Influence of organic and non-organic microelements on productivity and metabolic processes in growing young pigs

Abstract

The purpose of our research was to determine the effect two different complexes of elements of copper, zinc, iron, manganese, selenium by organic and mineral origin in feeding mixture “SK-4” on growing pigs productivity, metabolic state and mineral deposition in their organs. We formed two groups of growing pigs, 40 heads each, with an average live weight of 13.6 kg at the age of 42 days. In addition to the main diet, the experimental animals were fed by two premixes of enriched mineral (in the form of sulfates) and organic (as chelates) complex of trace elements. In growing period, the pigs from control and experimental groups were kept in equal conditions. Within 56 days of experiments the productivity of animals was depended on feeding, whereas the use of organic complex increased the average daily live weight gain by 6.3% (p≤0.01) with simultaneous decrease in exchange of energy costs by 6.4%. In the experimental group, the feeding with organic form of trace elements contributed to the increase in blood: erythrocytes - by 4.8% (p≤0.01) and hemoglobin - by 15% (p≤0.001) during the whole research period. We proved that the addition of chelate forms to the diet of growing pigs provided greater deposition of trace elements in their organs, which allowed reducing the excretion of trace elements, which is confirmed by the changes in histological sections. The results of our study showed that organic elements were more effective in terms of pigs production and health, and fully meet their needs in essential elements.