Efficiency of Various Technologies for Growing and Fatting Young Cattle in Light Buildings

The article discusses the effectiveness of bull-calves grown in the "cold" way of keeping at the age of 18 months in terms of live weight exceeded their peers in the control group by 35.5 and 30.1 kg or 7.73 and 6.63%

Efficiency of Various Technologies for Growing and Fatting Young Cattle in Light Buildings

The article discusses the effectiveness of bull-calves grown in the "cold" way of keeping at the age of 18 months in terms of live weight exceeded their peers in the control group by 35.5 and 30.1 kg or 7.73 and 6.63%

Analysis of Ground Feed in a Drum Grinder

In Uzbekistan, special attention is paid to the development of livestock, poultry and fish farming. In the ration of animals, green fodder obtained by cutting green stalks corn, alfalfa and other feed crops has a special place. For high-quality chopping of stalks with the required cutting length for each type of animal, a chopper has been developed with a simple design for chopping green feed.Testing of the chopper work, carried out at an engine speed of 2800 rpm, a cutting drum rotation speed of 950 rpm and in two rotations of the feed rollers 10 rpm and 20 rpm with an average length of alfalfa stalks 71.6 cm and an average length of corn stalks 216.4 cm, showed that at a feed roller rotation speed of 10 rpm the average cutting length of the stalks was 10.6 mm, and at a feed roller rotation speed of 20 rpm - 17.6 mm. It can be seen from the data that with a twice increase in the feed roll speed, the cutting length increases 1.66 times, which confirms the theoretical assumptions obtained

Analysis of Ground Feed in a Drum Grinder

In Uzbekistan, special attention is paid to the development of livestock, poultry and fish farming. In the ration of animals, green fodder obtained by cutting green stalks corn, alfalfa and other feed crops has a special place. For high-quality chopping of stalks with the required cutting length for each type of animal, a chopper has been developed with a simple design for chopping green feed.Testing of the chopper work, carried out at an engine speed of 2800 rpm, a cutting drum rotation speed of 950 rpm and in two rotations of the feed rollers 10 rpm and 20 rpm with an average length of alfalfa stalks 71.6 cm and an average length of corn stalks 216.4 cm, showed that at a feed roller rotation speed of 10 rpm the average cutting length of the stalks was 10.6 mm, and at a feed roller rotation speed of 20 rpm - 17.6 mm. It can be seen from the data that with a twice increase in the feed roll speed, the cutting length increases 1.66 times, which confirms the theoretical assumptions obtained

Determination of Indicators Reflecting the General State of Labor Productivity of Labor Resources in Agriculture

The article presents indicators for determining the level of use of labor resources, reducing the period of seasonal labor of labor resources in agriculture, organizing small enterprises for industrial overproduction of agricultural products, organizing storage rooms for agricultural products, reflecting the general state of labor productivity, as well as conclusions on the effective use of labor productivity

MEAT PRODUCTIVITY OF COLD RAISED RED STEPPE BREED

The article discusses the effectiveness of growing young cattle in light-weight premises in individual cages and in houses for individual maintenance from 3 days of life to 60 days of age and then in open areas with shady canopies by the "cold" method in all age periods differed from peers higher energy growth. The results obtained allowed a significant advantage in terms of meat productivity of bulls. Their superiority over analogues grown and indoors was 31.2 kg before slaughter live weight, 19.3 kg of internal fat, 2.57 kg, slaughter weight, 22.25 kg, which led to a higher slaughter yield

MEAT PRODUCTIVITY OF COLD RAISED RED STEPPE BREED

The article discusses the effectiveness of growing young cattle in light-weight premises in individual cages and in houses for individual maintenance from 3 days of life to 60 days of age and then in open areas with shady canopies by the "cold" method in all age periods differed from peers higher energy growth. The results obtained allowed a significant advantage in terms of meat productivity of bulls. Their superiority over analogues grown and indoors was 31.2 kg before slaughter live weight, 19.3 kg of internal fat, 2.57 kg, slaughter weight, 22.25 kg, which led to a higher slaughter yield

A theoretical method of the reception of blue stem feed by the feeders and transfer to the grinding drum

Uzbekistan pays a lot of attention to fisheries, poultry and animal husbandry. In fish farming, poultry and livestock rearing, it has been recommended to give green feed as a supplementary feed, which reduces the accumulation of excess fat in fish. In this regard, a grinder was produced for cutting plants with blue content. The number of rotations of the feeders was studied theoretically and experimentally in order to meet the demand of the prepared feeds. According to the theoretical research, the cutting length of blue stalk feed is achieved by changing the number of revolutions of the shredder drum depending on the feed speed Vuz and the number of blades in the drum N p , and the number of revolutions of the feeder blades when the feed is transferred at an angle of 27O is 101-207 r/ in the range of min, when the number of blades is in the range of 4-6 pieces, it is recommended that the number of rotations of the shredder drum be greater than 1358 r/min and 1478 r/min to ensure a cutting length of up to 10 mm

Wheat harvesting by combine with GPS receiver and grain sensor

This research describes the result of study and analyze the working process of the harvester combine with GPS receiver and grain level sensor in wheat harvesting. GPS receiver and grain level sensor showed that the combine harvester was working with what level of velocity in the real time regime and how much grain was being uploaded into grain tank. According to results when the yield increased from 2.62 t/ha to 6.22 t/ha, because of decreasing the work-velocity of the combine harvester, the work efficiency of the combine harvester decreased from 1.96 ha/hour till 1.30 ha/hour, and grain loss rose from 2.03 per cent till 3.76 per cent. In the field where the weeds had covered 16.8 per cent, the work efficiency of the combine was 1.74 ha/hour, in another field where weeds level was 56.7 the work efficiency of the combine decreased almost 1.7 times, made up 1.07 ha/hour, the grain loss was observed that it increased from 2.1 per cent till 7.42 per cent. When the moisture of the cereal decreased it was defined that the combine work efficiency increased, however the rate of grain loss in the header rose too

Preface

The Overview is devoted to the main directions and results of the II International Conference “ETESD - 2023” held in Tashkent on 13-15 September 2023. It describes the main directions and gives the details about the participants and the proceedings