The article presents the results obtained in experi-ments at the effect of the formation of crown of apple varieties, such as Idared, Golden Delicious, Florina and Reinette Simirenko on economic affect in Kuban region fruit zone. The estimation of different types of forming crowns is given. The best results were obtained in forming crowns in type of Bee Baum and Sollux for all varieties
The article presents the decision of the task of the
linear programming. The basic methods of decision
of this type of tasks are considered in the article.
Every method has been characterized. Modern
practice shows that this type of tasks and methods of
his decision are widespread. The problem of decision
of this type of tasks remains very actual and
presently, although development of methods of
decision of tasks of optimization got most
development in the middle of the twentieth century.
This question is important for not only major and
shallow concerns and organizations, in industrial
situations, but, as well, for all the members of social
and economical relations. The example of decision of
task of the linear programming is examined in the
article; actuality of the studied problem is grounded.
Description of each of the applied methods of
decision was presented. In connection with wide
development of information technologies, a lot of
attention has been paid to the decision of task by
means of computer calculations. The brought task
and the charts illustrate all the importance of the
studied problem evidently, on the example of small
workshop possessing limited resources. On the basis
of the obtained data, we have drawn a conclusion
The main contribution to the soil biological properties change in the combined pollution with lead and an alternating magnetic field makes lead pollution. Contribution of the interaction of factors of 20-30%. The contribution of the alternating field was
insignificant or unreliable. Black soil and brown forest soils are similar in degree of resistance to the combined pollution. Grey sands have less stability
This article is devoted to the study of various laboratory tests for the diagnosis of viral peritonitis of cats, conducted in 2014-2018. The study was subjected to 278 cats of both sexes, different breeds and mongrel, of different ages, which were taken to the veterinary clinic «Vita» and the veterinary clinic «Noah's Ark» in Krasnodar. Analysis of the results showed that in the diagnosis and differential diagnosis of viral peritonitis of cats, the most resultant is a combination of studies of Globulin in serum and a test for antibodies to coronavirus, or a solid enzyme immunoassay (tIFA) on IgG to coronavirus. In addition to clinical symptoms, routine laboratory studies, instrumental studies for the diagnosis of viral cat peritonitis, it is necessary to use additional research methods, although many of them have a number of shortcomings in sensitivity and specificity
In recent years, many pigs of specialized breeds,
characterized by increased meat qualities, have been
brought to Russia from Canada and a number of
European countries. The article presents the results of
the assessment of slaughter and meat qualities of pigs
of different genotypes. Danish pig meat was used as
research objects: purebred landrace (CHL), benthic
hybrid Landrasx yorkshire (LxY), three-breed hybrid
landrace hyorkshire x dyurok (LxXxD), removed from
control fattening, and developed prototypes of delicacy
products. The commission evaluation of meat and
broth showed that the boiled meat from the three breed
animals received the highest score, and the quality of
the broth significantly exceeded the samples of
purebred landrace and two-breed animals. As a result
of the tasting evaluation of the Voronezh ham, it was
established that the samples of meat from threebreeded
pigs, in comparison with the samples from
purebred meat, show the most pronounced flavor,
aroma and soft consistency
The article presents the use of intensive methods of
diet herd reproduction that will increase the
productivity and profitability of the sheep industry.
One of such methods is in vitro fertilization (IVF). For
the success of in vitro fertilization procedure, an
important requirement is the availability of highquality
nutrient media, which help to preserve the
genetic material and contribute to the further
development of the zygote. The main requirement to
the media for sperm is the ability of media not to cause
their agglutination. The aim of our work was to search
for new ways to reduce the agglutination of
spermatozoa in the preparation of freshly prepared
sperm in the process of production of embryos in vitro.
To eliminate the agglutination of spermatozoa in the
semen preparation stage, we used GCY medium,
followed by demolition of seed in SOFw environment,
which has resulted in a significant (almost 15 times!)
reduce of the number of bound sperm. In our opinion,
a decrease in agglutination in GCY buffer was
connected with a specific influence of the constituent
components of sperm.
Conclusion: Thus, our method of preparation of
freshly prepared sperm for in vitro fertilization allows
a sharp decline in sperm agglutination, which will
improve the fertility of eggs during the production of
embryos in vitro sheep
In recent decades, Russia has increased the demand for
high oleic sunflower oil and, consequently, for the raw
material from which it is derived – high oleic sunflower
seeds. Currently existing methods of control of mass
fraction of oleic acid in the seed oil of sunflower, have
significant drawbacks, due to which sharply raises the
question of the development of the Express methods of
control of mass fraction of oleic acid. The study presents
the results of determining the mass fraction of oleic acid
in the oil of sunflower seeds, obtained by known
methods (GC and ri), and developed a method based on
NMR. The developed method of determining the mass
fraction of oleic acid in sunflower seed oil has a number
of advantages compared with the known: is not
destructive (does not require the extraction of oil from
seeds), does not require special sample preparation
excludes the use of toxic chemicals, the analysis duration is 5 minutes, ensuring high representativeness of the
sample, and the simplicity and automation of the analysis
process reduces the requirements for qualifications of
laboratory personnel. The developed method of
determining the mass fraction of oleic acid in the oil of
sunflower seeds can be carried out simultaneously with
the determination of oil and moisture content of seeds on
commercially available analyzers, but I hope it 1006М,
which is currently applied at more than 250 companies of
oil and fat industry
The article presents the comparative characteristics of
the current (diffusion) and developed (diffusion-press)
sucrose extraction technology from sugar beet
cossettes. We have presented the graphs of the
influence of raw juice pumping value on its cleanliness
and residual content of sucrose in partially desugared
beet cossetes, the influence of partially desugared beet
cossetes pressing power on residual content of sucrose
in the pressed pulp and losses of sucrose with pressed
pulp and also the technological scheme and regimes of
diffusion-press extraction of sucrose from sugar beet
cossettes. The criteria for determining the boundary
parameters of diffusion and press sucrose extraction
stages are identified. The comparative assessment of
technological and economic indicators of the existing
and the developed technologies of sucrose extraction
from the beet cossettes is shown. The developed
technology allows reducing raw juice pumping value
simultaneously increasing its purity, thereby providing
reduction of auxiliary materials and energy resources
consumption, as well as increasing sugar yield. The
technology of diffusion-press extraction of sucrose is
implemented on 2 sugar beet factories of the Russian
Federation. The economic effect from its
implementation is more than 45 mln. rubles
The assessment of quantitative signs of plants of peas and comparison of hybrid lines of leafless peas and leaves morphotypes is carried out. Lines of peas which are more productive and most adapted for the south Rostov region conditions were allocated as a result
The article discusses the results of the research on winter soft wheat which is connected with the studies of yield variability, depending on the year conditions and the variety, conducted in 2003-2014. The objects of the research were 34 varieties included in different years into the State register of breeding achievements and recommended for cultivation. The experiment was carried out by the predecessor of soybean on the medium background of soil fertility. The varieties were being cultivated both with the protection against fungal diseases and without it. The method of dispersive and variance analysis was used in mathematical processing of the yield data. The parameters of ecological plasticity (bi) and yield stability (S2) have been calculated according to the methodology of E.A. Eberhardt and U. A. Russell (1984). The range of variability has been defined according to V.A. Zykin (2000), the fulfillment of the yield potential has been set according to E. D. Nettevitch (2001). The research revealed that the new winter soft wheat varieties included into the State register of breeding achievements are mostly productive and adaptive. Their yield increases mainly due to the upper threshold. The new varieties differ in yield stability but we have not found out a certain pattern. In conclusion it must be mentioned that the implementation of Eberhardt and Russell model in analyzing yield data allows us to estimate general tendencies in its variation when the conditions of the environment change and to identify the most valuable genotypes. In order to rank genotypes according to the characteristics which are being studied we have to choose an agricultural background on which their maximum potential is realized