In this article we present data on the effect of addition
of mineral nutrition elements in the structure of the
phytoplankton community in the north-eastern part of
the Black Sea in the different seasons. Experimental
studies have shown that the increase in biomass of
microalgae occurs at the simultaneous addition of
nitrogen and phosphorus in the accumulative cultures.
In the spring can get biomass Emiliania huxleyi,
P.pseudodelicatissima, Chaetoceros curvisetus and
Skeletonema costatum, in the summer – E. huxleyi, C.
curvisetus, P.pseudodelicatissima, S.costatum,
Thalassionema nitzschioides, Leptocylindrus danicus,
Dactyliosolen fragilissimus, Proboscia alata,
Pseudosolenia calcar-avis, in the autumn - C.
curvisetus, S.costatum, Th. nitzschioides, L. danicus,
D. fragilissimus
The purpose of the article is an examination of plus trees clones based on growth study in the seed orchard. The studied clones differ with the characteristics of growth. The perspective clones were selected by using an integrated examination
The article describes the environmental conditions and plant communities with Iris laevigata for the selection of optimal locations of its growth. The structure of natural populations can be a model for the creation of artificial populations of these species
In the work, we have presented the information of elaboration of a manufacturing process of Mycocel feed additive with the cellulolytic activity for poul-try industry. Manufacturing process includes follow-ing steps: stock culture maintenance and storage of Trichoderma lignorum 81-17, growing fluid culture of microscopic fungus in sucrose yeast extract me-dium, feed additive with cellulolytic properties out-put and quality control, packaging, storage and disposal of waste. We have shown that the Mycocel is non-toxic feed additive for protozoa and warm-blooded animals (laboratory mice and quails). This study demonstrated total population livability in the experimental group with feed additive. Quail body-weight of experimental group was higher by 6% as compared to the control and feed consumption per 1 kg of live weight of bird was 3,58 kg, 7,5% lower than the control
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
The number of microarthropods in the black soil de-creased with an increase in the number of oil. The same pattern was observed until a certain concentra-tion of lead in soil (von 250 mg / kg), after which high doses (500 and 1000 mg / kg) was recorded an in-crease in the number of microarthropods. Gamasid mites and ticks of akaroid-trombidiform complex have proven more resistant to lead, and armored mites and springtails - to oil, vise versa
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
The article considers the issues of international spread the fruits of bottled gourd. Analysis of polymorphism of lagenaria fruits have been made on the basis of images of the paintings and sculpture, marked characteristic features of each country. Issues of selection on the basis of the trait of fruit form have considered
The article provides the data of studying the biological
properties of Newcastle disease virus isolates
NDV/Pigeon/Rus/Kursk/1/13 and NDV/Pigeon/Rus/Kursk/2/13 derived from pigeons in pigeon houses in the Kursk region in 2013 using virological and molecular genetic methods
Currently, when solving the problem of greening it is
addressed to the technical and technological capabilities. These means can achieve some improvement of the environment in a particular region, but they are not enough to solve the problem of pollution in the whole country and the world. The
problem in general can be solved only through an integrated analysis of the set of economic and ecological processes, which makes it possible not only to improve the development, but also to manage the process of impacts on the environment itself