Ecologically clean technologies of young cattle development

Abstract

The article discusses the effectiveness of calf rearing in lightweight buildings in individual cages and in houses for individual keeping from 3 days of his life to 60 days of age. It has shown the advantage of growing young animals using this technology in comparison with the traditional method for group keeping indoors. This method of calf breeding contributes to maintaining the cultivation of full-fledged repair young animals, and ultimately, increasing the efficiency of animal husbandry. Since all experimental groups had a different content system, the dynamics of live weight in age periods helped to reveal the difference in growth rates and developed animals. The data obtained indicate that the weight during the formulation did not differ much in animals of the control I and II of the experimental groups was 36 kg, respectively, 35.7 and 38 kg. At 3 months of age, it amounted to 83, 87.6 and 90.2 kg, respectively. They exceeded their peers in the control group 7.2 kg or 7.99%, 4.6 kg 4.67%, respectively. The average daily increase in 3 months was 626 g, 692 g, 696 g, respectively.

Theoretical study of the accumulation of mechanical mixtures in the engine lubrication system

“…From the above, we analyze changes in the active elements contained in the oil. [5,6,7,8,9,10,11,12].…”

Development of fish feed distributor device

“…In Uzbekistan, meat products are mainly produced at the expense of cattle, sheep and poultry, and their development is underway on a large scale. Large-scale scientific and practical research has been carried out, and devices and equipment have been developed that allow the mechanization of the processes of preparation and distribution of feed for cattle, sheep and poultry [1][2][3][4][5][6]. Nevertheless, there is a demand for fish meat among the population, and in order to satisfy this demand, attention is paid to the development of fisheries.…”

Development of a seeder design for precise sowing of carrot seeds on a ridge

“…Until recently, agriculture has been mainly devoted to the cultivation of cotton and grain, and these crops, occupied the main part of the arable land in recent years, because of diversification of agriculture [1][2][3][4][5]. In addition to cotton and grain growing, great attention is being paid to the development of vegetable growing, policing, horticulture, animal husbandry, beekeeping, and fishing in the republic's agriculture [6][7][8][9][10][11][12][13][14]. Since cotton and grain were the dominant crops in Uzbekistan in the past, scientific and research work was carried out on the development of technologies and machines for tillage, planting, inter-row cultivation and harvesting or picking, which are mainly used in their cultivation, and a number of technologies and machines were created [15][16][17][18][19][20].…”