Abstract:
The growth of the world's population poses a number of challenges to fish industry professionals to provide people with a sufficient amount of quality, primarily protein products. Ukraine has a sufficient resource of reservoirs and has potential opportunities for the construction and development of a powerful fisheries complex. This makes it necessary to find ways, first and foremost, to restore inland fishing and increase the productivity of fisheries. One of the ways to solve this problem is to organize a large-scale introduction of valuable fish species into natural and transformed reservoirs. The latter should be based on the annual receipt of a sufficient number of quality and viable young fish. This is not possible without the presence of specialized farms of their own repair and uterine herds, able to ensure effective artificial reproduction of fish. Under this problem, the main result of effective fish farming is the preservation of offspring, their quality and the ability to quickly restore reproductive potential after technological work. One way to overcome this problem may be the use of immunostimulants, which became the basis of our research.
The main purpose of the study was to improve the methods of preserving the offspring of herbivorous fish after factory reproduction, associated with the use of immunostimulants in farms in southern Ukraine. The place of special research was the incubation shop and summer uterine ponds of the State Institution of the Novokakhovka fish factory. The research material was the broodstock of white silver carp grown in the farm. Data are presented as mean values and standard error (x ± SE). Statistical analysis was performed by means of analysis of variance (one-way ANOVA). The research used commonly used methods in fish farming.
The analysis allows us to conclude on the feasibility of treatment of fetuses with the drug as an antimicrobial and stimulant. The use of the experimental immunostimulant Anfluron 2 IU significantly increases the resistance of silver carp breeders after operations on artificial reproduction in the factory. Females of white silver carp injected with immunostimulants showed higher growth and survival throughout the observation period.
