03.00.00 Biological sciences
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Description
The article is devoted to the construction of nomograms for determining geometrical dimensions of electroisolator the amount of residual pathogenic microflora on the surface of plant substrates coreproducts
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Description
The article reports about the results of the new population of protected herb species studying in the Rostov region and in the Russian Federation - Cymbochasma borysthenica (Pall are given. ex Schlecht.) Klok. & Zoz (Orobanchaceae), registered in 2014 on the northern coast of Mius Liman in the Rostov-on-Don Region. The new habitat is located at considerable distance from the earlier known. The population area has about 200 sq. m, total number – more than 1000 uneven-age specimens of a seed and vegetative origin. Population consists of two cenopopulations one of which lives in community of transitional type from a timyannik to a stony steppe (association: Festuca valesiaca – Cleistogenes bulgarica – Cymbochasma borysthenica – Thymus dimorphus), another – as a part of the stony steppe (association: Festuca valesiaca + Agropyron pectinatum + Galatella villosa), created at the limestone shell rock exits. Cenopopulation in community of transitional type, despite the smaller area (50 sq. m), differs by more number and density. Both cenopopulations are similar in age ranges character and vitality of specimens. They belong to a normal type (capable to vegetative and seed self-maintenance) with a left-side age range that allows estimating them as rather stable, despite very limited area
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Description
In this article we have shown the results of studying of biologically active connections in bentonite clays, carotene containing raw materials for the purpose of receiving functional feed additive for agricultural birds
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Description
Milk protein hydrolysates are analyzed for the presence of low molecular weight fractions of peptides. Bioactivity is shown; the requirements for obtaining are streamlined; effect of peptides on the physical and chemical characteristics of kefir is revealed
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POLYMORPHISM IN PROMOTER OF PROLACTIN GENE AND ITS ASSOCIATION WITH PRODUCTION TRAITS IN CHICKENS
DescriptionProlactin (PRL) - is a peptide hormone. It effects on metabolic processes in mammals and birds. Indel genotype mutations in a prolactin gene were determined in 595 hens and cocks. Polymerase chain reaction (PCR) were used. We studied four different breeds: Cornish, White Russian, Pushkin, Yurlov crower. Homozygous of insertion II, homozygous deletion of DD and heterozygous ID were observed in all groups. The differences in frequencies of genotypes and alleles were observed in all groups. Homozygotes II and allele I (frequency is 0,83) were the most common for Russian white chickens with high egg production and the lack of the instinct of incubation. Prolactin gene deletion was more common for beef Cornish. The frequency of D allele was 0,84. Pushkin chickens proved to be closer to the egg type. A significant number of heterozygotes with this mutation were noted in a population of Yurlov crower. It is recommended to use gene prolactin as a marker of productive indicators in chickens
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Description
The article describes the structure of microbial communities in urban soils of Rostov-on-Don. The difference in numbers of bacteria of main trophic groups between the central part and the suburbs of Rostov-on-Don has been analyzed. The comparison with control soil with minimal anthropogenic impact has been performed. The indices of mineralization, oligotrophy, oligonitrophylic and pedotrophic quotients have been calculated
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Description
The efficiency of using of organic iodine and selenium as a part of a new “IODDAR-Zn” fodder additive and DAFS-25 preparation in goats feeding from the point of view of increasing quality of milk and dairy products is proved in the article. The technology of production of new dry sour-milk bioproduct from the goat milk, intended for children, is presented
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SEARCHING WAYS OF ECOLOGICAL FRUIT PLANTS PROTECTION IN ORGANIC GARDEN
DescriptionThe Codling moth monitoring, conducted with the help of injured fruits count and mail moths capture (with pheromone traps), is given in the article. We consider that pheromone traps reliably register the beginning of the Codling moth large flight (of each generation) at high temperature and little precipitation. The pheromone traps efficiency decreases at rather low temperature and showers. In organic and ecological orchards low density populations of injurious mites are under control of their natural enemies.
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Description
The theoretical analysis of the problem of disclosure of mechanisms of mutual influence of inoculative components on utility signs of the inoculate fruit-trees is carried out. New approaches of use of methods of biometric genetics for a prediction of their productivity according to characteristics of varieties and a rootstocks are offered
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Description
This study has investigated the relationship between culture media, technique of concentrating and freeze drying conditions for the cells of Lactobacillus aci-dophilus. The study has demonstrated that milk whey tomato juice-enriched medium has the high-growth properties. This medium allows ensuring high freeze drying survival of Lactobacillus acidophilus