RESULTS OF USING THE COMPLEX MEDICATION "GAMAVIT" FOR INCREASING THE SURVIVAL RATE OF STURGEON
Journal Title: Вестник Астраханского государственного технического университета. Серия: Рыбное хозяйство - Year 2013, Vol 0, Issue 2
Abstract
"Gamavit" is one of the medications, relating to biologically active agents. "Gamavit" contains a complex of the vitamins and the amino acids and possesses not only immune-modulating properties, but also anti-inflammatory action because of which it optimizes exchange processes in an organism of animals. In the conditions of aqua complex of the scientific base of the Southern Scientific Center of Russian Academy of Sciences researches for the purpose of studying the influence of this preparation on a physiological condition and biochemical structure of the body of Lensky sturgeon at early stages of ontogenesis are conducted. Treatment of fertilized eggs with the preparation was carried out within 3 minutes before an incubation. Diluted preparation doses 0.2; 0,5 and 1 mg/l were investigated. After treatment fertilized eggs were placed at once into incubatory devices. In all tested groups a high percent of survival of eggs (88–93 %) in comparison with the control group (82 %) was fixed. The weight of free embryos in all the tests was above control by 2.5–3.5 %, the percent of survival of larvae, during their changing to active feeding, exceeded indicators of the control group (66–73 and 54 % respectively). The use of "Gamavit" for Lensky sturgeon eggs’ treatment before incubation allowed improving the indicators of fishes at all stages of early postembryogenesis. The optimum dosage according to the results of the experiment was 0.5 mg/l with an exposition of 3 min. Such a dose promoted an increase in weight of free embryos by 3.5 %, a survival of larvae during their changing to active feeding by 18 % in comparison with the control group and an increase in survival of fry at further cultivation to 95 %.
Authors and Affiliations
Ponomareva Nickolaevna , Kovaleva Vyachislavovna, Stepanova Nickolaevna , Kondratova Alekseevna
Keywords
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