The book "Rational use of secondary raw materials of dairy and meat processing industry in feeding young cattle" by Yuri Pavlovich Lazarev is a unique and in-depth study. which will become an indispensable assistant for specialists in the field of agriculture , Veterinary and Agronomics . This work not only highlights important aspects of the rational feeding of young animals, but also raises issues of sustainable development and efficient use of resources in the agro-industrial complex. In his work, Lazarev focuses on secondary raw materials that are formed in the process of processing milk and meat. He examines in detail how this raw material can be used to create a full-fledged diet for young cattle. Readers will be able to learn about the different types of secondary foods, their nutritional value, and the effects on animal health and development. The author gives many examples and scientific data, which makes the material not only theoretically sound, but also practically applicable. This book will be of interest not only to professional agronomists and veterinarians, but also to students of agricultural universities, as well as farmers seeking to optimize their production processes. It is suitable for those interested in modern agricultural practices, environmental aspects and resource management. Lazarev offers readers not only theoretical knowledge, but also practical recommendations that can be implemented in everyday practice. The topics raised in the book cover a wide range of issues: from the economic feasibility of using secondary raw materials to its impact on product quality and animal health. Lazarev emphasizes the importance of integrating science and practice, which makes his work especially relevant in the context of modern agribusiness, where efficiency and sustainability are becoming key success factors. The style of Yuri Pavlovich Lazarev is distinguished by clarity and accessibility, which allows even complex scientific concepts to be presented in an understandable form. His previous works have also been popular among specialists, and this book will not be an exception. Lazarev is known for his deep understanding of the subject and his desire for innovation, which makes his works valuable for everyone who wants to remain at the forefront of agronomic science. If you are looking for books on sustainable agriculture, Livestock Feeding or Resource Management , The “Rational use of secondary raw materials of the dairy and meat processing industry in feeding young cattle” will be an excellent addition to your library. This work will not only enrich your knowledge, but also inspire new ideas and approaches in your professional activities. In conclusion, Lazarev’s book is not just a collection of facts and data, but a real find for everyone who wants to deepen their knowledge in the field of livestock feeding and efficient use of resources. It opens up new horizons and offers a fresh perspective on familiar things, making it a must-read. Do not miss the opportunity to get acquainted with this important work and contribute to the development of sustainable agriculture!