Volgograd Region Research Articles

Efficacy and safety of favipiravir and remdesivir in COVID-19 patients: Clinical data

Aim. To evaluate the efficacy and safety of favipiravir and remdesivir in the infectious disease hospital of the Volgograd region in 2022. Materials and methods. In total, 559 medical records of patients prescribed favipiravir or remdesivir in 2022 were studied. Long-term results of the drug use and disease outcomes after discharge or transfer to another medical institution were assessed using the Federal registry of people with COVID-19. Results. Favipiravir was more frequently prescribed in mild cases of the disease. After excluding patients without signs of lung injury from the analysis, there were no significant differences in mortality and improvement. Patients receiving favipiravir had lower odds of ALT elevations above 5 upper limits of normal and developing drug-induced liver injury with a possible RUCAM score compared with patients receiving remdesivir (OR = 0.40, 95CI 0.20–0.80 and OR = 0.30, 95 CI 0.08–1.08). Conclusion. The limited experience of the use of favipiravir for COVID-19 necessitates further research into its efficacy and safety, particularly when prescribing warfarin and high doses of direct anticoagulants simultaneously.

Analysis of epidemiological and clinical manifestations of foodborne botulism in the Volgograd region

Aim. To analyze the situation regarding manifestations of foodborne botulism in the Volgograd region in the 2005–2023 period.Materials and methods. A retrospective analysis of 158 records of hospital patients with a diagnosis of foodborne botulism was carried out. The epidemiological data under analysis included transmission factors and outcomes. The clinical data under analysis were duration of the incubation period, severity of clinical manifestations at the time of admission and during the course of the disease, severity of changes in laboratory parameters, studies of biological material for the presence of botulinum toxin. Statistical data were processed using the MS Excel and Stastica 10.0 MS Office software packages. Results. Predominant sporadic cases of botulism were identified. The leading factors of infection transmission and the predominant type of botulinum toxin in the Volgograd region in the period from 2005 to 2023 were determined.Conclusion. Physicians and other specialists working in outpatient facilities and hospital emergency departments should maintain updated knowledge about this severe food bacterial poisoning.

Monitoring the frequency and risk factors of birth of children with congenital cleft lip and palate in the Volgograd region

The results of a study of the frequency, prevalence, structure, and probable risk factors of congenital cleft lip and palate (CCLP) in the Volgograd region for 2010–2021 are presented. There were no dynamics of increase or decrease in the birth rate of children with congenital cleft lip and palate. Over the past decade, the birth rate of children with CCHD varied from (1.25 ± 0.35) to (1.72 ± 0.41) per 1000 live births. Risk factors for the formation of CCLP in the form of an infectious disease suffered by the mother in the first trimester of pregnancy and taking drugs have been confirmed.

Effectiveness and safety of olokizumab and levilimab in patients with COVID-19 in 2022: a cohort study

A single-center observational cohort study of the use of levilimab and olokizumab in patients with COVID-19 was conducted. Purpose was to evaluate the effectiveness and safety of olokizumab and levilimab in the infectious diseases hospital of the Volgograd region in 2022. Materials and methods: We analyzed 182 medical records of patients who were prescribed genetically engineered biological drugs in 2022. Long-term results of the use of drugs and disease outcomes after discharge or transfer to another medical fascility were assessed using the federal register of people with COVID-19. Results: There were no significant differences in the effectiveness of levilimab and olokizumab. The chance of detecting signs of bacterial infection/sepsis was significantly higher by 2.7 times in patients receiving levilimab compared with olokizumab (OR=2.7, 95 % CI 1.43-5.17).

TWO NEW HOVERFLY SPECIES OF THE GENUS EUMERUS MEIGEN, 1822 (DIPTERA: SYRPHIDAE) FROM RUSSIA

Two hoverfly species, Eumerus pilosus Barkalov et Mutin, sp. n. and Eumerus grunini Barkalov et Mutin, sp. n., are described and illustrated from Volgograd Region and Trasbaikal Region of Russia, respectively.

A High-Status Middle Sarmatian Burial from the Kovalevka Burial Complex in the Volgograd Region

The article is devoted to the archaeological materials publication from the kurgan 25 excavations of the Kovalevka burial complex. The accompanying inventory, marking a high status of the buried, was found in an individual burial made in the tradition of the Middle Sarmatian funeral rite. The bronze cauldron broken in antiquity and placed upside down was found in the cache. Cauldrons of this type existed in the first century AD. Iron bits with two-hole psalms, widespread among the nomads of the steppe zone starting from the turn of the eras and silver-plated iron plaques from the horse bridle jewelry lay nearby. The set of three phalars, which can be functionally defined as breast and shoulder plates of a horse harness, was found on the other side of the cauldron. The phalars made of forged silver sheet traces of gilding on the surface. The multi-figure compositions of animals, birds and floral ornaments were depicted on the obverse, in low relief. Such phalars in Sarmatian monuments were widespread since the turn of the era and exist within the first half of the first century AD. On both sides of the cauldron there were two gray-clay pottery jugs made in Kuban pottery centers. They became widespread in the burial grounds of the Kuban and the Lower Don starting from the turn of the eras, although they were occasionally encountered at the end of the Early Sarmatian time. Two paired long militant knives were placed along the right leg; these finds are well known in the Sarmatian burials of the turn of the first centuries AD, and are found, as a rule, in high status complexes along with horse harness, bronze cauldrons and other prestigious items. All of the above allows us to assert that the buried individual belonged to the nomadic elite, whose burials during that period were concentrated in the Volga-Don interfluve.

Nomads of the Oghuz-Pecheneg Time of the Volga-Don Region According to Anthropology Data.

Introduction. The article presents the results of an anthropological study of the nomads of the Oghuz-Pecheneg period of the Volga-Don region, known from written and archaeological sources. Material and methods. To carry out the analysis, both published materials and new ones studied by the author were used. The craniological series included data on 55 skulls – 38 male and 17 female. The new material is represented by skulls obtained from excavations of cemeteries in the Volgograd region, for 23 skulls. The anthropological composition, intragroup structure, and ethnogenetic connections were determined by the methods of simple and multivariate statistics. Analysis and discussion. The arithmetic mean values of the male and female craniological series demonstrated a racially mixed Caucasoid-Mongoloid complex, components of which are determined in men by II and in women by both I and II principal components. In addition, in the male series I, the main component performs the function of size and demarcates the skulls with a massive and gracile structure of the brain and facial regions. The multiple discriminant analysis carried out in order to identify ethnogenetic connections showed the greatest similarity of a series of nomads of the Oghuz-Pecheneg period both with their predecessors, the population of the Khazar period, and with groups of Cuman and Golden Horde nomads. The Turkic origin of the study group demonstrates connections with the synchronous populations of Southern Siberia and Kazakhstan. Conclusions. The Oghuz-Pecheneg people exhibited a racially heterogeneous anthropological composition, combining Mongoloid and Caucasoid components. This is a direct consequence of their origin. Apparently, the nomads of the Volga-Don region of the studied time, after its development, could include in their composition the nomadic groups of the previous Khazar time and form the composition of both the urban and nomadic population of the Golden Horde.

Zoning of the Lower Volga Region and Formation of Territory, Okrug, District and Rural Bodies of Soviet Authority in 1928: First Stage

Introduction. The article examines the process of formation of the Lower Volga region and Soviet authorities at the level of regional, district, and rural administration at the first stage of zoning (before the liquidation of okrugs). Methods and materials. The research was carried out based on traditional methods of historical research (historical-genetic, retrospective, historical-systemic, and historical-comparative). The use of an array of unpublished archival documents stored in the State Archives of the Volgograd Region and the Documentation Center for Contemporary History of the Volgograd Region, and materials from periodicals and legislative sources of government bodies of the USSR and the RSFSR, greatly facilitated the research process. Analysis. The study is aimed at identifying the regional specifics of the zoning process and the accompanying process of formation of Soviet authorities (at the level of councils and executive committees of councils of the Lower Volga region). Results. The zoning of the Lower Volga region already at the first stage revealed a range of problems, the systematic solution of which in the future will make it possible to transform the agricultural region into the industrial center of the Volga region. In the process of reform, along with positive aspects – the reduction in cost of the management apparatus, the bringing closer to the population of Soviet authorities endowed with significant powers (district executive committees and councils) – there were also clearly negative consequences. The distance of rural councils from middle management and the consolidation of individual rural councils, on the one hand, led to the planned reduction of hardware costs but, on the other hand, excluded remote villages from active public life. Districts became the main operational unit of economic and Soviet work in the region. There were several issues to address, including the imbalance between districts with different population sizes, from small ones with just over 2,000 people to large ones with populations approaching 100,000. Additionally, there was a lack of communication between administrative units and personnel problems, which emerged as a significant hurdle in the development of district and rural Soviet administration at the second stage of zoning (in the conditions of the liquidation of okrugs).

Burial of a Golden Horde Nomad from the Kovalevka Kurgan Cemetery

Introduction. The article introduces into scientific circulation the archaeological and anthropological materials from the Golden Horde burial of the Kovalevka Kurgan Cemetery. Kurgan No. 35 dating back to the early Iron Age was studied in the course of the fieldwork carried out by the Volgograd State University expedition in the Oktyabrsky district of the Volgograd region in 2021. The Kurgan is located in the southern part of the cemetery on the upper terrace of the right bank of the river Aksai Esaulovsky in an arable field. Methods and materials. Two burials were examined because of the archaeological excavations. The main burial No. 2 dates back to the late Sarmatian period, while the intake burial No. 1 dates back to the middle age period. Analysis and results. New anthropological materials were obtained in the course of the excavations, which complement our understanding of the nomadic population from the Lower Volga region. The bone remains belonged to a male individual of mesomorphic build of about 164.5 cm tall with a long and narrow skull. A set of pathological conditions were recorded on his bones, appearing because of an active lifestyle and professional activity. The outcomes of the archaeological study of the Kurgan No. 35 from the Kovalevka Kurgan cemetery as of 2021 can be used in the museum and local history work, as well as in studies of the Lower Volga regional ancient history. Authors’ contributions. In this study, V.I. Moiseev and V.Yu. Moiseeva prepared a descriptive part of the archaeological material, carried out the funeral rites and grave goods analyses, and prepared conclusions based on the results of the research. E.V. Pererva conducted a study of anthropological material and defined the craniological, osteological, and pathological features of the individual from burial 1 of the Kurgan No. 35.

Ethnolinguistic Bonds in the Speech of the Don and Ukrainian Dialects of the Volgograd Region

The article substantiates a comprehensive approach to defining the concept of ethnolinguistic bonds, characterizes the connection with the subject, the object of research within the framework of the problem posed, which is relevant for the anthropocentric paradigm of scientific knowledge. Taking into consideration the methodological principles developed in cultural-and-linguistic dialectology and ethnolinguistics, on the basis of the analysis carried out upon the facts extracted from the recordings of the Volgograd region inhabitants’ speech the author’s vision of the extralinguistic and intralinguistic foundations of the concept under consideration is presented; its definition is proposed. The integrative techniques of ethno-linguistic unity fixation are described. They are manifested by the Don and Ukrainian dialects speakers (and their descendants) in the means, which comprise the peculiarities of dialect speakers’ lexicon (monolingual and bilingual, monoethnors and biethnors) observed on the territories of mixed residence shared by the Don Cossacks and Ukrainian settlers and their descendants. These lexical bonds are classified. They are shown to reflect indirectly the universally significant realia of the surrounding world (people, objects, phenomena, processes and signs), as well as the traditions, represented in the collective cultural and historical heritage of the Slavic ethnic groups in the material and spiritual spheres of life on the territories of mixed residence. The peculiarities of interdialectal interaction in the formed speech continuum of the poly-Slavic society, who perceive themselves as Russian people, are determined.

Влияние предпосевной обработки семян и агрохимикатов на урожайность озимой пшеницы

High yields cannot be achieved without the use of fertilizers, but how much they can pay off in modern economic realities and in drought conditions is unknown. In this regard, it is important to have new knowledge about effective systems of application of mineral fertilizers and agrochemicals in winter wheat cultivation in the zone of chestnut soils of the Lower Volga region. Therefore, the purpose of our research was to study the effect of growth stimulants in pre-sowing seed treatment and leaf fertilization with liquid fertilizers on the productivity of winter wheat in the Volgograd region. On average for 2021-2023 years, the minimum photosynthetic potential of winter wheat - 1288 thousand m2 day/ha was formed on plots without UAN 32 and growth regulators, and the highest - 2063 thousand m2 day/ha on plots with two fertilizers UAN 32 and growth regulator Emistim. Autumn fertilization with UAN 32 increased dry aboveground biomass of winter soft wheat in the variety Kamyshanka 6 at earing phase by 13%, two and three fertilizations by 26 and 27%, respectively. Growth regulator Polidon increased dry aboveground biomass of winter wheat at earing phase by 4%, Alfastim by 7%, Emistim by 12%. In the phase of milk ripeness dry biomass from growth regulator Polidon increased by 6%, Alfastim by 11%, Emistim by 14%. The lowest plant height of the variety Kamyshanka 6 was formed on the control - 0.89 m, the highest was on plots with two fertilizers and all variants on factor B and averaged 0.94 m, which is 0.05 m higher than the control. Spikelet length in the experiment was maximum in plots with two fertilizers and growth regulator Emistim. The minimum biological yield of winter wheat Kamyshanka 6 - 4.04 t/ha was obtained in the control variant, the maximum yield - 5.66 t/ha was observed in plots with two fertilizers UAN 32 and application of Emistim.

ВСХОЖЕСТЬ, ЭНЕРГИЯ ПРОРАСТАНИЯ И ПРОДУКТИВНОСТЬ РЫЖИКА ОЗИМОГО

The current structure of arable land in the Volgograd region leads to a number of problems in our agricultural complex, which must be solved through expanding the set of crops. In the current situation, winter ginger may turn out to be a real alternative to sunflower, partially replacing it in the group of oilseeds. In this regard, it is extremely important to improve the elements of the technology of growing winter ginger in relation to the conditions of light chestnut soils of the Volgograd region. The aim of the research was to study the effect of sowing dates and growth regulators on the productivity of winter ginger in the subzone of light chestnut soils of the Volgograd region. Field experiments were conducted in 2014-2017 in the conditions of the UNPC of the Volgograd State Agrarian University "Gornaya Polyana", Volgograd. Laboratory germination of winter ginger seeds of the Penzyak variety before sowing on average for 2014-2016 in the variant without treatment with growth stimulants was within 95.3%. On the Humat + KalMag variant, it was 1.8% more. In the variant with Humate, the laboratory germination was 2.7% higher compared to the control. In the variant treated with Zircon, laboratory germination was 3.0% higher compared to the control. And the highest laboratory germination was observed on the variant with the Epin-extra preparation and amounted to 99.4%, thereby exceeding the laboratory germination of the variant without growth stimulants by 5.1%. The field germination of winter ginger by sowing dates was not the same and on average over 3 years of research ranged from 62.0% at the first sowing period to 68.2% at the third term. The influence of growth regulators on field germination turned out to be more significant. Zircon increased field germination from 5 to 8.2%, and Epin-extra from 7.3 to 8.2%. Over the years of research, the winter hardiness of winter ginger varied from 66.1 to 77.4%. The maximum yield of winter ginger on average for 2015-2017 was formed on option 3 of the sowing period (September 17-20) and was equal to 2.26 t/ha. The minimum yield for an average of three years of research was formed on the control variant without seed treatment with growth regulators at the first sowing period and amounted to 1.57 t/ha.

Зависимость кормовой ценности эспарцета песчаного от листовых подкормок

In the feed production system of the Lower Volga region, more than 60% of forage crops are located on irrigated lands. Only these lands can be considered a guaranteed source of sustainable food supply. More than 80% of the feed from their gross production is harvested from irrigated lands, therefore, studies on the dependence of the feed value of sandy esparcet on leaf fertilizing are certainly relevant. The aim of the research was to increase the efficiency of esparcet cultivation in the conditions of the Lower Volga region by improving the use of mineral fertilizers. Experiments to study the dependence of the feed value of esparcet in the form of green mass on leaf fertilizing with water-soluble mineral fertilizers were conducted from 2017 to 2023 on irrigation in the zone of light chestnut soils in the Prigorodnoye SEC of the Svetloyarsky district of the Volgograd region. Mineral fertilizers were applied in the form of leaf fertilizing during the period of active growth of the esparcet according to the following schemes: 1. Control (without leaf dressing); 2. Monophosphate at the rate of 0.5 kg/ha per top dressing; 3. Monophosphate with adhesive at the rate of 0.5 kg/ha per top dressing. As a result of the experiments conducted, it was found that in the variant using potassium monophosphate, the yield of the green mass of the Rusich variety was 8.2 t/ha, or 18.8% more, and in the variant using potassium monophosphate with an adhesive by 11.7 t/ha, or 26.8% more compared to the control variant. The largest accumulation of feed units of 12.8 t/ha was found in the Rusich variety on the variant of leaf fertilizing with potassium monophosphate with an adhesive, which turned out to be 0.6 t/ha more than in the experiment from 2017 to 2019. The highest content of digestible protein of 2.21 t/ha was found in the Rusich variety on a variant of leaf fertilizing with potassium monophosphate with an adhesive. The largest amount of metabolic energy of 101.7 GJ was contained in the Rusich variety on a variant of leaf fertilizing with potassium monophosphate with an adhesive. The lowest amount of metabolic energy was contained in the Sandy 22 variety in the control variant without leaf fertilizing and averaged 70.3 GJ for 2021-2023.

Фотосинтетическая деятельность козлятника восточного при применении стимуляторов роста

In the feed production system of the Lower Volga region, more than 60% of forage crops are located on irrigated lands. Only these lands can be considered a guaranteed source of sustainable food supply. More than 80% of feed from their gross production is harvested from irrigated lands, therefore, studies on the dependence of the feed value of the eastern goat from leafy top dressing are certainly relevant. The aim of the research was to increase the efficiency of cultivation of the Eastern goat in the conditions of the Lower Volga region by improving the use of mineral fertilizers. Experiments to study the dependence of the productivity of goat husk in the form of green mass on treatments with growth stimulants were conducted from 2016 to 2023 on the irrigated site of the Prigorodnoye SEC of the Svetloyarsky district of the Volgograd region on light chestnut soils with irrigation regime 70...85...70 % NV sprinkler machine "Valey". The article presents research materials on the cultivation of Oriental goat on light chestnut soils of the Lower Volga region. The largest area of the leaf surface of the eastern goat in the experiment, on average, over seven years of use, was established in the Jubilee variety on the variant of using the growth stimulator Mival-Agro and was equal to 49.3 thousand m2/ha. The maximum photosynthetic potential of the oriental goat was established in the Jubilee variety on the variant of using the growth stimulator Mival-Agro and was equal to 9.71 million m2 x day/ha. In the Kazbek variety, the net photosynthesis productivity (NPF) ranged from 1.79 g/m2 day in the Megamix-Pro growth stimulator variant to 1.88 g/m2 day in the control variant without the use of growth stimulants. The net photosynthesis productivity of the Krivich variety was 0.10-0.30 g/m2 day more than that of the Kazbek variety, the same, or 0.28 g/m2 day more than that of the Jubilee variety and ranged from 1.89 g/m2 day on the variant of the Megamix-Pro growth stimulator to 1.90 g/m2 a day on the option of using the growth stimulant Mival-Agro and on the option without the use of growth stimulants.

Agroclimatic conditions influencing wheatgrass (Agropyron pectinatum, M. Biev.) production in Volgograd region of southern Russia

Agroclimatic conditions influencing wheatgrass (Agropyron pectinatum, M. Biev.) production in Volgograd region of southern Russia

Продуктивность подсолнечника в зависимости от основной обработки почвы и агрохимикатов

In modern conditions the most effective way to increase the gross production of sunflower oilseeds is the selection of the most productive hybrids and realisation of their potential productivity by improving sunflower cultivation technology for specific soil and climatic conditions of the zone. Therefore, this topic is certainly relevant. Field experience was conducted on the experimental field of LLC ‘Kolos’ Mikhailovsky district of Volgograd region in 2020-2023. The main purpose of the research was to determine the optimal methods of basic cultivation, as well as a comprehensive assessment of the productivity of sunflower hybrids for the subzone of dark chestnut soils of the Volgograd region. On average for 2021-2023 years, the lowest photosynthetic potential of sunflower Suzuka was formed on the variant of disc tillage at a depth of 0.18-0.20 m without the use of leaf fertilisers with microfertilisers and was equal to 1062 thousand m2 day/ha. The lowest photosynthetic potential of sunflower Suzuka was formed on the variant of disc tillage at a depth of 0.18-0.20 m without the application of leaf fertilisers with microfertilisers and was equal to 1062 thousand m2 day/ha. The highest photosynthetic potential of 1755 thousand m2 day/ha was formed on the variant of ploughing to a depth of 0.25-0.27 m with the application of fertiliser Fulvigrain. The lowest biological yield on average for 2021-2023 years was formed on the variant of shallow disc cultivation without application of leaf fertiliser and was 2.04 t/ha. The highest biological yield was formed on the variant of ploughing to a depth of 0.25-0.27 m with the application of fertiliser Fulvigrain and was 3.02 t/ha.The lowest economic yield on average for 2021-2023 years was formed on the variant of shallow disc cultivation without application of leaf fertiliser and was 1.94 t/ha.On the variant with application of fertiliser Aidamin economic yield was 0.13 t/ha higher.In the variant with application of Fulvigrain fertiliser the economic yield was 0.21 t/ha more compared to the control variant.On variants of flat-cutting tillage at a depth of 0.25-0.27 m economic yield in comparison with variants on the background of disc tillage at a depth of 0.18-0.20 m was 0.48-0.63 t/ha more.The highest economic yield was formed on the variant of ploughing to a depth of 0.25-0.27 m with the application of Fulvigrain fertiliser and was 2.88 t/ha.

The Influence of Seeding Rates on Crop Infestation and Safflower Yield

Background: Safflower is an oil seed crop that can form seeds in extreme conditions, so it can be used as an alternative to sunflower because their growing technologies are similar. Weeds cause significant damage to the safflower crop. The safflower crop does not tolerate chemicals used to control weeds, so the study was devoted to alternative methods of weed control in its crops, namely the effect of seeding rates on weed infestation and seed yield. The goal is optimal seeding rate and its effect on weed infestation of safflower crops. Methods: The experimental site was laid out on the right bank of the Volga River, Kamyshinsky district, Volgograd region, in a dry steppe zone of chestnut soils with a hydrothermal coefficient of 0.6-0.4. Safflower seeds were sown with three seeding rates: 25, 30, 35 kg/ha in triplicate, with row spacing of 15 cm. The experimental results were presented graphically and processed by dispersion analysis. Result: The research results showed that in the area with a sowing rate of 35 kg/ha of viable seeds there was the least weed in the safflower crops, and the seed yield was higher than in other areas with lower sowing rates. Statistical analysis determined that the seeding rate has a 51.1% effect on safflower yield.

Epidemiological situation of natural focal infections in the Volgograd region in 2022

The article is devoted to the analysis of the epidemiological situation of natural focal infections (NFI) in the Volgograd region in 2022. Materials and methods: The work used the official statistics of the institutions of Rospotrebnadzor on NFI for 2022. The main research method is epidemiological analysis. Results and discussion: It has been established that the numbers of small mammals, potential carriers of NFI, as well as ixodid ticks in the territory of the Volgograd region in the season of 2022 were higher than the same indicators of the previous year (SIPY). The number of mosquitoes, carriers of arbovirus infections, did not exceed the average long-term indicators in any species. When examining environmental objects for the presence of markers of NFI pathogens, a slight increase in the proportion of positive samples compared to SIPY in all nosological forms was noted. Sporadic cases of West Nile fever (WNF), Crimean hemorrhagic fever (CHF), hemorrhagic fever with renal syndrome (HFRS), ixodes ricinus-borne diseases (TBDs), Q fever have been registered; no cases of tularemia, rabies, leptospirosis were detected. The morbidity rates of the population of the Volgograd region for all NFI were at the level or lower than those for the Russian Federation and the Southern Federal District.

Эффективность использования новой кормовой добавки на основе органических кислот при выращивании цыплят-бройлеров

Purpose. Studying the effectiveness of using feed additive "Aciform" when included in the diet of broiler chickens. Materials and Methods. The objects of research were broiler chickens of Cobb-500 cross and feed additive "Aciform". The experiment was carried out in the conditions of the farm of Krest'yanskiy Dvor LLC (Volgograd region). Three groups (two experimental and control) were formed, 140 animals each. The poultry in the control group received feed that did not contain the studied feed additive. Norm for adding additive was 1 kg per 1 ton of feed in the 1st experimental group and 2 kg per 1 ton of feed in the 2nd experimental group. The duration of feeding is from 14 days to 42 days of age. During the experiment, the safety of poultry, the percentage of mortality and pecking, as well as the dynamics of live weight gain and the occurrence of possible side effects when using the feed additive were monitored using standard scientific research methods (zootechnical, mathematical) and certified laboratory equipment. Results. The use of new feed additive "Aciform" in feeding broiler chickens from 14 to 42 days of age at an input rate of 1 and 2 kg per 1 ton of feed had a positive effect on the increase in live weight of chickens. The chickens of experimental groups (1 and 2) exceeded poultry of control group in terms of the average daily gain in live weight by 1.0 and 2.9% (P≤0.05) for the entire experimental period, in terms of absolute increase on the 42nd day of growing – by 1.0 and 2.1%. The incidence of pecking in poultry of experimental groups (1 and 2) was 2.9 and 1.8%, and in the control group – 2.1%. In the groups of broiler chickens that received the test additive as part of the diet (1st and 2nd experimental), there were fewer dead poultry by 2.9 and 3.4%, and the survival rate was higher by 2.9 and 3.8% than in control group. Conclusion. The inclusion of new feed additive "Aciform" in the diet of broiler chickens had a positive effect on the safety, growth rate and productive qualities of the poultry.

Эффективность применения новой кормовой добавки в рационах цыплят-бройлеров

Purpose. Study the effectiveness of using Lecitomix feed additive in feeding broiler chickens throughout the entire technological cycle of keeping. Materials and Methods. The study was conducted on day-old broiler chickens of both sexes of Cobb-500 cross in the conditions of poultry farming in the Volgograd region. The duration of the experiment was 42 days. Experimental chickens in the amount of 387 heads were divided into 2 experimental and 1 control groups. In each of the experimental groups, Lecitomix feed additive was fed to the chickens as part of the feed mixture daily: 250 g (experimental group 1) and 500 g (experimental group 2) per 1 ton of feed. The poultry in the control group received feed that did not contain the studied feed additive. Weighing (10 animals from each experimental group) was carried out on the first day, on 21 and 42 days in order to assess the dynamics of broiler chickens live weight. Blood sampling was carried out on 42nd day of the experiment and its clinical and biochemical analysis was carried out to monitor physiological state of the experimental poultry. Generally accepted methods of zootechnical, morphological, biochemical, mathematical analysis and corresponding laboratory equipment, including URIT-3020 Vet Plus and URIT-800 Vet analyzers (China), were used in setting up the experiment and conducting scientific research. Results. Chickens of 1st and 2nd experimental groups exceeded poultry of control group for the entire experimental period in terms of average daily and absolute gains of live weight by 2.5 and 2.8%; amount of hemoglobin in the blood – by 4.0 (P≤0.05) and 4.4% (P≤0.05), erythrocytes – by 8.3 (P≤0.05) and 9.9% (P≤0.05); safety of poultry population – by 2.4 and 3.1%; digestibility of dry matter – by 1.7 and 2.9% (Р≤0.05), organic matter – by 3.1 (Р≤0.05) and 4.7% (Р≤0.001), crude protein – by 3.1 (Р≤0.001) and 5.0% (Р≤0.001), crude fat – by 2.6 (Р≤0.01) and 4,4% (Р≤0.001), crude fiber – by 12.0 (Р≤0.001) and 14.8% (Р≤0.001), nitrogen-free extractives – by 1.2 and 2.1%. Pecking incidents in experimental groups 1 and 2 of experimental broilers were lower than control chickens by 1.5 and 2.3%. Conclusion. The feasibility of using Lecitomix feed additive in industrial poultry farming to normalize metabolism, increase digestibility of diet nutrients, increase live weight and safety of broiler chickens has been confirmed.