The authors briefly describe the properties of polyhexamethyleneguanidine hydrochloride (PHMG), which refers to a broad-spectrum biocide and has antimicrobial activity against Gram-negative and Gram-positive bacteria, viruses and fungi. PHMG has a deodorizing effect, gives the treated surfaces long bactericidal effect, which can be stored depending on the surface and other external factors from 3 days to 8 months. The authors have presented data about the level of bacterial and fungal contamination of air in the dispensary before and after aerosol treatment of Roksatsin. Bacterial contamination of air dispensary determined via the sedimentation method (Koch Method), which is settling microflora (in air), under gravity, on the surface of a growth medium. For the determination of total bacteria and fungi in 1m3 of air the authors make calculations of total aerobic microbial count (TAMC) according to the formula that was proposed by V.L. Omelyanskii. Bacterial contamination of air was evaluated before disinfection. Accounting quality of aerosol disinfection performed by sedimentation microflora on Petri Dishes through 30, 60 and 120 minutes of exposition. In the analysis of the data the authors defined that Roksatsin as a disinfectant has a negative effect on pathogens, namely significantly reduced the content of pathogenic and conditionally pathogenic bacteria and fungi in the air, so it can be used for preventive and compelled aerosol disinfection of air in the livestock buildings
This article considers efficiency of realization of potential of credit relations in developing market economy which promotes credit system development, and necessity of qualitative credit products
The article results the study of irrigation regime im-pact on water consumption and yield of grain sor-ghum. It is established that optimal conditions for growth and development are created by maintaining soil moisture content in a soil layer of 0.6 m higher than 80 % of field capacity (FC), where the grain yield reaches 14 t/ha and the best indices of profit and cost-effectiveness are obtained
Implementation of investment projects is one of priority tasks for the entities as efficiency of their business depends on it. In agricultural industry the special attention in the present is required by rabbit breeding as it is the most perspective direction of development of livestock production because of rather high level of economic return. In article the factors determining prospects of this direction are considered. The comparative characteristic of different types of meat on the main indicators determining business performance is provided. Following the results of calculations the greatest indicator of profitability is determined by meat of rabbits. Follows from the provided data that in Russia positive dynamics of development of rabbit breeding is noted, at the same time the existing production volumes don't satisfy the need of the population for complete amount. The directions of specialization of rabbit breeding and their characteristic features are determined. The main factors constraining rabbit breeding development are considered. One of the possible directions of their decision can consider the developed investment project of a construction of a farm of rabbits. Calculations of efficiency the farms of rabbits of different scale are made. The indicators reflecting results of their implementation for the entities are analyzed. Possible risks of the investment project are estimated and the most acceptable methods and acceptances of decrease in their degree in this situation are offered
To increase productivity and quality, as well as to reduce the cost of production of winter wheat in the Central irrigated zone of the Rostov region is of great importance to find the most effective methods of agricultural culture, in particular, the protection of crops from weeds. The work determines most effective herbicides for pre-germination use against annual dicotyledonous, including resistant to 2,4-D and MCPA, and some perennial root-spray weeds in the Central irrigated zone of the Rostov region. The efficiency of different terms of application of the herbicide called Ballerina on winter wheat crops in the Central irrigated zone of the Rostov region was studied. The greatest biological effectiveness of herbicides is provided by spraying winter wheat crops in the tillering phase with Ballerina herbicide with the norm of 0.3 l/ ha. We have discovered low biological effectiveness of Gerbitox herbicide against Matricaria inodora (L.), Fumaria officinalis (L.), Artemisia vulgaris (L.) and Cirsium arvense (L.). Best experience quality indicators of winter wheat grain were observed in the variant with the lowest contamination of crops when spraying in the phase of tillering a Ballerina herbicide 0.3 l/ha. The content of trash was 7.1%, nature 790 g/l, gluten content of 26.4 %, group 2 quality, and the commodity class – 3. Good quality indicators were also observed in the variant with Ballerina herbicide treatment of 0.5 l/ha in the tube exit phase. The highest level of profitability was obtained when spraying winter wheat crops in the tillering phase with Ballerina herbicide 0.3 l / ha-116%, and the lowest on the control was without treatment with herbicides - 74%
In the article we present the results of perennial researches on the influence of norms of fertilizers on growth and productivity of sunflower on Chernozem (Black soil) with different levels of fertility in the Central zone of the Krasnodar region. The improvement of nutritional status of plants promoted increase in leaf area of sunflower in the flowering stage from 20.1 to 30.8 thousand m2/ ha and more accumulation of dry substances and major nutrients in plant tissues throughout the growing season. The greatest influence on the content of nitrogen and phosphorus in the leaves of 56 – 64 and 50 – 58%, in stalks of 40 – 62 and 39 – 42%, in baskets 43 – 59, and 38 -68%, respectively, provided the rate of fertilizer. The yield of sunflower seeds in average for three hybrids (Kubanskiy 341, Triumph, Legion) evolved in experiment parcels from 25.5 to 33, 4 ac./ha. The highest productivity of this crop is obtained when a high rate of fertilizer (N80Р120) is applied on soil with a high level of fertility. The increase of seed yield compared to control was 7.9 ac./ha or 30.9 %. While increasing the level of soil fertility and fertilizer amount, oil content of the seeds decreased from 46.9 to 44.5%, but the yield of oil increased from 1.20 to 1, 47 T/ha due to the growth of productivity
Ferrourtikavit is a biologically active additive (BAA)
derived from common nettle supplemented with micro
nutrient elements (titanium, vanadium, molybdenum,
zinc, copper, iron, tin, chromium, manganese, barium).
Ferrourtikavit is manufactured from local vegetable
raw materials, however its application in feeding dairy
cows is not sufficiently studied. Therefore, the
application of the BAA ferrourtikavit in animal
feeding with a view to increase milk production is
relevant. The aim of the research conducted is to
investigate the impact of the BAA ferrourtikavit on the
overall nutritional value of animal diet and reduction
of food consumption. The experiment was conducted
on four groups of black-motley breed dairy cows.
Formation of the experimental groups (15 animals per
each group) was performed on the third lactation,
taking into account age, productivity during the
previous lactation, breed characteristics, live weight.
The main diet consisted of hay, haylage, succulent
fodder, concentrates. Additionally to basic diet the 2nd
,
3
rd and 4th experimental groups obtained the BAA
ferrourtikavit at the doses of 0,25, 0,50 and 0,75 mg/kg
of live weight, respectively. It has been established
that the animals from the experimental groups (2nd, 3rd
and 4th) consumed 43,9-51,3 energetic feed units less,
439,4-513,5 MJ metabolic energy less, 56,4 – 62,0 kg
dry matter less, 1,1 – 1,6 kg digestible protein less.
The lowest feed consumption was noted among the
animals from the 3rd experimental group, in the basic
diet of which the BAA ferrourtikavit in an amount of
0,50 mg/kg of live weight was introduced. The research conducted established, that application of the
biologically active additive ferrourtikavit in the diet of
lactating cows at the dose of 0,5 mg/kg of live weight
led to the highest milk yields 4678±45,17 kg. In the
experienced groups, increase in milk yields, decrease
in concentrates' utilization as well as costs of 1 kg milk
as compared to the control group were registered
In article results of influence of various types of hybrids on efficiency of a sugar beet depending on cleaning terms are resulted, and also their economic estimation is given
In the article results of a comparative study of technologies of cultivation of sunflower with application and without application of herbicides are resulted, and also their economic assessment is given
The influence of four experimental phage preparations, designed based on non-transducing E. coli bacteriophages on pigs with post-weaning diarrhea studied. The influence of these phages in depending by methods of its applying (per os and intra cutis) on coli-titer and coli-phages titer studied. It is established, that the best survival rate and the clinical condition showed animals treated with the E. coli phage T4-type with lab. number «8» (till 5,52 lg CFU/g at 37-days age) in parallel with an increase in titer of phages (till 5,73 lg CFU/g at 40-days age). Intradermal (intra cutis) method of applying of experimental phage preparations (constructed on basis of phage “6” and phage “8”) showed the some positive effects on correction of negative dynamics of coli-phages titer in control group