Lifetime electrophysiological assessment of the level of contaminants in the body of sheep
Authors: Konovalov K. , Mamaev A. , Меrzlenko R. 
Published: August 2022

Purpose: the research was conducted to study the content of contaminants - arsenic As, cadmium Cd, copper Si, lead Pb, zinc Zn, in the body of sheep with different bioelectric activity of superficially localized biologically active centers and to study the meat productivity of experimental sheep.

Materials and methods. Research was conducted at the number of sheep of the Romanov breed. As a result of the examination of the lamb, autumn oster, Romanovsky breed, 6 - 6.5 months of age, two experimental groups are formed by the level of biopotentials - high and low (control), seven heads in each. Based on the metamer and structural organization of centers, the segmental theory of the relationship of nervous centers with various organs and systems of the animal organism, superficially localized biologically active centers (plubs) of young sheep, located in the areas of the greatest number of plexus of sympathetic and parasympathetic nervous systems. The dimension of the bioelectric potential Plbats was carried out in the morning (before feeding) for 3 days in a row using the ELAP device. Topographic search and measurement of bioelectric potential. At the end of the procedures for measuring the level of bioelectric potential in the Plbats, three heads of experienced animals from each group were slaughtered, on the basis of control slaughter, the quantitative characteristics of meat productivity were studied, and then they selected samples of organs and tissues for further research. On the day of slaughter, selected samples (liver, the longest back muscle and femoral bone) were transferred to the laboratory to determine the content of arsenic AS, cadmium CD, PB lead, and zinc zn on an atomic-emission spectrometer with an inductive ICAP 6300 Duo plasma .

Results. The amount of contaminants in liver samples, the longest back muscle and femur bones of Romanov sheep aged 6-6.5 months with different levels of bioelectric potential of superficially localized biologically active centers was studied. In experiments, it was found that in animals with a higher concentration of heavy metals and arsenic in the organs, the average bioelectric potential of the centers is significantly higher than in animals with a low average bioelectric potential of the centers. The highest concentrations of contaminants were recorded in the bone tissue of animals with a lower bioelectric potential of centers that significantly differed in this indicator from sheep with a higher average bioelectric potential. As a result of the conducted studies, an inverse correlation was established between the average level of bioelectric potential of superficially localized biologically active centers and the content of contaminants in the body of Romanov sheep raised in the Livensky district of the Oryol region.

Conclusion. The data obtained allow us to develop an inexpensive method for rapid assessment of the degree of accumulation of contaminants in the body of sheep at an early age, and timely take measures to adjust the concentration of contaminants in slaughter products.