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UDC: 632.2:502:519.2 |
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REFERENCES АРА style:Mamenko, O. M., Portianyk, S. V., & Onyschenko, A. O. (2024). Otsinka ekolohichnoho ryzyku za dopomohoiu koreliatsiinoho analizu kontsentratsii svyntsiu ta kadmiiu v ahrobioheotsenozakh [Assessment of environmental risk using correlation analysis of plumbum and cadmium concentrations in agrobiogeocenoses]. Svynarstvo i ahropromyslove vyrobnytstvo [Pig Breeding and Agroindustrial Production]. Poltava, 4(82), 21-37 [in Ukrainіаn]. doi: 10.37143/2786-7730-2024- 4(82)2
O. M. Mamenko doctor of agricultural sciences, professor feeding, physiology of animal nutrition and feed production,
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Abstract Scientists from various countries around the world are paying significant attention to assessing environmental risks associated with pollution by various contaminants, including heavy metals, which cause considerable harm to agrobiogeocenoses and overall environmental safety. The environmental situation in different regions o f Ukraine remains tense not only due to technogenic factors and intensive agricultural production, but also as a result o f ongoing military actions. Therefore, the assessment o f environmental risk in agrobiogeocenoses using the results o f laboratory chemical analysis o f dairy cow feed and its organic waste for cadmium andplumbum concentration obtained in scientific and economic experiments is significant from the point o f view o f science and practice. Correlation analysis o f the obtained research results is one o f the most important methods o f statistical data processing. It makes it possible to quickly establish the strength o f the relationship between the variable Y (content o f heavy metals in organic waste) and the vector variable X (content o f heavy metals in dietary feed), and the statistical significance o f the correlation between these indicators. Correlation analysis as a method o f predicting soil load with heavy metals, identifying likely sources o f pollution, and the dynamics o f pollutant dispersion in the environment is used in environmental monitoring by scientists from the United States, the European Union, China, and other countries. Objective o f the study was to assess the environmental risk o f soil contamination o f agrobiogeocenoses after the use o f organic fertilizers based on the analysis o f the strength o f correlation between the content o f cadmium and plumbum in animal feed and their organic waste. Methods. The experiments were conducted on productive dairy cows with different types offeeding. The diet included feed containing polutants. The ecotoxicity o f cadmium and plumbum caused their transfer from the dietary feed to the animal body and organic livestock waste. Chemical analysis o f samples o f plant and animal origin for the content o f heavy metals was performed by atomic absorption spectrophotometry. Statistical data processing was performed using the STATISTICA software package version 10.0. The nonparametric Spearman's rank correlation coefficient, which is reliable for small samples, was chosen for calculation. Results. The analysis o f statistical data showed a probable high (r=0.66-0.75 for cadmium and r=0.66-0.77for plumbum), very high (r=0.83 for cadmium and r=0.83 for plumbum) correlation between the content o f ecotoxicants in dietary feed and organic waste. Conclusions. Statistical data processing with the function o f non-parametric Spearman's rank correlation analysis established a high and very high correlation between the studied indicators o f cadmium and plumbum in dairy cow feed and organic livestock waste, which makes it possible to assess and predict the environmental risk o f soil pollution by pollutants when applying large amounts o f organic fertilizers to fields for agricultural crops Key words: feed, diet, plumbum, cadmium, environmental safety, dairy cows, heavy metals. |
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THE INTERDEPARTMENTAL SUBJECT SCIENTIFIC DIGEST
PIG BREEDINGand agroindustrial production
and agroindustrial production
