<p>The results of three-year studies (2016–2018) of the global gene pool of maize hybrids on leached chernozem of the forest-steppe of Western Siberia are presented. The features of the realization of the biological potential of grain productivity are studied. It is shown that an increased level of production intensification allows to realize a high biological potential of corn grain productivity of different ecological-geographical profile. Hybrids of the first generation of domestic and foreign gene pool provided high photosynthetic parameters in relation to the conditions of the forest-steppe Priobye. The maximum leaf area of such hybrids as Clifton F1 and Korifey F1 exceeded 40 thousand m 2 / ha. The photosynthetic potential of Clifton F1 hybrid plants reached 3418 thousand m 2 · day / ha. The latter hybrid was distinguished by a high intensity of plant growth and development, which made it possible to form a high biological potential for the productivity of green mass and grain. Under conditions of irrigated agriculture in the forest-steppe of Western Siberia, the maximum yield of corn hybrids was at the level of 8 t / ha. It was established that maize hybrids Talisman (yield 8.4 t / ha), Gitago (8.3 t / ha), Delitop (7 t / ha), Falcon (6.8 t / ha) had a high ecological plasticity under extreme conditions Western Siberia and ensured high productivity with good quality of grain. The highest grain yield of maize Kuban 101 (maximum 6 t / ha) was found at a seeding rate of 6-7 grains per 1 m running length.</p>

<p>Over the past years there has been observed a tense epizootic situation on animal rabies in the Russian Federation. Epizootics of rabies are natural focal, stationary nature, tends to increase in the areas covered by the disease with the development of mixed-type epizootics, involving street animals in the epizootic chain. The maintenance of stable foci of sylvatic rabies is determined by representatives of the canine family – foxes, raccoon dogs, wolves – 42.5 % of cases. Domestic and neglected carnivores (dogs, cats) form 32–44 % of cases.</p>

<p>Studies were conducted to determine the effectiveness of the use of various doses of pharmaceutical substances based on the extract of a medicinal plant thyme on the quality indicators of broiler meat. The work was done in a broiler farm. Formed control and 5 experimental groups of day-old broiler chickens with 37 heads in each group. Chickens of the control group were fed the basic ration, broilers of the experimental groups additionally received a pharmaceutical substance obtained from the medicinal plant thyme in various doses: the 1–2 mg / kg, 2–4, the 3–6, 4–8, 5–10 mg / kg body weight daily. At the end of poultry rearing, the slaughter qualities of carcasses, the development of internal organs and the chemical composition of the pectoral muscle are determined. At the end of the study, the positive effect of thyme extract on the indicators of anatomical cutting of broiler chickens was established. In the 3th, 4th and 5th experimental groups, significant differences were found compared with the control group. Thyme extract did not have a negative impact on the development of the internal organs of broiler chickens. There are no significant differences in chemical composition and the amount of essential amino acids in the pectoral muscles of broilers.</p>

<p>The article presents the results of a study on the accumulation and migration of lead in the system «soil –a wild-growing medicinal plant», using the example of <em>Urtica dioica</em> L., which grows everywhere in the city of Novosibirsk. It was shown, that the minimum content of both gross and mobile forms of lead in soil was found in areas of the conditionally clean zone of the Dendropark; in the industrial zones of the Oktyabrsky and Kirovsky Districts, lead concentrations increased up to 1,49 times. The content of toxicant in the samples of plant raw materials (leaves) collected in the territories adjacent to CHPP-5 and the Novosibirsk Tin Works exceeded its level in comparison with samples of the Zaeltsovsky district up to 3,80 times, but did not exceed sanitary standards.The calculation of the bioaccumulation coefficients showed that the maximum accumulation of lead occurred in spring in the leaves of plants selected in the Zaeltsovsky district (CBI = 0,29), in October and Kirovsky districts there was a decrease in CPB to 1,38 times. In the autumn, leaf samples collected in the Kirovsky district were the leaders in lead accumulation (CBP = 0.98). The obtained results allow us to conclude that the accumulation and migration of lead from soil to plants are seasonal, and also depend on the degree of anthropogenic pollution of the place of growth.</p>

<p>The purpose of the work is to give a comparative assessment of different ways to obtain grain feed syrup. The study considered 4 options for obtaining grain feed molasses: previously developed in SibNITIP and implemented in the Russian Federation and developed when performing research in 2018 (3 options). The evaluation criterion was the sugar content in the syrup. As a result of research, it was established that the amount of sugars was distributed among the options in the following order: 17.00 % – in the previously developed, in the newly developed water-based – 14.52 %, on the basis of whey and grain stored for 21 days – 15.75 %, on the basis of whey and grain without storage – 24, 67 %. The method obtained molasses based on whey contains a greater amount of sugars, less energy-consuming and can be recommended for implementation.</p>

<p>Postpartum complications are recorded in 40–80 % of cases of calving animals. A prerequisite for this is a metabolic disorder that affects the morpho biochemical status of the body. The use of drugs based on probiotic microorganisms for the treatment and prevention of obstetric and gynecological pathology is a promising direction. Therefore, the aim of our research was to study the changes in hematological parameters in the treatment of acute postpartum endometritis in cows with the use of a new probiotic drug. We developed drug Fometrin suppositories is a light yellow color, with a content of dry biomass of probiotic cultures of cells. Fometrin the drug were injected 3 or 4 candles of the first and second experimental groups of cows, respectively, 1 per day, intrauterine, for 5–7 days, also used the PDE to 20 ml and Uteroton 10 ml, 3 times in 48 hours. For treatment of control animals used Ichglukovit, Oksilat and PDE in accordance with the instructions for use. As a result, the largest number of recovered animals (80 %) was in the second experimental group, the independence period was 28 % and the service period was 31 % and the index of insemination by 15 % than in control. The use of endometritis therapy regimen with the drug Fometrin in comparison with traditional treatment, manifested a decrease in the content of leukocytes by an average of 26.9 % and an increase in the number of segmental neutrophils by an average of 36 %, as well as a more optimal level of nonspecific resistance of the body, determined by the ratio of lymphocytes to rod neutrophils, to the end of the experiment. After treatment there was an increase in iron content on average by 20.5 % and cholesterol by 27.6 % in the experimental groups of cows and the most pronounced changes in the indices of protein and mineral metabolism in the organism of animals second experimental group.  </p>

<p>The results of alternative studies on the immunogenic activity of live rabies vaccines for oral immunization of wild carnivorous animals are presented. The method of evaluation of immunogenicity using a model of oral immunization in mice with experimental infection control rabies virus CVS in the dose of 10–100 MLD₅₀/0,03 ml. Once entered immunizing dose for white mice, weighing 12–14 g were 56.200 MLD₅₀, the titers of VNA ranged from 1:6 to 1:16 (3,0–4,0 log2) and above.</p>

<p>In order to study the effect of the drone homogenate on the elemental, metabolic, hematological, and immune statuses of dogs, we created control and experimental groups of Labrador retrievers. The dogs were kept in the conditions of apartments in the village of Kochenevo, Novosibirsk Region. The diet of animals consisted of meat, cereal porridge, cottage cheese and vegetables. Dogs received daily vitamin and mineral supplements and apples. Labradors – retrievers of the control group daily, for two months, drone homogenate was drunk once a day at the rate of 15 mg per kg of body weight. The results of the studies showed that in the presence of a drone homogenate, dogs increase thyroxin synthesis, activate erythro and leukopoiesis, increase phagocytic activity and phagocytic index, synthesis of total blood protein, in particular globulins, and triglyceride levels. An analysis of the chemical composition of blood serum carried out before the start of the experiment revealed in dogs of both groups more or less pronounced microelementoses in terms of cobalt, chromium, iron, potassium, manganese, sodium, phosphorus, lead, selenium and zinc. After completion of the course of taking the homogenate, a correction of the macro- and microelement composition of the blood occurred. The concentration of lithium, chromium, sodium, iron, phosphorus was statistically significantly reduced, and the concentration of boron, calcium, copper, iodine, nickel and tin increased.</p>

<p>The paper presents data indicating the possibility of correction of endocrine and metabolic status in dogs with euthyroidism homogenate from larvae of drones. It is shown that the daily intake of homogenate at the rate of 15 mg per kg of body weight for two months contributes to the increase in the blood levels of thyroxine, testosterone, red blood cells, hemoglobin, total protein, globulins and leukocytes.</p>

<p>It is founded that аn outbred Wistar line rats are susceptible to oral infection with bovine leukemia virus. Pathognomonic for leukemia changes such as neoplastic processes, as well as hyperplasia, adenocarcinoma, mastocytoma and fibrosarcoma in spleen were revealed in rats, when feeding them milk of BLV-infected and affected with leukemia cows. Progressive signs of intoxication, endocrine disorders and development of malignant processes were revealed by biochemical studies of the rats’ blood serum, regardless of whether the milk of infected or affected with leukemia cows was fed to them. In the offspring of experimental animals pronounced signs of liver, kidney and myocardium damages were observed.</p>

<p>The article is devoted to the analysis of epizootic situation on parasitic diseases of cattle in the farms of the Omsk region. It was found that among helminth diseases in public and farms region registered dictyocaulus, telesis, strongyloidiasis, paramphistomum and larval (larvalia) stage of tapeworms – bovigny and tenuicollis cysticercosis, echinococcosis. Among parasitic diseases, much work in the field was conducted by hypodermatosis of cattle.</p>

<p>To maintain a healthy immune system in animals, especially under conditions unfavorable for viral leukemia, a promising delivery system of biologically active molecules is considered – Subalin, a live delivery system. As a result of research, it has been established that with intraperitoneal and intravenous administration to animals, Subalin is harmless to animals, even at doses many times higher than the therapeutic one. With the introduction of the drug Subalin in animals stimulated humoral and cellular immunity, as evidenced by morphofunctional reorganization of the lymphoid system (spleen, lymph nodes). With the simultaneous administration of Subaline with a virus-containing suspension, subtility therapy had a stabilizing effect on the macroorganism, restraining the development of viral carcinogenesis.</p>

<p>The Republic of Altai has a large length of watercourses and significant areas of lakes of fishery importance. The collection of materials was carried out in the field season of 2018 on the lakes: Uch-Kol (Three Lakes), Kamyshevoye and Lake without a name, located within the borders of Kosh-Agach district of the Altai Republic. Research has covered the entire water area. In the course of the research it was noted that Lake Uch-Kol consists of three successive basins with a total area of 7.9 hectares. The upper lake basin has an area of 5.5 hectares. The average lake basin has an area of 1.8 hectares. The lower lake basin has an area of 0.6 ha. Higher aquatic vegetation in the pond is missing. Lake zooplankton is represented by one species of Cladocera and two species of Copepoda. Lake Zoobenthos Uch-Kol is represented by a representative of the r. Gammarus. The area of Kamyshevoye Lake is 7.4 ha. The pond has a slightly elongated shape from west to east. In the zooplankton of the reservoir of mass development, branchy and rotifers reach. Chironomid larvae and caddisfruits dominate in the structure of zoobenthos. The area of the lake without a name is 29.4 hectares. The reservoir has a form elongated from the northeast to the southwest. In terms of numbers and biomass, Copepoda copepads are the dominant group in zooplankton. The dominant position in the zoobenthos composition is occupied by caddis flies and gammarids. All studied water bodies have low biological productivity. Phytoplankton is represented mainly by diatoms and green algae. The ichthyological fauna of Lake Uch-Kol and Lake Kamyshevoye is represented by an oligoid type of ichthyocenosis. The ichthyological fauna in the Lake without a name is missing.</p>

<p>Research on hypergalin lakes began in 1977. Commercial interest in Artemia (at the cysts stage) as a starter feed for aquatic organisms served as the basis for monitoring studies of hypergalin lakes in the Altai Territory. Lake Bolshaya Yarovoye is noted as one of the largest bodies of water in the region with a population of toad crustacean Artemia Leach, 1819. Considering the depressed state of development of the Artemia population in the lake Great Spring in the growing season of 2017 (the reservoir productivity was 5.8 kg / ha), monitoring studies were conducted to clarify the status of the productivity of aquatic bioresources. As a result of complex hydrobiological surveys in the spring period (April – May), 2018, the dynamics of indicators of the number of early stages of development of the first generation Artemia crustaceans and cysts in the lake are presented. Big Spring Altai Territory. The analysis of the influence of the temperature and salinity of the water in the spring of 2018 on the condition of Artemia crustaceans and the reservoir productivity was carried out. In the course of monitoring studies of the hypergalin reservoir in April and May 2018, during the development of the first generation of crustaceans, a depressive state of development of the Artemia crustacean population was revealed. The temperature at the beginning of the growing season of the current year was unfavorable for the development of Artemia in the lake, which resulted in low numbers of crustaceans. Given the depressed state of the development of the Artemia population in the lake. In the growing season of 2017, the Great Spring, the extraction of bioresources (Artemia (at the cysts stage)) at the current state of the population can significantly undermine the fishing base of the reservoir and damage the further development of Artemia.</p>

<p>Presents the results of radiation monitoring local soils agricultural land in Siberia. At the level of the constituent entities of the Russian Federation appreciated the power of gamma radiation exposure dose (MJeDG), technotronic and content of natural radionuclides in different types of soils in Siberia. Set MJeDG change within 8.0–12.2 mcr/h, ¹³⁷Cs content in the range of 4.3–9.9 Bq/kg, ⁹⁰Sr-1.0–5.4 Bq/kg, ²²⁶Ra-15–37 Bq/kg, ²³²Th-16–40 Bq/kg. Comparison with similar parameters obtained, characterizing the radiation situation in soils of agricultural land in Russia. MJeDG, the content of ⁹⁰Sr and content of natural radionuclides in soils of Siberia correspond to those for Russia. Content of ¹³⁷Cs in soils in –2.6 1.7 times, in crop production in –2.3 1.6 times lower than in Russia. Content of natural radionuclides in soils of Siberia close to the contents in the soils in Russia on average and the planet. According to local monitoring radiation situation in agricultural fields.</p>

<p>Efficiency of application of various forms of nitrogen fertilizers on crops of spring wheat Novosibirsk 31 is shown. During the growing season the main phenological observations were made. In the phase of the beginning of milk ripeness of wheat defined a number of indicators related to plant productivity: the number of productive stems per unit area, plant height. In the ripening phase, the elements of the crop structure were studied: the number of productive stems, the number of spikelets in the ear, the number of grains in the ear, the mass of 1000 grains. Economic efficiency of cultivation of culture is calculated.</p>

<p>To reduce the risk of accumulation of heavy metals in the meat of fattened young cattle successfully used adsorbents that bind toxins and removed from the digestive tract. The detoxification effect of adsorbents increases with the skillful selection of enzyme preparations due to the synergy of action. The aim of the research is to study the effect of toxfin adsorbent and the enzyme preparation celloviridin G20x in the diets with high content of heavy metals on the morphological and biochemical composition of the blood of fattened bulls. According to the principle of pairs-analogues (taking into account the origin, sex, age, live weight) were formed 4 groups of 10 heads each. The research material is processed statistically using the software package «Microsoft Excel». In the composition of the winter diet of animals of all groups there was an excess of maximum permissible concentrations (MPC) in zinc level by 67.3–67.5 %, lead –by 63.4–64.6 % and cadmium – by 62.9–63.1 %, in the summer diet – by 66.4–66.6 %, 61.4–61.6 % and 60.6–60.8 %. This article presents experimental material showing that to optimize the morphological and biochemical composition of blood and increase the detoxification effect in the body of bulls on fattening should be in the diet with high levels of heavy metals together to introduce IEC celloviridin G20h at a dose of 70 g/t feed and adsorbent toxfin at a dose of 1 kg/t feed. At the same time, animals of the 3rd experimental group showed improvement of morphological and biochemical composition of blood and optimization of protective properties of their organism. The highest detoxification effect was obtained by co-feeding the tested drugs, so that in the blood of bulls of the 3 experimental group there was a significant (P<0.05) decrease in the concentration of zinc by 2.23 times, lead by 2.43 and cadmium by 3.00 times. At the same time, in no case in animals of the 3 experimental group in the blood there was no excess of MPC in terms of zinc, lead and cadmium.</p>

<p>In field studies found that when plowing green mass of green manure in leached Chernozem accumulates from 60 to 140 kg/ha of potassium exchange. Most of it is found in green manure pairs with phacelia and pea mixture. Only a couple of phacelia creates a positive balance of potassium in the soil, in other pairs, the deficit amounted to 30–80 kg/ha. Stocks of nitrate nitrogen in the soil was varied in the range of 60–80 kg/ha, and the highest they have been in the green manure a couple of phacelia. Nitrogen balance in soil in all green manure pairs is positive. The reserves of mobile phosphorus in pairs made up of 12–15 kg/ha, and its deficiency is 50–80 kg/ha. maximum yield capacity of wheat and its addition to a clean pair obtained in the green manure a couple of phacelia – 25 and 32 kg/ha and 25 and 46 %, respectively. To obtain high and stable yields of spring wheat, maintain potash status and a positive balance of nutrients in leached chernozems as green manure crops, it is advisable to recommend growing pea mixture and phacelia.</p>

<p>Tomato cultivation is a time consuming process, but high plasticity, yield, and a great variety of varieties make it possible to cultivate crops not only in the southern regions of the country, but also in the northern ones. Tomatoes, like other vegetable crops, are in dire need of periodic top-dressings, especially in the first period of growth and development. The health of the plant, as well as the future harvest and its quality, largely depend on the correct choice of fertilizers and the timing of their application.</p>