Ruminants and their derived products are essential sources of food and industrial raw materials worldwide. It is well-known that with the growth of the global population, the demand for beef and dairy products will continue to rise. Various forecasts predict further increases in this demand over the coming decades. To meet the world population's growing needs for meat and dairy, it is necessary to further enhance the efficiency and sustainability of ruminant livestock production. This book presents the latest scientific advancements in ruminant nutrition. Chapters address such topics as feeding solutions to improve the quality of animal-derived products and reduce harmful greenhouse emissions, the effects of heat stress on ruminants, the importance of animal health in ensuring the production of safe and high-quality food raw materials, and the intersection of nutrition and the leather industry.