Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
AGRIS logo UlrichsWeb logo DOAJ logo

Name

Koshchayev Andrey Georgiyevich

Scholastic degree


Academic rank

professor

Honorary rank

Organization, job position

Kuban State Agrarian University
   

Web site url

Email


Articles count: 36

Sort by: Date Title Views
232 kb

DEVELOPING LOW TEMPERATURE SOURCE LOCAL HEATING FOR PIGLETS

abstract 1081504056 issue 108 pp. 761 – 778 30.04.2015 ru 734
During the research, we have developed a low-temperature zonal heating panels with an infrared emitter to create a local microclimate for piglets in the suckling period. This heater is lightweight and durable frame in the form of an inverted box size 400 mm x 1800 mm, attached to the wall of the building swivel. Top frame mounted thermostat is connected to a temperature sensor mounted directly on a metal plate with a thickness of 1 mm, painted in black color. In the upper part of the inner carcass layer is a light insulating material, which is located directly under the low-temperature heat source is electric. Study of the optimal size of the heating panel revealed that in view of the limitations associated with the area of the machine and biological characteristics of the optimum size of the sow for 11 piglets are: width – 400 mm; length – 1500 mm (at ventral position) and 1800 mm (lateral position). Comparison of different heating sources for piglets revealed that the use of infrared lamps enables newborn piglets seating area by 55.6%, while in 28 days – by 88.9%. Infrared lamps can not completely meet the recommended specifications as to ensure a more intense heat lamp to be lowered towards the floor surface, which leads to a reduction in the useful area heated. Using as a source of local heating mats and low-temperature panels satisfies pigs in the area of the den in the early suckling period at 138.9 and 200.0%, to weaning, respectively – by 48.5 and 65.5%. Thus, we have developed a low-temperature heating panels contributed to a more uniform distribution of heat in a recreation area of suckling piglets and to provide a comfortable environment at temperatures of 2-3 C lower in comparison with other methods of heating
161 kb

DEVELOPMENT OF OPTIMAL WAY OF OBTAINING A HYDROLYZATE OF LACTIC ACID BACTERIA

abstract 1321708121 issue 132 pp. 1465 – 1477 31.10.2017 ru 168
The work was carried out in the scientific-research laboratory of the chair of Biotechnology, Biochemistry and Biophysics of Kuban SAU, the aim of which is the search of optimal conditions of obtaining the hydrolyzates of lactic acid bacteria by thermoacid and enzymatic ways. The pure cultures of microflora of gastrointestinal tract of quails − Lactobacillus agilis, Lactobacillus intermedius and Lactobacillus salivarius were the object of researches. Under conducting the thermal acid hydrolysis there were used the same correlations of bacterial mass and water as well as procedures of clearing of hydrolyzates. The variable conditions were рН, temperature and time of hydrolysis. When carrying out the enzymatic hydrolysis in this study there was used the enzyme from the group of muramidase lysozyme. The amount of enzymes and time of carried out hydrolysis were the variable conditions under obtaining the enzymatic hydrolyzates. In the process of researches there were studied: qualitative content of total protein, peptides with М.м. < 1500, protein and peptides with M.m. > 1500, aminoacids and as well as GMDP (glucosaminilmuramilpentapeptide). On the basis of carried out experiments there was stated that according to all components of biologically active substances the thermal acid way is more effective than enzymatic. The maximum accumulation of BAA in hydrolyzates by different ways was revealed at destruction of cells Lb. intermedius. Content of GMDP in thermal acid hydrolyzate was higher than in enzymatic on 0,028 g/100 ml (51,8 %)
335 kb

ECONOMIC-BIOLOGICAL FEATURES AND EXTERIOR MAINTENANCE OF YOUNG CATTLE IN THE KRASNODAR REGION

abstract 1051501064 issue 105 pp. 1046 – 1074 30.01.2015 ru 578
In the Krasnodar region there is a unique gene pool of animals both for dairy and meat. To assess the heifers the authors formed five experimental groups of animals, the most common species in the region. The authors studied the main economic, biological and exterior features: live weight, measurements, assessment of the exterior. The studies found that among intensive species with the largest body weight throughout the growing period, in 8-month old Charolais heifers superior Simmental ones at 17.4 kg. In one year old Simmental heifers were 9.2 kg (R˂0,05) ahead of Charolais and in 15 months – 10 kg (R˂0,05). Over the entire period of growth the highest rates of relative growth rates of heifers were obtained by red steppe breed type named Kuban, which had an advantage over the Aberdeen-Angus – 19.1%, Charolais – 5.6%, Hereford – 6.2%, and the difference between them and Simmental weren’t fixed. When growing, the animals become less tall, more stretched, wide and massive. We have noted that during the period of cultivation we had increased indices: stretch (9% – Red Steppe, 13.8% – Charolais, 16.1% – Hereford); chest (5.4% Aberdeen Angus). This reduces the index of long legs of red steppe – 5.6%, 10.9% for Charolais. The study of linear growth of animals confirms that the animal meat breeds of live weight increase was due to the extension of the body and increase the width of the pelvis and chest. Some different facts were observed in heifers of Red Steppe breed. For them, the most characteristic increase in the width of the chest was 1.44 times, as well as increasing the depth of the chest and chest girth behind the shoulders
161 kb

EFFECTIVENESS OF PROBIOTIC CULTURES AND THEIR CONSORTIUM ON THE MODELS OF EXPERIMENTAL INTESTINAL DYSBACTERIOSIS

abstract 1602006001 issue 160 pp. 1 – 10 30.06.2020 ru 19
The article demonstrates the results of therapeutic and preventive effectiveness of the use of lactic acid bacteria – Lactobacillus brevis and Lactobacillus parabuchneri in laboratory animals, in particular mice and rats. They were isolated from the gastrointestinal tract of a wild quail in experimental violation of the intestinal microbial background. Artificial imbalance of the intestinal microbiota of experimental animals was caused by the use of the antibiotic. As a result of tests it was established that the application of probiotic cultures improved microbial disorders of the gut, however, the use of their consortium in the probiotic promoted consistent clinical result characterized by an elevated level of representatives of the normal flora (lacto- and bifidobacteria) and reduction of the number of representatives of pathogenic and conditionally pathogenic microbiota, with subsequent achievement of a level characteristic of healthy animals
295 kb

EFFICACY OF SUPRANOL AND UTEROTON IN PREVENTION OF ACUTE POSTPARTUM ENDOMETRITIS IN COWS

abstract 1501906003 issue 150 pp. 30 – 55 28.06.2019 ru 176
The article reflects information characterizing the significance of mastitis and endometritis in the indicator of premature disposal of cows from herds of large farms in the western regions of the Krasnodar region: an average of 30% of the total culling of cows. The effectiveness of veterinary measures in Pravoberezhny JSC of the Temryuk district for mastitis and endometritis in cows was assessed: 81-95%; fertilization index value ‒ 1.8; the duration of the service period exceeds the requirements by 20 days. The studies the nature of the influence of the drugs called Sepranol and Uteroton on the calving process and the occurrence of postpartum complications in cows from the herd, which was formed with violation of breeding principles. The use of the drugs Uteroton and Sepranol contributed to a 50% decrease in the calving index in calving cows by 50% compared with the results of the combined use of estrophan and oxytocin. The use of Uteroton reduced the damage from the lack of milk by 87880 rubles, and the use of Sepranol - by 171164 rubles. We have given practical recommendation on the use of Uteroton and Sepranol for veterinary effects on the body of cows in the early postpartum period in order to reduce the occurrence of complications
229 kb

EXPERIENCE AND PROSPECTS OF SEXING SEMEN FOR CATTLE OF DAIRY COWS IN THE KUBAN REGION

abstract 1011407060 issue 101 pp. 953 – 967 30.09.2014 ru 1434
The article is an analysis of the results of three years of work with sexing sperm in one of the two farms of the Kuban region which have implemented this tech-nology
211 kb

EXPERIENCE OF USING NATURAL MINERAL COMPOUNDS FOR METABOLIC DISORDERS IN CATTLE

abstract 1241610069 issue 124 pp. 1065 – 1084 30.12.2016 ru 426
In this study we show the results of the use of natural mineral compounds in metabolic disorders in cattle-breeding complexes of industrial type. According to official data for 2013-2015, based on the biochemical analysis of blood of cattle, that was held in some farms of Samara region, significant metabolic disorders were determined due to decrease in total protein level on 31,5% in average, decrease in alkali reserve – on 26,9% of samples, decrease in calcium concentration – on 40,7%, decrease of the phosphorus – on 8,1%, decrease in carotene – on 81,7% and glucose – on 84,3% of studies. Clinical examination of herd revealed a high level of animals with obvious signs of mineral metabolism disorders (osteodystrophy and rickets of alimentary origin) and comorbidity (nutritional anemia, gastroenteritis, pneumonia, disturbance of protein, carbohydrate and vitamin metabolism, and others). The use of complex natural compounds improves the efficiency of the traditional complex of treatment and prophylaxis, causing an increase in the total concentration of calcium in the blood serum on 10-55%, increase in calcium-phosphorus ratio till 1,27-2,3, increase in annual growth rate of young animals’ body weight on 8,2-44,8%, increase in milk production on 5,9-16,3%. Preparations have an antianemic action, normalize indicators of micronutrient metabolism of proteins and carbohydrates, enhance non-specific resistance factors and prevent the development of non-contagious internal pathology
240 kb

FATTENING QUALITIES AND MEAT PRODUCTIVITY OF SALSKAYA SHEEP BREED OF IMPROVED GENOTYPES

abstract 1541910033 issue 154 pp. 360 – 382 30.12.2019 ru 11
Improvement of domestic breeds of Merino sheep remains an important task. The reorientation of the industry to wool-meat and meat-wool direction of productivity can contribute to the restoration of domestic sheep breeding. An example of such conversion is a relatively young breed called Dzhalginsky Merino, created in the Stavropol region on the basis of the Stavropol breed with the involvement of resources of domestic and world breeding. In the current situation, it seems relevant to use Dzhalginsky Merino, in order to improve the meat and wool qualities of sheep of domestic fine-wool breeds. Obtaining a new genetic combination of animals, formed by combining the genotypes of breeds Salsky, Stavropol and Dzhalginsky Merino will increase the efficiency of the industry in a market economy and will provide a more complete use of the productive potential of the breed. The results of studies on obtaining and use of animals, new genetic combinations of a wool – meat direction of productivity, with high energy of growth, meat and wool productivity, improves the efficiency of Merino sheep are an important theoretical justification for making a contribution to zootechnical science, with the aim of improving fine-wool breeds of sheep and can be used in practical work in the production of high quality lamb
387 kb

FRACTIONATION OF LUCERNE JUICE TO OBTAIN FEED ADDITIVES

abstract 0941310062 issue 94 pp. 918 – 941 27.12.2013 ru 813
The article provides an overview of the results of experimental works of the authors on the use of different methods of fractionation of Lucerne juice to obtain feed additives
249 kb

FUNCTION FEED ADDITIVE OF CAROTE-NOID VEGETABLE RAW MATERIALS FOR POULTRY

abstract 0931309079 issue 93 pp. 1165 – 1184 30.11.2013 ru 935
The article is concerned with the use of functional feed additives from pumpkin fruits and alfalfa juice for the poultry industry. In the study of laying hen it has been found that the use of a feed additive in-creased pumpkin paste content in serum and egg yolk carotenoids is more than two times, and the concentration of vitamin A in these tissues increased slightly, not exceeding 20%. Livability and productivity of poultry increased and average expendable fodder per head per day decreased. Economic calculation showed that the use of pumpkin paste reduces the cost of production of eggs. The use of alfalfa juice coagulates in diets for broiler chickens resulted in an increase in the concentration of carotene in the liver by 22,7-46,8% relative to control. The juice addition also increased the content of vitamin A in the liver by 27.9%, increase the safety and efficiency of the bird. The authors draw certain conclusions from experiment results that the use of functional additives in poultry from the fruit of pumpkin and alfalfa juice is an alternative to synthetic vitamin preparations and produce a more environmentally friendly products
.