The object of research is the development of compound feed recipes from local oilseeds grown in Uzbekistan. The purpose of this study is to correctly compile a feed recipe, determine the quality and protein content of feed and digestibility use rich protein nutritional value in feeding farm animals for fattened cattle to produce a batch of feed. The conditions for obtaining high-quality feed food for wide use in industrial feed production are defined.
Research has been carried out to study the influence of "ProBioKorm Uz", a biologically active feed additive, on the development and physiological characteristics of rabbits of ‘New Zealand’ breed. During the experiment, 2 experimental and a control groups were formed. Adding "ProBioKorm Uz" to the main feed at the rate of 1% and 2% had an increase in experimental group rabbits’ live weight. Average live weight of them was higher by 5,7 %-3.8% than in the control group. Feed units composed 1.59%, dry matter 0.56 kg (3.61%) and crude protein 0.11 kg (3.59%) compared with the control group. Rabbits of experimental groups had higher indicators of erythrocytes concentration by 0.34-1.00 1012/l (10.34-19.53%), leukocytes - by 0.370-0.46 109/l (5.66-8, 06%), as well as a high level of hemoglobin by 7.42-11.08 g/l (6.81-10.08%) and total protein - by 2.40-4.48 (3.64-6, 42%).
The article provides information on the effects of inoculation with nitragin and application of mineral
fertilizers on the microbiological properties of the soil before sowing the seeds of legumes (soybeans,
beans, mungbeans), grown as a secondary crop after winter wheat. At the end of the vegetation
period of repeated crops, it was observed that the amount of microorganisms in the soil increased
compared to the initial indicators, the amount of ammonifiers and oligonitrophils increased, and the
amount of micromycetes and actinomycetes decreased. Before sowing the seeds of legumes
(soybeans, mungbeans, beans) grown as a secondary crop, the amount of ammonifiers, oligonitrophils
and micromycetes increased, and the amount of actinomycetes increased compared to the control
option in the backgrounds treated with nitrogen-fixing bacteria.
This study investigates the effects of supplementing torch ginger flower extract in commercial feed on the nutrition and health of local male ducks. Torch ginger (Etlingera elatior) is known for its potential health benefits due to its rich phytochemical content. Male ducks were fed with commercial feed enriched with torch ginger flower extract, and their growth performance, nutrient utilization, and health parameters were evaluated over a specified period. Results indicate promising outcomes in terms of improved nutrition and health markers among the ducks fed with the supplemented feed. This research sheds light on the potential of torch ginger flower extract as a dietary supplement for enhancing the nutrition of local male ducks and warrants further exploration in poultry nutrition.
This research investigates the impact of concentrate feed and mineral blocks on dairy cattle performance, with a specific focus on density level and milk fat content. Dairy farming is a vital component of the agricultural sector, and optimizing the productivity of cattle is of paramount importance. Through a comprehensive study involving controlled diets, this research assesses how the introduction of concentrate feed and mineral blocks influences cattle density and milk fat content. The findings shed light on practical methods to enhance dairy cattle performance, thus offering insights for farmers and the dairy industry.
This article analyzes the synthesis of the Tenebrio molitor protein (Coleoptera: Tenebrionidae) belonging to a food insect, depending on its nutrient content. Differences in protein synthesis by Tenebrio molitor larvae were shown when wheat bran and flour from the macrophytesLemna minor and Azollacarolina were added. In particular, it was noted that TMO-2 and TMO-6 T.molitor F6 larvae are synthesized on average 31.02% protein in wheat bran, 38.13% in duckweed and 30.87% in azole. It was found that the larvae of variant F6 grown on wheat bran synthesized protein on average 4.79% less than the variant F1 of wheat. F6 larvae grown in duckweed synthesized 7.11% more protein than larvae grown in wheat bran and 0.15% less protein synthesis than larvae grown in azole. It was found that F6 larvae grown in duckweed produce 7.26% more protein than larvae grown in azole. Summarizing these indicators, it was noted that in the body of larvae eating macrophytes insufficient absorption of nutrients, low moisture content in the feed led to their death, egg laying and larvae of variant F6 produced significantly less protein than variant F1. When feeding macrophytes, it is advisable to takeintoaccountits moisture content or add flour based on them to other food sources. It was studied that egg-laying larvae grown on the basis of azole accounted for 38.14%, whereas in duckweed this indicator was 58.38%. It was found that in larvae grown on wheat bran, the percentage of egg-laying is 68.85%. The mortality rate of larvae feeding on wheat bran was 18.22%, in duckweed - 44.63%, in azole - 62.27%, this is due to insufficient moisture in the composition of duckweed and azole (average humidity 3.4-4.2%), relatively high humidity (average humidity 9.58-10.12%) in wheat bran. Survival coefficients of Tenebrio molitor F6 larvae were determined in three different compositions and sources of nutrients with different humidity (wheat bran, Lemna minor and flour Azollacarolina). Tenebrio molitor F6 larvae of the generation of variants TMO-2 and TMO-6 were grown on wheat bran with an average survival rate of 0.79, on duckweed flour - 0.50, on azolla flour - 0.64. It was noted that the survival rate of larvae grown on wheat bran was 15.5% higher than that of larvae grown on azolla, and it is advisable to explain the source not by the protein reserve, but by the amount of moisture in it. It was noted that the moisture content (9.58-10.12%) (protein 15%) in wheat bran was a factor in the high viability of the larvae compared to azolla (protein-27%, humidity 8.2%). Despite the easy protein synthesis in the body of larvae in duckweed flour (protein - 16.1%, humidity - 4.4%) compared to azolla flour, its content is 3.8% lower than that of azolla, due to the fact that survival the larvae in them were lower than in wheat and azolla. Therefore, along with the protein content, moisture is an important factor when choosing a food source. When summing the survival rates of larvae of the Tenebrio molitor F6 generation in the studied nutrient media, the average survival was calculated as 0.96. This means that based on the established ratios of wheat bran, duckweed and azolla flour, it will be possible to create a nutrient medium with a new content, high nutritional value and low cost
Tadqiqotlarda golshtin zotli sigirlarning sut mahsuldorligi birinchi tug‘ishidagi tirik vazniga bog‘liqligi aniqlangan va birinchi tug‘ishida tirik vazni 481 kg hamda undan yuqori bo‘lgan sigirlar yuqori sut mahsuldorligiga ega bo‘lganligi va ularning II laktatsiyada III tajriba guruhidagi sigirlarining sut miqdori I va II tajriba guruhlaridagi tengqurlarinikidan tegishlicha 465,3 kg (P>0,99) va 256,5 kg, sut yog‘i chiqimi 15,6 kg (P>0,999) va 8,4 kg, sut oqsil chiqimi 14,9 kg (P>0,999) va 8,0 kg, 4%-li sut 389,3 kg (P>0,999) va 209,9 kg yuqori bo‘ldi.
Shuningdek tadqiqotlar sigirlarning ozuqani sut bilan qoplash darajasi sut mahsuldorligiga bog‘liqligi va yuqori sut mahsuldorligiga ega III tajriba guruh sigirlari 1 kg tabiiy yog‘lilikdagi sut ishlab chiqarish uchun I va II tajriba guruhlaridagi sigirlarga nisbatan tegishlicha 0,05 ozuqa birligi va 0,02 ozuqa birligi, 1 kg 4%-li sut uchun esa 0,99 ozuqa birligi sarfladi va tengqurlpriga nisbatan 0,04 ozuqa birligi yoki 3,8 foiz; 0,02 ozuqa birligi yoki 1,9 foiz kam sarfladi.
It is known that up to 70% of feed costs in the poultry industry are accounted for by cereal crops, including wheat, barley and corn. These cereals are essential in the sphere of feeding the population and occupy the main position among food crops. The search for new types of grain fodder to partially replace traditional and use them to maintain and increase the productivity of poultry is urgent.
For the first time in the Republic of Uzbekistan the possibility of using the domestic probiotic feed additive "Baktovit" in the diet of rabbits was studied. The positive effect of the additive on the hematological parameters and the state of natural resistance of the rabbit organism was established. The use of the probiotic feed additive "Baktovit" will make it possible to participate in the state import substitution program and will contribute to a higher efficiency of vaccine-preventive and therapeutic measures.
Massive death of bee colonies (collapse) requires a close study of its causes. Scientists make various
proposals, some of them are quite logical, but have no direct justification. In many publications,
pollution of environment by heavy metals is considered as the cause of bee colonies death, since
urban areas are subjected to increased techno genic pollution. Vehicles are the cause of environment
pollution. Exploitation of vehicles results in intensive ejection of heavy metals into the environment
released with exhaust gases and while cars are exposed to the road surface. The combustion of
leaded fuel is accompanied by the release of lead (1 liter of gasoline contains up to 0.5 g of tetraethyl
lead). While combustion of lubricating oils cadmium is released. A large amount of this element is
formed as a result of abrasion of tires on asphaltic concrete. Lead and cadmium, which are highly
toxic, accumulate in soil and vegetation and spread along trophic chains, pose a threat to bees' life.
The influence of a busy highway on the body pollution of honey bees has been studied in this article.
In bees, the least amount of studied pollutants has been accumulated in the head sections, the
largest in rectum (hind gut). A relatively large amount of lead Pb and cadmium Cd found in the body
This article presents the results of the study of drought resistance of raspberry varieties. In this, drought resistance was evaluated by studying the water deficit, amount of water and water loss abilities of leaf tissues before and after irrigation in June, July, and August. In the leaves of raspberry varieties, water deficit and water loss capacity were higher at 1 pm in July, while leaf amount of water was the lowest at 1 pm in July.
The article discusses the prospects for the development of the heat and power industry in the Republic of Uzbekistan. It was noted that according to the development concept of the Republic of Uzbekistan until 2035, the expected growth in electricity consumption in the Republic will be approximately from 2000 to 3156 kWh/person. This growth in electricity production is planned to be achieved by increasing the production of renewable energy sources (RES) in the structure of generating capacities from 12.7% to 19.7% by 2025, upgrading existing plants, building new combined-cycle gas plants (CCGPs) and further construction of a nuclear power plant (NPP).
Given that in the coming years to 85% of the thermal and electric energy in the Republic is generated in thermal power stations that use natural energy resources such natural gas, coal and fuel oil, and also given the greater depreciation of equipment stations and as a consequence their low efficiency, the authors emphasize the importance of using to generate these types of energy modern combined cycle technology.
It is indicated that currently there is a wide technical and industrial cooperation of the main foreign gas turbine manufacturers in the world. In the world, the main manufacturers of such equipment are three companies - General Electric (USA), Siemens - Westinghouse (Germany - USA) and Alstom (France, Switzerland, Sweden).
Variants of combined steam and gas turbine units (GTU) have been developed. As a result of the GTU operation, the gases used in the installation were proposed to be used in the steam power cycle.
Advantages of CCGP: combined-cycle plants can achieve an electric efficiency of more than 60 %. For comparison, the efficiency of steam power plants operating separately is usually in the range of 33-4 %, for gas turbine plants - in the range of 28-42 %; low cost per unit of installed capacity; combined-cycle plants consume significantly less water per unit of electricity generated compared to steam power plants; short construction time (9-12 months); there is no need for constant fuel supply by railway or sea transport; compact dimensions allow you to build directly at the consumer (factory or inside the city), which reduces the cost of power lines and transportation of electric energy; more environmentally friendly compared to steam power plants.
The disadvantages of CCGP include: the need to filter the air used for fuel combustion; restrictions on the types of fuel used. As a rule, natural gas is used as the main fuel, and diesel fuel is used as a backup fuel. The use of coal as fuel is only possible in installations with in-cycle coal gasification, which greatly increases the cost of building such power plants. This implies the need to build expensive fuel transportation communications - pipelines; seasonal capacity restrictions. maximum performance in winter.
However, despite the listed disadvantages of CCGP, at this stage of development of the Republic, combined-cycle plants can produce electricity with a high efficiency, thereby significantly saving natural gas. Approximate calculations show that the technical re-equipment of the domestic heat power industry using gas-turbine and combined-cycle technologies and environmental protection equipment developed in the world will allow saving natural gas annually in the amount of approximately 1010 m3, which in monetary terms will amount to 3 trillion soums. In General, it is concluded that
1.to solve the country's energy problems, it is necessary to accelerate the introduction of REI, technically re-equip the domestic heat and power industry using gas turbine and combined-cycle technologies developed in the world.
2.in power plants where the fuel balance contains a large proportion of fuel oil or coal, but there is also natural gas, in an amount sufficient to power the gas turbine, it may be advisable to thermodynamically more efficient gas turbine superstructures.
3.to implement the tasks of modernization and reconstruction, involve the private sector in the energy sector on the basis of public-private partnership. Create the necessary regulatory framework and technical infrastructure.
The article highlights the results of research work on the study of the coefficient of milk production and the payment of feed products of first heifers of different ethological types.