Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Koshchayev Andrey Georgiyevich

Scholastic degree


Academic rank

professor

Honorary rank

Organization, job position

Kuban State Agrarian University
   

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Email


Articles count: 41

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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 252
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
433 kb

CHARACTERISTICS OF THE STATE OF SHEEP BREEDING IN RUSSIA AND THE ROSTOV REGION AND PROSPECTS FOR THE DEVELOPMENT OF THE INDUSTRY

abstract 1572003029 issue 157 pp. 392 – 410 31.03.2020 ru 296
The article provides a convincing argument for the preference of wool and fur products over artificial and synthetic textile fibers. It is noted that artificial fibers and synthetics have negative ionization, while natural wool has positive ionization. It is emphasized that negative ionization is far from harmless to humans. The analysis of the state of sheep breeding in the Russian Federation is given and this industry in the Rostov region is characterized against this background. The data on the number and productivity of sheep of the main age and sex groups, the production of young animals per one hundred ewes are presented. The characteristic of tribal resources of the country and region is given. The breeding base of the industry in the Russian Federation is represented by 205 breeding organizations, including 3 breeding and genetic centers, 44 breeding plants, 145 breeding reproducers and 13 gene pool farms, which contain 1389.8 thousand sheep (39.0 % of their total number in agricultural organizations and 6.6 % of the sheep population in farms of all categories), including 904.7 thousand Queens (35.0 and 6.2%, respectively). The breeding base of the Rostov region has eleven farms, of which 6 breeding plants for such breeds as the Soviet Merino and salskaya and 5 breeding reproducers. In addition to these breed resources, there are breeding reproducers for the qigai and edilbaev breeds in the region. Total number of breeding sheep in the region is almost 44 thousand. The article indicates main problems in the development of the industry and ways and means to solve them
412 kb

CORRECTION OF DYSBIOTIC DISORDERS IN BEES BY USING PROBIOTIC MEDICATIONS

abstract 1582004019 issue 158 pp. 268 – 279 30.04.2020 ru 337
This article provides an overview of the need of the use of probiotic supplements and medications in the diets of insects, in particular bees and their families. We present a list of both Russian and foreign probiotics and their complexes, which are used in beekeeping for the treatment and prevention of various diseases, are shown. Their effectiveness is shown not only for the prevention and treatment of microbial disorders in the gastrointestinal tract of bees due to the manifestation of antagonistic properties in relation to opportunistic and pathogenic microflora, but also the possibility of their use as tools that can increase the immune status, the safety of bee families, and life expectancy. The article shows data on the positive effect of probiotics on the physiological and biochemical parameters of honeybees, activation of metabolic processes in the formation of a fat body, growth of strength and weight of larvae, development of pharyngeal glands, etc.
169 kb

MEAT PRODUCTIVITY OF BULL CALVES UNDER INTENSIVE REARING

abstract 1592005013 issue 159 pp. 183 – 194 29.05.2020 ru 208
The article presents a comparative assessment of the meat productivity of young cattle of the two most common intensive meat breeds in the Russian Federation (Aberdeen Angus and Hereford) in comparison with the most numerous native in the South of the country domestic breed, which is Kalmyk. Intensive rearing from 9 to 18 months of age was carried out in the conditions of industrial fattening complex on rations not containing juicy forages. In the process of 273-day intensive rearing, in bulls of the tested breeds average daily live weight gains from 1455 to 1526 grams were achieved. During this period, an absolute increase was obtained in Aberdeen-Angus bulls-416.6 kg, in peers of Hereford and Kalmyk breeds-413.6 and 397.2 kg. The highest pre-slaughter live weight and slaughter rates were noted in Aberdeen-Angus bulls, having a yield of a pair carcass of 59.4 % and a slaughter yield of 62.8 %. The meat of Aberdeen-Angus bulls has the highest content of fat and dry matter, but they have less protein, lower pH and moisture binding capacity and a higher loss of meat juice during cooking, compared with the bulls of the Kalmyk breed. It was confirmed that the coefficients of transformation of protein and energy into products are closely related to the intensity of growth and weight of the carcass. The most effective of these indicators were in bulls of Aberdeen-Angus, then Hereford and Kalmyk breeds. A similar pattern between the breeds was manifested in terms of profitability and cost recovery
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 410
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
.