The book “Iodine Effect on the Growth and Reproduction Function of Repair Pigs” by Smirnov is a unique scientific study that opens up new horizons in the field of veterinary medicine and animal husbandry. It examines in detail how iodine, as an important trace element, affects the health and productivity of pigs, making it an indispensable source of information for specialists in the field of agronomy, veterinary medicine and zootechnics. Smirnov, with deep knowledge in the field of zoology and veterinary medicine, invites the reader to plunge into the world of scientific research, where every aspect of the growth and reproductive function of pigs is considered scrupulously and from a scientific point of view. The book begins with an introduction to the topic, where the author explains the importance of iodine for the animal body, as well as its role in metabolism. The reader will learn exactly what processes in the body of pigs depend on this trace element and how its deficiency can adversely affect their health and productivity. Interestingly, this study is not limited to theoretical aspects. Smirnov includes in the book the results of his own experiments, which were conducted on various farms. These data support his findings and make them more convincing. Readers interested in the practical aspects of animal husbandry will find many useful recommendations in the book that will help optimize the diet of their animals and improve their health. The book will be especially useful for students of agronomic and veterinary universities, as well as for practicing veterinarians and zootechnicians who seek to increase the level of knowledge about the effects of trace elements on animal health. It can also be of interest to farmers and pig farmers who want to improve the productivity of their animals and increase the profitability of their business. The topics raised in the book cover a wide range of topics, from biochemistry and physiology to practical recommendations for feeding and caring for pigs. Smirnov emphasizes that the proper supply of iodine to animals not only contributes to their growth, but also affects their reproductive abilities, which, in turn, can significantly increase the effectiveness of pig breeding. The author's style is distinguished by clarity and accessibility, which makes complex scientific concepts understandable even for an unprepared reader. Smirnov skillfully combines a scientific approach with practical recommendations, which allows him to convey information to a wide audience. His previous work is also noteworthy, and many readers will appreciate his in-depth knowledge and passion for the topic. The book “Iodine Effect on the Growth and Reproduction Function of Repair Pigs” is not just a scientific study, but an important contribution to the development of animal husbandry. It opens up new perspectives for farmers and professionals seeking to improve the health and productivity of their animals. If you want to learn more about how micronutrients affect the body of pigs, and how this knowledge can be applied in practice, this book will be a real find for you. Do not miss the opportunity to immerse yourself in the world of science and practice that Smirnov offers, and discover new horizons in pig breeding!