Don state agrarian University
Author list of organization
List of articles written by the authors of the organization
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MEAT PERFORMANCE OF PUREBRED AND CROSSBRED SWINE GENOTYPES
06.00.00 Agricultural sciences
DescriptionThe article presents the study of carcass and meat quality of ST and DM-1 pig breeds, and the hybrids obtained with the participation of Landrace and Pietrain breeds. Crossbred gilts significantly superiors to counterparts in all parameters of meat performance
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06.00.00 Agricultural sciences
DescriptionExperimental studies were carried out on the breeding farms of "Russian pork" in Millerovo district of the Rostov region on purebred and crossbred animals derived from crosses of pigs and the Don steppe types of meat, breeds of Landrace and Pietrain. The Don type of meat was used in the experiments as a control. When crossing, the DM-1 pigs were used as the parent form, and CT as a father to give twin breed hybrids DM-1 x ST. The recent delivery of boars of Landrace and Pietrain breeds allowed to receive twin breed hybrids of genotypes of CT × L and DM-1 × P
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MEAT QUALITY OF DUCKS GROWN ON DIETS WITH DIFFERENT CONCENTRATIONS OF BENTO-CLAY
DescriptionObtaining maximum productivity and reducing production costs are the main challenges facing livestock producers in modern conditions. To achieve the effectiveness of the poultry industry, we carried out a research in the utilities sector of the Rostov Region, the purpose of which was to study the effectiveness of the use of a feed additive – bento-clay in the diet of ducklings grown for meat. In the research, we study the influence of various doses of the feed on the diet and growth of ducklings. Experimental research data showed that the introduction of bento-clay into the diet of ducklings as a feed additive allowed to increase live weight, average daily gain, the safety of ducklings, the mass of half-gutted and gutted carcasses, the yield of edible parts, and meat quality compared to the control group. Thus, bento-clay influenced the increase in the water-holding ability of ducklings meat, which contributed to the improvement of its technological properties. Therefore, at three weeks of age, the live weight of ducklings was 11.5% -18.2% more than ducklings of the control group, and at seven weeks of age this difference was 8.4-12%, respectively, and the average daily increase was 7.2 -14.1% with high safety
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06.00.00 Agricultural sciences
DescriptionIn this work we examine the type of inheritance, number and force of the genes participating in determination of a quantitative attributes of length, width of grain, weight of 1000 grains at hybrids from crossing of the Iranian variety of rice Ambarbu with varieties of Virazh and Boyarin. It is established, that distinctions between samples of length of grain made 3 pairs of genes, of width of grain – 1 pair genes, of weight of 1000 grains – 2-3 pairs genes
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THE RATIONALE OF THE RIGID CHARACTERISTICPARAMETERS OF THE COMBINE HARVESTERS OF HIGH PERFORMANCE
05.20.00 Processes and machines of agroengineering systems
DescriptionThe purpose of the study was to substantiate the rigid parameters of tyres in propulsion units for the combine harvesters of high performance. A research method is analytical with the use of a mathematical model of the combine harvester in which damping and rigidity of the drive axle tyres in circumferential and radial directions are taken into account. Values of the rational rigid characteristics of the pneumatic tyre have been generally determined by the ability of the tyre to be deformed so that to reduce the angular, vertical and horizontal skeleton oscillations of a combine harvester to ensure the high-quality technological process of the threshing and harvesting. The specified circumstance gains the special importance at the development and introduction of the new tyre modes for the combine harvesters of high performance. The analysis of the conducted analytical researches has been showed the expediency of using the threads of a cord in the propulsion unit of combine harvesters instead of diagonal or radial tyres of the same standard size with an original position of them. The offered pneumatic tyre of 30.5E-32 used as the leading one, and promotes the reduction of the angular oscillation amplitude and operating speed of a combine and also angular and vertical accelerations up to 1.42 times
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SUBSTANTIATION FOR DESICCANTS USE FOR SWEET SORGHUM SEED CROPS
06.00.00 Agricultural sciences
DescriptionThe article substantiates the necessity of desiccation for seed crops of sweet sorghum. The analysis of the productive characteristics of the sorghum presowing after treatment is made. The effect of desiccation to reduce contamination of seeds with major diseases of sorghum has been studied
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06.00.00 Agricultural sciences
DescriptionThe results of the researches of the technology impact of various intensity levels on the productivity of forage crops in the Priazovskaya zone of the Rostov region are given in this article. Economic effective technologies for each crop are identified
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OPTIMIZATION TECHNIQUES FOR PCRRFLP FOR GENOTYPING SHEEP
06.00.00 Agricultural sciences
DescriptionDiagnosis by PCR-RFLP (polymerase chain reaction – polymorphism of the lengths of restriction fragments) is the standard analysis of point mutations for the diagnosis of allelic polymorphism of candidate genes related with productive qualities of farm animals. Along the length of the fragments (RFLP) make a conclusion about the absence or presence of the point mutation, and homozygosity or heterozygosity of the individual. The aim of our work was the optimization of protocols for conducting PCR-RFLP analysis for genotyping sheep for genes of the growth hormone gene differential growth factor and gene of calpastatin
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THE EXPERIENCE OF CREATING A POPULATION OF MEAT-WOOL SHEEP
06.00.00 Agricultural sciences
DescriptionThe study of the productive qualities of crossbred offspring from different breeding combinations and identifying the most effective ones providing the maximum increase in the production of high quality lamb while reducing its cost is an important problem and is essential for further development of methods of creating a new type of precocious meat and wool sheep. In the Rostov region in the result of the establishment of populations of meat-wool sheep there are several groups of animals with different characteristics and hereditary inclinations. As the base of the work there is a method of mating and breeding of sheep of the desired type. The article presents the results of one of the fragments of a large complex work in which the possibility of using three-pedigree hybrids, created with the involvement of potential salskaya, edilbaevskaya and intense meat-wool breed, which is severokavkazskaya, to improve productive quality in the breeding of sheep. We have evaluated productivity and biological features of hybrids and proved the economic efficiency of their use in the production of mutton. We have given the results of the control slaughter and assessment of qualitative indicators of the meat of young sheep. The set of indicators characterizing meat productivity and meat quality revealed that the superiority of the studied indicators remained for two - and three-bred cross cattle. Hybrids have a higher rate of growth and quality parameters of meat productivity. These options are simple and complex industrial crossing are promising and can be implemented and used on the farms of the zone of breeding Merino sheep. Thus, the use of crossbreeding gives an opportunity to convert a flock of sheep in the desired direction quickly. At the same time, three-pedigree hybrids better combine the valuable qualities of the used species
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ORGANIZATIONAL-ECONOMIC ASPECTS OF INCREASED ACTIVITY OF SMALL AGRIBUSINESSES
DescriptionThe development of the agricultural sector involves the increasing entrepreneurial activity of small agribusiness in the conditions of the market. This requires the formation of the organizationaleconomic mechanism. It acts as a system of relations arising between the state and the entities. One of the basic conditions in the solution of this problem is state support of small agribusiness at various levels. In addition, it is necessary to create a better organizational-economic mechanism of development of this type of business in the agricultural sector, which is aimed at creating and strengthening the competitive environment of agricultural producers. This article discusses the main directions of formation of the elements of the organizational-economic mechanism of development of small agribusiness in the proletarian district of Rostov region. In the area gets the development of competitive selection of farmers for the development of the agribusiness in animal husbandry. It helps to increase the livestock of farm animals in peasant (farm) area. The creation of a wholesaledistribution center on the basis of the agricultural consumer co-operative will contribute to the development of marketing infrastructure, primary processing, storage and transportation of agricultural products produced by small businesses in the area. The organizers of the marketing and logistics chain, which are wholesale distribution centres not only provides the most efficient distribution of the produced agricultural products, but also allows in General to increase the activity of the small agribusiness