Title : Experience in using innovations in aquaculture in Ukraine
Abstract:
This research investigated Spirulina Platensis, Chlorella vulgaris and Artemia salina as additional sources of protein and biologically active substances that affect the parameters of the carp body. Additional addition of carp to the diet in the ratio: Spirulina Platensis - 40%, Chlorella vulgaris - 30% and Artemia salina - 30% made an impact on the parameters of carp development. The components were cultured in a bioreactor built into a recirculating aquaculture system. The results showed that after additional feeding of carp with the indicated components, the body weight of one-year carp was higher than the control group by 8.9%, and safety by 3.4%. Body weight two-year carp was greater in the experimental group than in the group where the fish ate the total diet. The difference was 12.1% in body weight and 2.9% in safety. These parameters were significantly lower in fish fed the control diet (P<0.05). This scientific work has demonstrated the additional use of natural food as a method for improving the blood composition of carp: an increase in hemoglobin by 15.5% (P<0.05), erythrocytes by 5.5% in comparison with the control group. Indicators of gas-discharge visualization of a biological object supplemented the obtained result.
It was found that the presented model installation for the introduction of a "demo-aqua farm" provides for the effective use of hydrobionts Oreochromis Mossambicus and Florida Red, as well as additional cultivation objects Ocimum basilicum L, Mentha × piperita L, Thymus vulgaris L., Lactuca sativa L. in aquaponics. The obtained positive results of the functional status of objects against the background of this method of cultivation. The rate of development of the organism of tilapia in dynamics was studied, the differences between the rate of growth of Florida Red and Oreochromis Mossambicus were established. Experimentally, the obtained results of the effective use of the presented model system when growing Oreochromis Mossambicus and Florida Red and cultivating plants demonstrate the correlation of body weight with average daily gains and profile Oreochromis Mossambicus and Florida Red. It is established that in the cultivation of tilapia Oreochromis Mossambicus and Florida Red in the model system active development was observed from 14 to 20 days of age more than twice. The difference in body weight between the two species of tilapia at 20 days of age was 4,5%, while at 30 days of age this percentage was 4,7%. A study of fish growth rates over 60 days showed that the studied rate was higher in Florida red tilapia, the difference was 9,4%. The results of studying the functional state of plants cultivated on the principle of aquaponics in the model system are presented. The obtained indicators demonstrate the positive dynamics of development, pigmentation of cultivated objects. The developed demonstration system is also of social significance, as it can be located on observation decks in order to promote the direction of aquaculture of this format. It is established that heat-loving tilapia is one of the best model objects of cultivation in such system.a
