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Submit scientific paper, scientific publications, International Research Journal | Meždunarodnyj naučno-issledovatel’skij žurnal

ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ПИ № ФС 77 - 51217

INFLUENCE OF ENZYME PREPARATIONS ON THE QUALITY OF BROILER MEAT

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

The paper presents the results obtained in the study of the effect of enzyme preparations Sanzheim and Sunfise 5000 on the qualitative parameters of broiler chickens. The analysis of the chemical composition of the pectoral and leg muscles of experimental broilers was carried out. It was confirmed that as a result of the use of enzyme preparations, the content of dry matter and protein in meat of broilers of the 1st and 3rd test groups significantly increased. The improvement of the biological fullness of the broilers’ pectoral muscles of experimental groups was found. The tasting showed the positive effect of enzymatic preparations Sanzheim and Sunfise 5000 on the taste of meat and broth of poultry of experimental groups.

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EFFICIENCY OF INSTRUMENTAL INSEMINATION USE OF BEE QUEENS

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

The article describes the technique of breeding work at an apiary, and namely valuation of bee colonies, selection of male-bees and queens. The process of sperm extraction from male-bees and artificial insemination of bee queens is presented in the paper. Organizational and economic characteristics of the enterprise are provided. The effectiveness of the method of instrumental insemination is proved by calculating the costs of the method and the profit obtained from its use. We indicated an increase in the productivity of bee colonies. The results of the study of instrumental insemination of queens have shown that it is a very effective method of breeding bees.

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CONTENT OF POTASSIUM IN SOIL WITH THE USE OF RESOURCE-SAVING TECHNOLOGIES

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

It is customary to judge the fertility of soils, the integral index of which is the yield of top, both in natural biocenose and in agrocenose, based on the hydro-physical and agrochemical properties. Agrochemical parameters of effective fertility are mobile forms of mineral nitrogen, phosphorus and potassium. The content of potassium in soil depends on the soil-climatic conditions to a larger extent. The article discusses the effect of the soil treatment system in grain steaming rotation on the content of potassium in soil on the precursors of pure and sideral steam. The research was carried out at Kemerovo Research Institute, a branch of the Russian Academy of Sciences. Close relationship between the K2O content and moisture content in July and August (at hydrothermal index above 1), r=0.5200-0.8387 was established. When there is a lack of moisture, this relationship is reduced or absent. During two crop rotations irrespective of the soil treatment system, the content of mobile potassium is higher for the precursor than the sowing steam (clover) – 100-108 mg/kg soil; the combined minimal and minimum tillage systems have the advantage. The share of the predecessor’s influence on the content of mobile potassium in soil comprised 13.2%, the soil treatment system – 4.0%, crop rotation – 49.1%, relation between crop rotation and predecessor – 17.9%.

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PHYSICAL, HYDROPHYSICAL, PHYSICAL AND CHEMICAL PROPERTIES OF LEACHED CHERNOZEM

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

The physical, hydrophysical, psysical and chemical properties of leached chernozem, used in 11-field grain-grass-tilled crop rotation, are considered in the paper.It is found that in order to form the highly productive biocenosis, the soil has favorable physical (bulk density – 1.30 g/cm3, solid phase density – 2.67 g/cm3, total porosity – 51.9%, aeration porosity – 27.8%) and hydrophysical (total moisture capacity – 34.0%, lowest moisture capacity – 29.8%, maximum hygroscopicity – 9.49%, wilting moisture – 14.2%, active moisture range 15.6%) properties. The soil has good reserves of humus in the depth of A + B, equal to 468.2 tonnes/hectare, as well as a large amount of absorbed bases in the horizon Acult – 42.8 mg-eq/100 g, with predominance in the soil-absorbing complex of the Ca2+ cation, high magnetization of top soil χ=1,045×10-3 units. SI and is well provided with oxides of silicon, aluminum and iron.

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ROLE OF FIRES IN RENEWAL OF SUBORDINATE SCOTCH PINE

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

The results of Scotch pine natural regeneration study at fire-sites in sub taiga of the northwestern part of the Eastern Sayan are presented in the paper. It was found that the strongest fire exposure have a positive effect on forest formation of mixed herbs forests. Strong fire creates favorable conditions for the settlement of a new generation of forest species. Post-fire regeneration illustrates high potential of burnt ecotope regeneration. Strong fires mineralize soil organics and eliminate competitive environment of the indigenous ecotope giving positive dynamics to the succession process – the area is overgrown by willow-herb burns. Seedling growth of 4-5 years of age is characterized by high density, uniform distribution in the area and has good biometric indicators. The findings suggest favorable development of the initial research phase in forest formation in the examined burnt environment. The materials of field studies will help to determine measures necessary to promote natural regeneration of areas with dead planting in order to restore their biota.

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GROWTH OF SIBERIAN STONE PINE WITH INTER PLANTING IN THE SOUTH OF THE KRASNOYARSK TERRITORY

Posted in 2017, AGRICULTURE, Issue № 4(58) April 2017 | 0 comments

We have analysed growth dynamics of the Siberian stone pine of different geographic origins in the Training and Experimental Forestry Facility of SibSAU under the planting scheme of 2×1 m. The variability of the growth rates of the offspring of 11 populations aged 28 – 47 is determined. At the age of 47, the trees had an average height of 12.8 -18.5 m with a trunk diameter ranging from 8.3 to 16.8 cm, depending on geographic origin. High level of variation in the height and diameter of the tree trunk was observed in some variants (> 40%). The largest diameter of the trunk is that of the trees of Chita, Shumikhinsky, and Altaic (Kurly) origin. The intensity of plant growth at the age of 28 – 47 is significantly influenced by the geographical origin with the establishment of a change in ranks due to high competition of trees under the conditions of high planting density.

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