rearing pure species and hybrid forms of the Siberian and Russian sturgeons

In the paper, rearing results and comparative assessment of interspesific hybrids and pure species of the Siberian sturgeon Acipenser baerii (Brandt, 1869)and the Russian sturgeon Acipenser gueldenstaedti (Вrandt, 1833) have been provided at various stages of ontogenesis by combinated cultivation under RAS conditions and in an industrial uniflow tank farm. Investigations were carried out at the “Konakovski” department of the Branch on Freshwater Fisheries FSBSI “VNIRO” (VNIIPRKh). To obtain the experimental material breeders were used of the Siberian sturgeon from the sixth domestication generation and of the Russian sturgeon from the third one. Fish fry, switched to mixed feeding ongrowing and further rearing, were cultivated under production conditions in normal technological mode and separately from each female using different granulated mixed feeds (BioMar firm) of different recipes. Up to 41 day-age fish were reared in RAS, further in race-ways and tanks of the shop with uniflow water-supply. The middle water temperature was 16ºC during the all period of experimental works (557 days). Best results of the mass accumulation showed interspecific LS×RS hybrids, at the second position seemed to be RS×LS hybrids. Pure species of the Siberian and Russian sturgeons showed practically similar middle weights to the end of the experimental stage. As a result of the histological analysis, it has been ascertained that gonads of pure species of one-year-old Siberian and Russian sturgeons and their hybrids had comparatively the same picture of sex cells development, but some advantage possessed the Siberian sturgeon and LS×RS hybrid. Thus, malesʼ cysts and femalesʼ nests of one-year-old fish show multiple mitotic divisions of sex cells (spermatogonia and oogonia) what corresponds with the first stage of gonades maturity in males and the first one and the beginning of the second ones in females.

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Functional state of the organism of the hybrid Russian sturgeon × Siberian sturgeon (Acipenser gueldenstaedtii × Acipenser baerii) after winter in cages in Volga Delta

Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries) ◽

10.33920/sel-09-2103-05 ◽

2021 ◽

pp. 60-69

Author(s):

Svetlana Sergeevna Astafyeva ◽

Alexander Robertovich Lozovskiy

Keyword(s):

Blood Glucose ◽

Carbohydrate Metabolism ◽

Functional State ◽

Total Protein ◽

Siberian Sturgeon ◽

Russian Sturgeon ◽

Acipenser Baerii ◽

Glucose Content ◽

Volga Delta ◽

Acipenser Gueldenstaedtii

Two-year-olds (15 individuals) and five-year-olds (15 individuals) of the Russian sturgeon × Siberian sturgeon (Acipenser gueldenstaedtii × Acipenser baerii) hybrid, kept in net cages in the Volga delta, were studied after wintering in order to establish the functional state of the organism according to the complex of indicators of the erythron system and metabolism substances. The results of the performed study found that the erythron system in five-year-olds is characterized by a higher content of erythrocytes and blood hemoglobin (0.58 ± 0.01×10 12 l –1 and 64.98 ± 1.29 g/l, respectively), compared with two-year-olds (0.49 ± 0.02×10 12 l –1 and 64.98 ± 1.29 g/l, respectively).The serum iron content in both groups was the same. A higher content of total protein and albumin in the blood, as well as a greater activity of ALT were found in five-year-olds, compared with two-year-olds. Thus, the content of total protein and albumin in blood serum in five-year-olds was at the level of 48.23 ± 1.54 and 21.58 ± 2.34 g/l, respectively, and in two-year-olds — 32.42 ± 0.92 and 13,84 ± 0.61 g/l, respectively (p < 0.05). The activity of serum ALT in five-year-olds was 1.07 ± 0.06 μkat/l, and in two-year-olds — 0.85 ± 0.03 μkat/l (p < 0.01). Serum cholesterol in five-year-olds (3.94 ± 0.04 mmol/l) and two-year-olds (4.4 ± 0.08 mmol/l) did not differ significantly (p > 0.05). The content of serum triglycerides in five-year-olds (4.50 ± 0.49 mmol/l) and in two-year-olds (5.36 ± 0.45 mmol/l) did not differ significantly (p > 0.05). The study of carbohydrate metabolism revealed a pronounced variability in the glycemic index in the younger age group (coefficient of variation 44.7 %) with an average blood glucose value of 2.69 ± 0.31 mmol/l. The blood glucose content of five-year-olds was higher than that of two-year-olds — 3.84 ± 0.24 mmol/l (p < 0.05). The established parameters of variation and the age specificity of the indicators of the erythron system, protein, lipid and carbohydrate metabolism can be used to assess the state of physiological adaptation of the hybrid after wintering in cages in the Volga delta.

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

Czech Journal of Animal Science ◽

10.17221/6861-cjas ◽

2013 ◽

Vol 58 (No. 7) ◽

pp. 313-320 ◽

Cited By ~ 21

Author(s):

A. Shaliutina-Kolešová ◽

I. Gazo ◽

J. Cosson ◽

O. Linhart

Keyword(s):

Superoxide Dismutase ◽

Glutathione Peroxidase ◽

Glutathione Reductase ◽

Seminal Plasma ◽

Brook Trout ◽

Siberian Sturgeon ◽

Russian Sturgeon ◽

Thiobarbituric Acid Reactive Substance ◽

Acipenser Baerii ◽

Carbonyl Protein

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 Acipenser baerii, and sterlet Acipenser ruthenus) fishes. No differences were found between seminal plasma and spermatozoa in the level of thiobarbituric-acid-reactive substance (0.24 ± 0.08 to 0.33 ± 0.04 nmol/mg proteins) in Russian sturgeon, Siberian sturgeon, and sterlet. Carbonyl protein concentration was significantly higher in spermatozoa than in seminal plasma of all studied species. Analyzed antioxidants included superoxide dismutase, glutathione reductase, and glutathione peroxidase activity. Significant differences (P < 0.05) were detected between seminal plasma and spermatozoa in total superoxide dismutase (SOD) and glutathione reductase (GR). Total glutathione peroxidase (GPx) activity was significantly higher in brook trout (12.56 ± 3.23 mU/mg proteins) and Russian sturgeon (11.56 ± 3.12 mU/mg proteins) spermatozoa compared to seminal plasma (6.81 ± 1.56 mU/mg proteins in brook trout and 9.56 ± 3.12 mU/mg proteins in Russian sturgeon). This study provides new data on oxidant and antioxidant balance between spermatozoa and seminal plasma that may be of value in the development of methods for artificial reproduction of teleost and chondrostean species.  

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Comparative coelomic fluid composition of sterlet sturgeon Acipenser ruthenus Linnaeus, 1758, Siberian sturgeon Acipenser baerii Brandt, 1869, and Russian sturgeon Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833

Journal of Applied Ichthyology ◽

10.1111/jai.13184 ◽

2016 ◽

Vol 32 (5) ◽

pp. 820-824 ◽

Cited By ~ 6

Author(s):

M. A. M. Siddique ◽

H. Niksirat ◽

O. Linhart

Keyword(s):

Siberian Sturgeon ◽

Russian Sturgeon ◽

Coelomic Fluid ◽

Fluid Composition ◽

Acipenser Baerii ◽

Acipenser Gueldenstaedtii ◽

Acipenser Ruthenus

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Influence of interspecific hybridization on fitness-related traits in Siberian sturgeon and Russian sturgeon

Czech Journal of Animal Science ◽

10.17221/165/2018-cjas ◽

2019 ◽

Vol 64 (No. 2) ◽

pp. 78-88 ◽

Cited By ~ 5

Author(s):

S. Shivaramu ◽

D.T. Vuong ◽

M. Havelka ◽

H. Šachlová ◽

I. Lebeda ◽

...

Keyword(s):

Body Weight ◽

Survival Rate ◽

Interspecific Hybridization ◽

Siberian Sturgeon ◽

Russian Sturgeon ◽

Cumulative Survival Rate ◽

Pure Species ◽

Cumulative Survival ◽

Average Body ◽

Average Body Weight

Polyploidy in sturgeons makes them highly susceptible to interspecific hybridization, and these interspecific hybrids have been described in nature as well as in captivity. Nevertheless, the fitness-related traits between sturgeon hybrids and pure species have been poorly compared as yet. In the present study, we compared the reproductive parameters such as fertilization rate and hatching rate, growth traits and genetic polymorphism in the artificially produced hybrids of the Siberian sturgeon (Acipenser baerii) and Russian sturgeon (A. gueldenstaedtii) with their purebreds. Fertilization and hatching rates were found to be significantly higher in Siberian sturgeon (♀) × Russian sturgeon (♂) hybrid group compared to purebreds. The highest cumulative survival rate was determined in purebred groups until 151 days post-hatch (dph); however, this trend changed and Russian sturgeon purebred showed the lowest cumulative survival rate (0.21%) by 913 dph. Similarly, the lowest average body weight was recorded in Russian sturgeon purebred group (264 g). In contrast, the highest average body weight was recorded in Russian sturgeon (♀) × Siberian sturgeon (♂) hybrids (435.3 g) and the highest cumulative survival rate was recorded in Siberian sturgeon (♀) × Russian sturgeon (♂) hybrids (12.32%) by 913 dph. No significant differences were found at heterozygosity levels among studied crosses. Our results showed that studied sturgeon hybrids had higher survival and growth if compared with the purebreds under provided hatchery conditions.

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Comparative study of haematological parameters of three sturgeon species in recirculating aquaculture system

Indian Journal of Fisheries ◽

10.21077/ijf.2017.64.1.62577-15 ◽

2017 ◽

Vol 64 (1) ◽

pp. 87 ◽

Cited By ~ 1

Author(s):

Nejdet Gultepe ◽

Marina Sazykina ◽

Ivan Sazykin ◽

Adem Yavuz Sonmez ◽

Ludmila E. Khmelectsova ◽

...

Keyword(s):

Haemoglobin Concentration ◽

Siberian Sturgeon ◽

Russian Sturgeon ◽

Haematological Parameters ◽

Recirculating Aquaculture System ◽

Acipenser Baerii ◽

Stellate Sturgeon ◽

Recirculating Aquaculture ◽

Aquaculture System ◽

Sturgeon Species

The aim of this study was to evaluate and compare the haematological parameters of cultured Russian sturgeon (Acipenser gueldenstaedtii), stellate sturgeon (Acipenser stellatus) and Siberian sturgeon (Acipenser baerii) in recirculating aquaculture system. Total erythrocytes, thrombocytes, red blood cell distribution, monocytes, basophils as well as haemoglobin levels of stellate sturgeon differed significantly from that of the other two species (p<0.05). Leukocyte and lymphocyte levels of Siberian sturgeon were significantly higher than in stellate sturgeon and Russian sturgeon (p<0.05). Eosinophil percentages of Siberian sturgeon were significantly lower than stellate sturgeon and Russian sturgeon (p<0.05). Haematocrit levels of stellate sturgeon differed from Siberian sturgeon (p<0.05), but no differences between Siberian and Russian sturgeons were found. Neutrophil, mean cellular haemoglobin and mean cellular volume and mean cellular haemoglobin concentration levels did not differ significantly between the three sturgeon species (p>0.05). The information generated may help in monitoring health status and to adopt better management strategies in culture systems.

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