scholarly journals VETERINARY AND SANITARY EXAMINATION OF SHEEP MEAT AND THE CONTENT OF HEAVY METALS IN IT WHEN USING A MODERN FEED ADDITIVE

2021 ◽  
Vol 248 (4) ◽  
pp. 268-271
Author(s):  
D.D. Khairullin ◽  
◽  
Sh.K. Shakirov ◽  
I.R. Kadikov ◽  
I.F. Vafin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Quantitative Analysis ◽  
Maximum Permissible Concentration ◽  
Feed Additive ◽  
Sheep Meat

The purpose of the study was to conduct a veterinary and sanitary assessment of sheep meat and to study the quantitative analysis of the content of heavy metals in animal meat. To do this, experiments were conducted in LLC "SHP Lukoz" of the Sernursky district of the RME on sheep. Experienced yarkas received an experimental feed additive UVMC "VITA-Balance" for 45 days. By the end of the experiment, the animals were slaughtered. The results of the study found that the sheep meat when using a modern feed additive meets the requirements of GOST 7269-2015. The data obtained indicate that no excess of the maximum permissible concentration of heavy metals was detected in sheep meat when using an experimental feed additive.

scholarly journals Use of Post-Extraction Fir Wood Greenery Residues by the Bioconversion Method with the Production of Feed Additives

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 272
Author(s):  
Olga O. Mamaeva ◽  
Elena V. Isaeva
Keyword(s):  
Heavy Metals ◽  
Weight Loss ◽  
Maximum Permissible Concentration ◽  
Forest Resources ◽  
Feed Additives ◽  
Feed Additive ◽  
Pleurotus Pulmonarius ◽  
Balsam Poplar ◽  
Fallen Leaves ◽  
Protein Feed

The effectiveness of forest resources depends on the comprehensiveness and rationality of their consumption and processing into finished products. This article discusses the problem of using solid fir wood greenery residues generated during the industrial production of essential oils. Bioconversion is considered to be the most promising use. The objective of this research was to study the chemical composition of bioconversion products of fir wood greenery-based substrates. The РР-3.2 strain of Pleurotus pulmonarius (Fr.) Quél was used as a biodestructor. In the process of bioconversion, the contents of polysaccharides and lignin substances is reduced to 38% and 28%, respectively. Up to 20% of protein accumulates in bioconversion products of fir wood greenery. The amount of nucleic acids is not more than 1.5 g per kg; the contents of heavy metals, such as mercury, cadmium, arsenic, and lead, do not exceed the maximum permissible concentration standards. The substrate weight loss reaches 15%. When fallen leaves and post-extraction poplar bud residues are added to the substrate, the substrate-destroying activity of fungi increases, and the protein content increases by 3%. The digestibility of products as a result of bioconversion increases 1.6–2.8 times depending on the substrate composition. The obtained data support the recommendation of post-fermented substrates based on fir wood greenery and balsam poplar biomass for use as a protein feed additive.

scholarly journals Utilisation of Post-extraction Fir Wood Greenery Residues by the Bioconversion Method with the Production of Feed Additives

2021 ◽  
Author(s):  
Olga O. Mamaeva ◽  
Elena. V. Isaeva
Keyword(s):  
Heavy Metals ◽  
Weight Loss ◽  
Maximum Permissible Concentration ◽  
Forest Resources ◽  
Feed Additives ◽  
Feed Additive ◽  
Pleurotus Pulmonarius ◽  
Balsam Poplar ◽  
Fallen Leaves ◽  
Protein Feed

The effectiveness of forest resources depends on the comprehensiveness and rationality of their consumption and processing into finished products. This article discusses a problem of utilising solid fir wood greenery residues generated during the industrial production of essential oils. Bioconversion is considered to be the most promising utilization method. The objective of this research was to study the chemical composition of bioconversion products of fir wood greenery-based substrates. The РР-3.2 strain of Pleurotus pulmonarius (Fr.) Quél was used as a biodestructor. In the process of bioconversion, the contents of polysaccharides and lignin substances is reduced to 38 and 28 % respectively. Up to 20 % of protein accumulates in bioconversion products of fir wood greenery. The amount of nucleic acids is not more than 1.5 g per 1 kg, the contents of heavy metals, such as mercury, cadmium, arsenic, lead, do not exceed maximum permissible concentration standards. The substrate weight loss reaches 15 %. When fallen leaves and post-extraction poplar bud residues are added to the substrate, the substrate-destroying activity of fungi rises, as well as the protein content increases by 3 %. The digestibility of products as a result of bioconversion increases 1.6–2.8 times depending on the substrate composition. The obtained data enable to recommend post-fermented substrates based on fir wood greenery and balsam poplar biomass for use as a protein feed additive.

scholarly journals Quantitative Analysis of heavy metals in gallstone Using LIBS

2021 ◽  
Vol 1963 (1) ◽  
pp. 012089
Author(s):  
Hawraa J. Naser ◽  
Tagreed K. Hamad
Keyword(s):  
Heavy Metals ◽  
Quantitative Analysis

scholarly journals HYDROCHEMISTRY OF THE PYANJ TRANSBOUNDARY RIVER UPSTREAM, MIDDLE AND DOWNSTREAM AND THE CRITERION ITS USE FOR IRRIGATION

2021 ◽  
Vol 445 (1) ◽  
pp. 114-120
Author(s):  
I. Sh. Normatov ◽  
V.V. Goncharuk ◽  
N.A. Amirgaliev ◽  
A.S. Madibekov ◽  
A.I. Normatov
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Samples ◽  
Alkali Metals ◽  
Alkaline Earth ◽  
Maximum Permissible Concentration ◽  
Agricultural Land ◽  
Transboundary River ◽  
Formation Zone

The water quality of the transboundary Pyanj River in the formation zone and along the riverbed before merging with another tributary of the transboundary Amu Darya River-the Vakhsh River was studied. The water quality on the upstream river corresponds to the very soft class (> 1.5 mmol/dm3) and in the middle and the downstream to the soft class (1.5-3.0 mmol/dm3). At the upper, middle and lower reaches of the Pyanj river the concentration of alkaline earth exceeds alkali metals (Ca2+ + Mg2+> Na+ + K+) at HCO3- > SO42- + Cl- and according to the Handa classification they are characterized by temporary rigidity. To assess the criterion of applicability of the Pyanj river water for irrigation the coefficient of sodium adsorption (SAC) was calculated for water samples from the upstream (Khorog), middle (Darvaz) and the downstream (Lower Pyanj) of the Pyanj river that were equal to 0.88; 1.07; 1.71, respectively. The SAC values for all water samples (from the upper, middle and lower reaches) of the Pyanj river indicate their good qualities for irrigation of agricultural land. The concentration of heavy metals in the Pyanj river is significantly lower than the maximum permissible concentration (MPC).

scholarly journals MONITORING OF SOILS CONTAMINATION OF SOME REGIONS OF THE REPUBLIC OF ARMENIA WITH HEAVY METALS

2017 ◽  
Vol 17 ◽  
pp. 275-283
Author(s):  
G. A. Hambaryan ◽  
A. V. Santrosyan ◽  
Yu. R. Ishkhanyan
Keyword(s):  
Heavy Metals ◽  
Maximum Permissible Concentration ◽  
Chemical Elements ◽  
Ecological Monitoring ◽  
Ecological Condition ◽  
Background Concentration ◽  
Climatic Zones ◽  
Paradoxical Situation ◽  
Maximum Permissible Concentrations ◽  
The Republic

The paper is devoted to the problems of soils contamination of some regions of the Republic ofArmenia and a city of Yerevan with heavy metals. The results of analyses of the selected soil tests for the purpose ofdefinition of their contamination degree with heavy metals are listed. The statistical data on the background concentration of heavy metals in various soil-climatic zones of the Republic of Armenia, not influenced with appreciable anthropogenous impact is also given. The comparative analysis on presence of polluting chemical elements in soil is carried out for the approved norms of maximum permissible concentration and background indicators. The authors consider possible negative influences on environment as a result of soils contamination, in particular on biological activity of soil and processes of its self-cleaning. It’s noticed that maximum permissible concentrations are mainly developed only from hygienic positions which do not consider the variety ofsoils, in particular, their properties. As an example there are described the results of soils researches of some regions of the Republic of Armenia and there is noticed that a paradoxical situation arises when background contents toxic elements in soils exceed the established values of maximum permissible concentration. In the paper there is arisen the question on necessity of working out and introducing in practice ecological monitoring of the system of tentatively permissible quantity of chemical elements in soil, taking into account background concentration of heavy metals in various soil-climatic zones. Introduction of the specified system will allow reasonably and, what very important, reliably to estimate an ecological condition of soils and to define the influence of contamination on qualitative characteristics of soil as a result of anthropogenous influence.

scholarly journals Effect of Diatomite on the Accumulation of Lead and Cadmium in the Body of White Rats

2021 ◽  
Vol 37 ◽  
pp. 00144
Author(s):  
Vasily I. Dorozhkin ◽  
Natalia A. Brichko ◽  
Natalia S. Pavlova ◽  
Galina I. Pavlenko
Keyword(s):  
Heavy Metals ◽  
Animal Husbandry ◽  
Cadmium Accumulation ◽  
The Body ◽  
Feed Additive ◽  
Lead And Cadmium ◽  
White Rats ◽  
Accumulation Of Metals ◽  
Livestock Products ◽  
Cadmium And Lead

Every year, pollution by eco-toxicants of natural and anthropogenic origin is becoming more and more acute. Some of the most toxic among them are heavy metals, especially cadmium and lead. These elements do not decompose. Once released into the environment, these elements continue to circulate in water, soil, and air for a very long time, accumulating in plants and livestock products. Therefore, there is a problem of obtaining safe agricultural products in areas contaminated with heavy metals. In animal husbandry, synthetic and natural enterosorbents are used for obtaining safe products. For example, such enterosorbents are shungites, bentonites, diatomites, clays. We tested diatomite from the Kamyshlovskoye deposit at a dose of 5.0 g/kg of feed to reduce cadmium accumulation and lead during their combined intake. We investigated the feed intake of a combination of cadmium and lead at doses of 5.0 and 50.0 mg/kg feed. The result of this experiment is the accumulation of metals in the liver, kidneys, and bones, and, in addition, in the testes. The use of diatomite to reduce the accumulation of heavy metals has not been successful. There is an increase in lead accumulation in the liver, kidneys, and testes. The content of cadmium in diatomite is 3.86 ± 0.20 mg/kg, lead – 105.0 ± 7.2 mg/kg. The results obtained indicate that diatomite as a feed additive to reduce lead and cadmium intoxication did not show protective properties.

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