The experiment was carried out according to the following scheme. In the first group (control), all wheat, barley and corn grains were fed in flattened form, in the second, third and fourth groups 50% of the wheat, barley and corn grain mass (half the daily supply) was prepared in various ways. In the second group, they were sprouted, in the third, they were extruded, and in the fourth, they were comprehensively prepared by sprouting and then extruding. The differences in the specified nutrients between the first and second groups were unreliable and were at the level of 0.9-2.2 relative percent. The extrusion of wheat, barley, and corn grains and their inclusion into the fodder mixture of animals of the third group contributed to an even greater increase in the digestibility of substances in comparison with the first and second groups. The differences amounted to 1.9-3.4% and showed reliable differences in dry matter and nitrogen-free extract substances. In the fourth group of cows fed with a mixture of comprehensively processed grain components, the digestibility of all substances showed a noticeable increase; the difference with control was reliable and amounted to 2.7-5.4 relative percent.
The automatic adaptive feeder for fish feeding in recirculation plants has been developed and tested. It was found that the use of this feeder allowed to increase the yield of fry per 1 m³ by 35% and 13.6%; the yield of fingerlingby 45.9% and 18.5%; in the final period of cultivationby 52.3% and 21.9% in comparison with hand-feeding and traditional auto-feeding without the adaptation function of the autofeeder. Accordingly, using an automatic adaptive feeder, it was possible to obtain by 71.7 kg and 37.6 kg more fish per 1 m³ of recirculating aquaculture system (RAS) during one production cycle than using the existing technology. It helps to make an additional clear profit from the sale of products for 6,702 rubles 88 kopecks from 1 m³ of RAS in comparison with handfeeding and 3,503 rubles 09 kopecks in comparison with automatic feeding without the adaptation system. Keywords-recycling plants for fish farming, RAS, fish automatic feeding, automatic feeder for fish, feeding behavior of fish, sharp-tooth catfish A computer program for the analysis and inspection of chemical composition (ammonium nitrogen, nitrite ions, nitrate ions, oxygen), water temperature and atmospheric
Recipes were developed for compound feeds for boars with replacement of 5% and 10% of natural barley grain with sprouted grain. The use of experimental feeds allowed to increase the volume of boar ejaculate-by 25.5% and 31.9%; sperm concentration-by 18.4 and 20.1%; sperm survival-by 7.7 and 9.2 hours; sperm resistance by 27.0 and 27.8%. The fertilization rate of sows increased by 3.0 and 6.3%, multiplicity-by 3.1 and 4.2%, large-scale fertility remained at the control level. The cost of compound feed increases with the Introduction of sprouted grain, but this increase is economically justified, since the productivity of animals increases. The cost of a dose of sperm from boars is reduced by 2.8 and 3.2 rubles, the number of farrowed sows increases in the experimental groups by 51.8 and 71.4%, respectively, and the cost of one Piglet is lower by 12.4 - 17.5 rubles or 8.6 - 12.6%..
Aquapon technology has a positive effect on the growth of live weight of Clary catfish per 1m3 of the water environment in comparison with ultrasound. As a result, this indicator in the aquapon installation was higher by 456 grams or 1.1% for 45 days ompared to the USV. Profitability cleavage catfish in aquaponic operation installation was 22.8%, which is 1.4% higher than the same indicator of RAS. The combined aquaponic-hydroponic mode of operation of the unit allowed to obtain 8.282 kg of vegetative mass of lettuce plants from 1 m2 of the installation area for 45 days, which is 2.761 kg more than in the traditional aquaponic mode and 0.903 kg more than in the hydroponic mode.
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