PERMEABILITY OF STERLET SPERM MEMBRANES (ACIPENSER RUTHENUS L., 1758) FOR WATER MOLECULES / ПРОНИКНІСТЬ МЕМБРАН СПЕРМАТОЗОЇДІВ СТЕРЛЯДІ (ACIPENSER RUTHENUS L., 1758) ДЛЯ МОЛЕКУЛ ВОДИ
Journal Title: Рибогосподарська наука України - Year 2016, Vol 35, Issue 1
Abstract
Purpose. The literature analysis of the results cryopreservation of different fish species highlights a variation of many parameters, in particular the sperm survival rate during the freezing and unfreezing process. The survival capability of spermatozoa may be called the main parameter, which indentifies the efficiency of the entire process of low temperature freezing of reproductive products. Therefore, the goal of this work was to investigate and find the causes of different degrees of fish sperm cryoimmunity, in particular that of starlet, which is a valuable of sturgeon (Acipenser) species. We also studies the possibility to find the optimum ways to improve the efficiency of the survival rate of the defrosted spermatozoa of different fish species for their further use to produce viable offspring. Methodology. The determination of sterlet sperm membrane permeability was performed after carrying out all necessary manipulations with brood males which included: prespawning incubation, hormonal stimulation, determination of sperm maturity degree, obtaining the sperm by stripping. The measurement of sperm membrane permeability for water molecules was performed based on the technique, which had been used earlier to measure carp sperm permeability, but taking account the specific peculiarities inherent to sterlet sperm. Findings. Based on the performed measurements, we determined the sterlet sperm membrane permeability for water molecules with the use of photometric method. The received experimental data show the highest degree of sterlet sperm membrane permeability for water molecules as compared to carp sperm membrane permeability. Originality. As a result of this experiment, we determined for the first time the absolute value of sterlet sperm membrane permeability for water molecules with the use of photometric method as well as compared the results with those obtained during our work with the carp sperm. Practical value. The data obtained during the experimental studies can be used in the practice of sperm cryopreservation for improving the efficiency of the sperm different of fish species during the process of low temperature freezing especially for such commercially valuable fish species as sturgens.
Authors and Affiliations
A. Puhovkin, I. Kononenko, V. Cherepnin, І. Hrytsyniak, Ye. Kopeika
Keywords
Related Articles
- EP ID EP475469
- DOI 10.15407/fsu2016.01.070
- Views 48
- Downloads 0
To the question of rearing brood sterlet (Acipenser ruthenus Linnaеus, 1758) in floating cages at natural water temperatures of the forest-steppe of Ukraine / До питання вирощування плідників стерляді (Acipenser ruthenus Linnaеus, 1758) у плавучих садках за природної температури води лісостепу України
Purpose. To study environmental conditions and individual fish culture parameters in the process of rearing brood sterlet herders in cages at natural temperature regime of water bodies of the forest-steppe zone of Ukrain...
STRUCTURAL CHARACTERISTIC OF ICHTHYOPLANKTON IN A SMALL RIVER FLOWING WITHIN A BAR PLAIN OF THE DNIPRO RIVER / СТРУКТУРНА ХАРАКТЕРИСТИКА ІХТІОПЛАНКТОНУ МАЛОЇ РІЧКИ, ЩО ПРОТІКАЄ В МЕЖАХ великоГРИВИСТОЇ ЗАПЛАВИ ДНІПРА
Purpose. Using as an example of a small river, which flows through a bar plain of the Dnipro, to study species composition of the littoral ichthyoplankton, dynamics of its structure during the season and its diversity in...
Commercial-biological characteristics of tulka (Clupeonella cultriventris Nordmann, 1840) of the Dnieper-Bug estuary system / Промислово-біологічна характеристика тюльки (Clupeonella cultriventris Nordmann, 1840) Дніпровсько-Бузької гирлової системи
Purpose. To give biological assessment of the commercial stock of tulka Clupeonella cultriventris (Nordmann, 1840) of the Dnieper-Bug estuary system in the conditions of the reduced Dnieper flow. Methodology. Analysis o...
Effect of mineral betonit on chemical composition of carp (Cyprinus carpio Linnaeus, 1758) muscles / Вплив мінералу бентоніт на хімічний склад м’язів коропа (Cyprinus carpio Linnaeus, 1758)
Purpose. To study the effect of bentonite mineral added to the basic diet of age-1 carps on the content of lipids and their individual classes as well as on the chemical composition of muscles to establish the efficiency...
THE CURRENT METHODS FOR MOLECULAR DIAGNOSTICS OF FISH DISEASES (REVIEW) / СУЧАСНІ МЕТОДИ МОЛЕКУЛЯРНОЇ ДІАГНОСТИКИ ЗАХВОРЮВАНЬ РИБ (ОГЛЯД)
Purpose. The methods of molecular diagnostic (MMD) gradually become widespread in modern fish farming. MMD contain a wide variety of specific approaches, each of which has distinct limits of their possible applications a...