The book “The exchange of substances and productivity of young pigs depending on the sources of protein, iodine and copper in the diet” by Semyon Petrovich Vasilyev is a unique study that immerses the reader in the world of animal husbandry, revealing important aspects of feeding and metabolism of pigs. This publication will be a real find for specialists in the field of veterinary medicine, agronomy and zootechnics, as well as for undergraduate and postgraduate students seeking to deepen their knowledge in this important area. Vasiliev, known for his deep scientific research and practical recommendations, in this book raises questions about the metabolism of young pigs. It analyzes how different sources of protein, as well as the addition of trace elements such as iodine and copper, affect animal health and productivity. The reader will be able to learn how to properly balance the diet in order to achieve maximum efficiency in the production of pork, which is especially important for modern farmers and owners of pig farms. The book is written in accessible language, which makes it understandable even for those who do not have deep knowledge in the field of zootechnics. However, despite the simplicity of the presentation, the work is filled with scientific data and research, which gives it a high value. The author not only shares the results of his experiments, but also offers practical recommendations that can be easily implemented in everyday practice. The topics raised in the book cover a wide range of issues related to pig metabolism. Vasilyev examines in detail how the lack or excess of certain substances can affect the growth and development of young animals, as well as their overall productivity. This is especially important in the context of modern animal husbandry, where every detail can play a decisive role in the success of the business. Readers will be able to see how proper feeding can not only improve animal health, but also increase economic efficiency of production. This book will be of interest not only to professional zootechnicians, but also to students of agronomic and veterinary faculties, as well as to anyone who is interested in modern methods of farming. It will be an excellent addition to the training materials and will help future specialists to better understand how to organize animal feeding for the best results. Semen Petrovich Vasiliev is the author of many scientific publications and books devoted to animal husbandry and animal feeding. His work is distinguished by in-depth analysis and a practical approach, which makes them in demand among specialists. In this book, he continues his tradition of combining theory and practice, which allows readers not only to get acquainted with scientific data, but also to apply them in real life. If you are looking for information about , How to Improve the Productivity of Pigs (CM) how to properly organize their feeding and what micronutrients are necessary for their health , The exchange of substances and productivity of young pigs, depending on the sources of protein Iodine and copper in the diet "will be your reliable assistant . This publication will not only expand your knowledge, but also help you become more successful in your professional activities. Do not miss the opportunity to get acquainted with this valuable work, which, of course, will take a worthy place in the library of every specialist in the field of animal husbandry.