The article presents experimental data on the use of pyobacteriophage in the cultivation of two-year-olds of red tilapia. It was found that bacteriophages during fish rearing improves fish-breeding and biological indicators, expressed in an increase in weight gain. The obtained morphobiochemical blood parameters indicate the absence of physiological changes in the organism of the farmed fish.
The efficiency of modern aquaculture largely depends on the properties of the feed used. High-quality compound feed should be used by the body to the maximum extent, stimulate its growth and development, and contribute to the environmental safety of the food products produced. To obtain additional gains in body weight, increase the digestibility and assimilability of feed, stimulate nonspecific immunity and save feed costs, immunobiological preparations based on live bacteria are currently introduced into the composition of feed for animals, including fish. One of the most promising immunobiological preparations based on live bacteria is the probiotic "Ferm-KM" containing phyto-microsorbent particles, live bacillus cells and metabolites: strains Bacillus subtillis, Bacillus licheniformis, complex of lactic acid bacteria and products of their metabolism. The article presents the results of the use of the probiotic "Ferm-KM" in the composition of the production compound feed for sturgeon fish. It was found that when two-year-old Russian sturgeon are grown on a production compound feed with the addition of a probiotic, the fish-breeding and biological parameters of fish increase and the physiological and biochemical parameters of blood improve. The optimal rate of introducing probiotic into the composition of the production compound feed for commercial growing of sturgeon fish is 5 g / kg of compound feed. The effectiveness of introducing a probiotic preparation "Ferm-KM" with an immunomodulatory effect into the composition of compound feed for sturgeon fish has been proved, which helps to increase the linear-weight gain of fish and improve blood parameters.*
The article touches upon the problems of water structure, its unique biological and physical properties that continue to raise a vital interest among the scientists. The of structured water has no admixtures, it has much in common with biological liquids within the cells of animals and plants. Molecules of structured water are not randomly scattered, but stick together to make
a single structure. Following the assessment of the effective use of structured biologically active water, first applied in the course of studying the aquarium fish, a positive effect of structured water on growth rates was noted in trout and carp, as well as in sturgeon (sterlet). Negatively charged structured water takes its biostimulating effect on fish, which can be seen in better surviving, caviar fertilizing, faster growth of young fish, reduced load of pathogenic micro flora on organism of aquatic life. It has been stated that structured water has a positive effect in other areas of agriculture. In poultry farming the effectiveness of structured water can be seen in improved organogenesis and functioning of all organ systems in ducks and chickens, increased productivity and improved quality of grown products, reduced morbidity and, consequently, mortality of poultry using structured water. Application of activated/structured water when raising birds and animals allows minimizing antibiotics, growth stimulants, vitamins and minerals. Treatment of grain and vegetable seeds with structured water before sowing can significantly increase germination, increase productivity and improve products quality.
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