Technological aspects of intensive technologies using in the commercial cultivation of common carp (Cyprinus carpio (Linnaeus, 1758))

Purpose. To study the effect of the feed factor on the functional state of the carp body (Cyprinus carpio L.) under the conditions of growing in a model recirculation system of complex purpose with the use of intensive technologies. Methodology. The experimental part of the study was performed at the laboratory of the Scientific and Research Lab “Aquaculture Perspectives”, Scientific and Research Laboratory of “Physiological and Biochemical Studies named after S. Pentelyuk”, Scientific and Research Laboratory of Ecological and Chemical Analysis and Water Monitoring of the State Education Institution “Kherson State Agrarian and Economical University” and at the laboratory of the “Kherson Production and Experimental Hatchery of Ordinary Fish Breeding”. Carp growing was carried out in the model installation of tanks recirculation type with using intensive technologies, alternative energy sources, method of gas-discharge visualization. During the experiment following was performed: clinical examination of fish, control of growth rate and weight gain, survival rate, physiological state and morpho-functional parameters of blood in accordance with conventional methods. Findings. The general functional state of the organism of the common carp Cyprinus carpio L. in ontogenesis was investigated against the background of activation of adaptive-compensatory mechanisms, metabolic processes under the influence of the food factor under rearing conditions in a model system for complex purposes in aquaculture. Positive results of analysis of morpho-functional, biochemical parameters of carp blood were obtained when feeding with a feed mixture from natural fodder and biologically active substances. The degree of influence of the fodder factor as a corrector of metabolic processes in the carp organism when growing the marketable mass has been studied. Originality. The conducted analysis of gas-discharge visualization of static GDV-gram parameters of optoelectronic emission of young-of-the-year carp showed differences in functional activity in the organism of fish from the experimental group in relation to the control group, which was also substantiated and argumentative by the parameters of carp blood and development rate. Practical value. The proposed method of feeding carp in the recirculation system contributes to the correction of metabolic processes in their body, which makes it possible to reduce the cost through the use of natural feed, the cultivation of which is introduced into the recirculation system, the formation of a mixture of our own production, using the GDV-method diagnostics of objects and energy-saving elements in technological map.