The Use of Magnetic Technology to Grow the Duckweed Lemna sp. Plant and Invest its Live Mass in Feeding Fish

Abstract

Magnetization enhances the energy of cells through its high ability to permeate materials to them. The vital processes in a living cell are directly proportional to the magnetic field. Magnetization affects various vital processes in the transfer of ions through the cell membrane. The study was conducted in the fish laboratory of the Department of Animal Production at the College of Agriculture and Forestry / the University of Mosul for a period of eight days. The duckweed plant (Lemna sp) was cultured with a weight of 5 + 1.25 g / liter in plastic tubs containing 25 liters of water in fish farming ponds by three treatments for the purpose of measuring the effect of the productivity of duckweed plant growth, and the percentage of nutrients in it when using magnetization 1500 gas with air pumping by means of an air pump. The results of the statistical analysis showed that there were significant differences (P≤ 0.05) for the experimental treatments, as the pH increased in treatment 4 and decreased in treatment 3 during the days of the experiment, and it was noted that the dissolved oxygen increased in treatment 1 and decreased in treatment 2 during the days of the experiment. The results showed that the temperature increased in treatment 3 and decreased in treatment 4 during period 2, and the electrical conductivity increased in treatment 4 and decreased during treatment 1 during periods 4, 6, and 8. The results indicated an increase in the total hardness values in treatments 2 and 3 during the trial days, and the calcium hardness values in treatments 4 and 5 also increased during periods 2 and 4. The results of the analysis showed an increase in calcium concentration in treatments 4 and 5 during periods 2 and 4 as well as treatments 2 and 5 in periods 6 and 8, and a decrease in treatments 2 and 3 during the experimental days for the concentration of chlorides. Through the results of the study, it was observed that the concentration of nitrates increased in treatment 3 during periods 2 and 4, and a decrease in sulfate concentration was observed in treatment 5 and 3 during periods 6 and 8. It was found that the concentration of phosphate treatment 2 increased during periods 2 and 4, the concentration of solids decreased during treatment 3 during the days of the experiment, and the percentage of fat, carbohydrates, and ash increased in treatment 1. While the percentage of protein in the treatment components 3 and 4 of the nutrients contained in the duckweed plant increased.