Abstract

The question of the need for separate administration of feed additives’ components that are antagonistic from the point of view of their chemical properties and physiological effects has long been debated among researchers. The authors have proposed a new supplement based on chelate compounds, which components’ effect on the organism of laboratory animals has been partially considered earlier. However, the assessment of the components’ effects on the morphology of the excretory and reproductive systems’ organs has not been studied. In this regard, the work considered the effect of feed additive components with separate introduction of chemically and physiologically antagonistic components on the pathoanatomical picture, as well as the microstructure of the kidneys and testes of laboratory mice to assess potentially negative effects on the excretory and reproductive systems. The supplement was administered orally at various dosages. The organ structure was assessed after 1, 2 weeks and 1 month. The microstructure of the kidneys and testes was histologically studied in the experiment and control. The negative influence absence of the supplement components in the entire range of applied dosages is shown. The absence of visible deviations of the pathoanatomical picture during autopsy of experimental animals was noted.

Highlights

  • High productivity of modern animals requires replenishment of intensive metabolism needs with feed additives

  • A number of authors suggest the need for separate introduction of feed additives' components in connection with their possible chemical [7, 10, 16] and physiological [14] antagonism

  • Potentially negative effects may not manifest themselves at the macrolevel, being revealed during the analysis of animals' internal organs microorganization, including due to the accumulation of additives' chemical substances [13]

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Summary

Introduction

High productivity of modern animals requires replenishment of intensive metabolism needs with feed additives They are constantly being improved, new approaches are proposed. The expediency of maintaining trace elements in organic, chelated form has been shown [3, 5, 6] This makes it possible to reduce the dosage of the introduced components without negatively affecting the health and productivity of animals [15], which is important from the point of view of the supplements' ingestion into products and, into the human diet [11]. The authors analyze the effect on productivity and the elements' content in the blood and various organs [8] This determines the relevance of this work. As with the creation of any new product in such studies, it becomes necessary to assess both its positive and potentially negative effects on laboratory animals before carrying out production experiments on livestock in farm conditions, which determines the goals and objectives of this work

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