Don state agrarian University
Author list of organization
List of articles written by the authors of the organization
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06.00.00 Agricultural sciences
Description
In this article, the analysis of thoroughbred sows of breed of Landrace and hybrid sows F1 in a combination (Yorkshire × Lanrace) on reproductive qualities and an index of commodity weight of a nest (ICWN-6) is presented. The economic benefit forecast is resulted at introduction system of hybridization with the use of imported breeds
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ANALYSIS OF FUNCTIONING OF RAILROAD WAREHOUSE OF MINERAL FERTILIZERS
Description
The railroad warehouse has most important role in the delivery process of fertilizers to agricultural consumers. It acts as logistics intermediaries. The analysis of material flows has been done on the example of a typical provider of mineral fertilizers in the South of the Rostov region (CJSC «Zernogradagrohimservis») for the last 6 years. Income values and implementation values are varied during the year synchronously for all fertilizers types with the exception of a few months at the beginning and the end of the year. During most of the year the enterprise operates as a negotiable warehouse. In January-February and October-December ammonium nitrate accumulates as a seasonal inventory for the spring peak of implementation, in the rest of the year its reserves are insurance. Stocks of other fertilizers types are insurance stocks for most of the year, in May-July occurs a slight accumulation of their seasonal stocks. A significant portion of mineral fertilizers (especially ammonium nitrate) is delivered for small enterprises and individual farms by cars of this provider. According to the supply contracts, a one-car-run is performed for the vast majority of customers. Routes of delivery of fertilizers are either radial or pendulum (with reverse idle mileage). Therefore, the optimization of the delivery of fertilizers does not seem possible by methods such as obtaining the shortest route network, consolidation of suppliers for consumers, etc.
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ANALYSIS METHODS TO INCREASE THE CHARGING VOLTAGE OF THE ALTERNATOR
05.20.00 Processes and machines of agroengineering systems
Description
The article considers the problem of insufficient charging voltage during the joint operation of the battery and alternator. A comparative analysis of the proposed ways of increasing the charging voltage of the generator
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THE ANALYSIS OF PHYSICAL AND CHEMICAL PROPERTIES OF MEAT AND FAT OF PUREBRED AND CROSS-BREED HOGS
06.00.00 Agricultural sciences
Description
The researches have been carried out on hogs of Steppe type (ST) of fast-ripening meat breed (FM – 1), large white breed (LW) and their cross-breeds ST*LW, LW*ST. Researches showed that gilts LW excelled the patterns of PSE – port in pH. NOR – port, in its turn, was distinguished by higher contents of components composing dry and organic matter. The superiority of cross-bred hogs ST*LW over LW*ST according to the quantity of triptofan in pork was determined. The analysis of physic-chemical properties of fat has shown, that gilts of Steppe type with PSE – pork were distinguished by lowered to of fat melting and increased iodine quantity against NOR – quality pork
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Description
There is a presentation of the operation analysis of the harvesting-transportation complex with using the system of collecting and processing information and there is estimation of its impact on the complex productiveness
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BIOLOGICAL FEATURES AND PRODUCTIVITY OF BLACK-AND-WHITE CATTLE
06.00.00 Agricultural sciences
Description
The behavior, interior and milk yield of the mature Black-and-White cows with various productivity levels, as well as etology of the replacement heifers are researched. The superiority of the high milk yielding cows for the lying duration and eating feed and water is revealed. Reduced variability of vital behavioral actions of animals is found. In addition, high yielding cows has been lower variability in all feeding acts. It was noted that high yielding animals exceeded equal age cows by the level of most interior factors. The differences were significant on the content of hemoglobin, vitamin E, and especially on the content of iron. Positive correlations between some interior design indicators is found. The analysis of lifetime productivity during our research found that high milk yielding cows had highest yields on the first lactation and kept the same level in the next lactations with insignificant variations. The lower productivity animals reached maximal yields on the third lactation with the followed downward trend. Differences between groups in lifetime productivity during research amounted to 16 992 kg. The significant superiority of the heifers with high grown intensity above equal age animals for the duration of feed and water eating, physiological functions and lying. The analysis of variation coefficient is confirmed the observed regularities.
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BIOCHEMICAL INDICATORS OF PIGS BLOOD OF SPECIALIZED TYPES
06.00.00 Agricultural sciences
Description
The research was conducted at the pure-bred pigs CT and hybrid juveniles CT x L Total protein blood serum was determined refractometrically, protein fraction - a method of horizontal electrophoresis on paper, the level of total lipids - B. Swahn, I. Scand. Researched transaminases (AST and ALT) method of Reitman-Frenkel, alkaline phosphatase - method O.A. Bessey e.a., creatine kinase - S.S. Kuby. Cortisol levels was determined by radioimmunoassay analysis, adrenaline - fluorometric method. Phagocytic activity was installed by Ms. V. Matusevich, bactericidal activity - by the method of Overmoney, T.A. Kuzmina
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06.00.00 Agricultural sciences
Description
Correlation of finished and meat qualities of swine with biochemical and cytochemical indices of blood with the aim of selection of true tests for earlier estimation of productive qualities of animals are carried out and analyzing
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06.00.00 Agricultural sciences
Description
In the article we have studied the influence of breeding Stavropol Rams breed and Australian meat merino for increase a wool productivity at offspring received from crossing with Soviet merino females
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06.00.00 Agricultural sciences
Description
The optimal rations have been found. We have conducted a research on the assessment of meat productivity, biochemical blood tests. The chemical composition of blood and meat has been found. We have empirically chosen a content area for both chicks and adults of black African ostriches. The article shows a selection of optimal rations for feeding of ostriches; we have also determined the live weight of ostriches in groups, keeping the chicks safe in groups, hematological studies of ostriches blood, the chemical composition of the meat, the efficiency of premixes of Vitafel S
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