Results 161 to 170 of about 260,916 (195)
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Ig light chain gene in the Siberian sturgeon (Acipenser baeri)
The Journal of Immunology, 1996Abstract Elasmobranch and teleost fish have their Ig light (L) chain loci organized in multiple clusters (VL-JL-CL). The VL segments of teleosts are in opposite transcriptional orientation to the CL genes, suggesting that in teleosts and elasmobranchs there may have been separate evolutionary events leading to this organization.
M, Lundqvist +3 more
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The estrogenic activity of certain phytoestrogens in the siberian sturgeon Acipenser baeri
The Journal of Steroid Biochemistry and Molecular Biology, 1991Various phytoestrogens such as formononetin, daidzein, genistein and equol were synthesized. Their purity was assessed by various analytical techniques including melting point determination, thin-layer chromatography (TLC), infra-red spectra (i.r.
C, Pelissero +4 more
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2017
This chapter aims to explore the state of knowledge about the immune mechanisms in sturgeon with a focus on the Siberian sturgeon (Acipenser baerii), stress factors that can disrupt the immune system and the sources of stimulation. Studies conducted carried out for several decades on sturgeon suggest specificities of their immune system compared to ...
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This chapter aims to explore the state of knowledge about the immune mechanisms in sturgeon with a focus on the Siberian sturgeon (Acipenser baerii), stress factors that can disrupt the immune system and the sources of stimulation. Studies conducted carried out for several decades on sturgeon suggest specificities of their immune system compared to ...
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Variability of the immunoglobulin light chain in the Siberian sturgeon, Acipenser baeri
Developmental & Comparative Immunology, 1999All sturgeon VL segments isolated in this study belong to a single family, VLI, which can be divided into two subfamilies. Of the 79 cDNA clones isolated, 76 belong to the larger subfamily, VLIa, and only 3 clones constitute the smaller subfamily, VLIb.
M L, Lundqvist, L, Pilström
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New extender for cryopreservation of Siberian sturgeon (Acipenser baerii) semen
Cryobiology, 2015The goal of this study was to develop a simple glucose-methanol extender for cryopreservation of Siberian sturgeon (Acipenser baerii) semen. Semen quality was assessed by determining post-thaw sperm motility and fertilizing ability at hatching stage. We tested the effect of glucose concentration (0, 0.10, 0.15, 0.20 and 0.30 M) in a methanol extender ...
S, Judycka +3 more
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Unusual conditions for Siberian sturgeon (Acipenser baerii Brandt) spawning
Journal of Applied Ichthyology, 2006Spawning of Siberian sturgeon A. baerii was induced hormonally using mammalian gonadotropin-releasing hormone analogue GnRHa ([D-Ala(6), Des Gly(10)]-LHRH Ethylamide) in Uruguay (35 degrees S) and results were compared with treatments made in France (45 degrees N). Testosterone, estradiol-17 beta and 17, 20 beta-dihydroxy-4-pregnen-3-one (17, 20 beta P)
Vizziano, Denise +4 more
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Non-contact Doppler radar monitoring of cardiorespiratory motion for Siberian Sturgeon
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012This paper presents the first reported use of Doppler radar to remotely sense heart and ventilation rates of fish. The Radar reported 35 to 40 BPM heart rate and 115 to 145 BPM ventilation rates for Siberian Sturgeon, with agreement from a video reference. Conventional fish vital signs measurements require invasive surgery and human handling--these are
Noah Hafner +2 more
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hsd17b1 is a key gene for ovarian differentiation of the Siberian sturgeon
Molecular Reproduction and DevelopmentAbstractThis is the first work using gonads from undifferentiated, genetically‐sexed Siberian sturgeon describing expression changes in genes related to steroid synthesis and female and male sex differentiation. One factor identified as relevant for ovarian differentiation was the gene coding for the enzyme Hsd17b1, which converts estrone into ...
André Lasalle +3 more
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Nutritional Requirements of the Siberian Sturgeon: An Updated Synthesis
2017Sturgeon aquaculture grows fast with 465% increasing through 2003–2013. Unfortunately, there is no special culture system or nutritional requirements for these valuable species. Among 27 different sturgeon species, Siberian sturgeon Acipenser baerii is one of the best sturgeon fish for culture in different environments with high growth rate and ...
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What Makes the Difference Between the Siberian Sturgeon and the Ponto-Caspian Sturgeon Species?
2017Adaptive features of the Siberian sturgeon connected with species structure (adaptive radiation), population structure, ecology, physiology, reproduction and development in comparison with phylogenetically closely Ponto-Caspian sturgeon related species were analyzed. The adaptive radiation of freshwater Siberian sturgeon unlike anadromous Ponto-Caspian
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