This book presents an overview of animal biotechnology and genetic engineering, examining how these fields contribute to advances in agriculture, medicine, and scientific research. It explores techniques such as genetic modification, cloning, and molecular breeding, highlighting their applications in improving livestock productivity, disease resistance, and biopharmaceutical production. The text also considers the ethical and environmental implications of biotechnology, encouraging readers to reflect on responsible innovation. By integrating scientific foundations with case studies and applied examples, it provides a well-rounded perspective on the potential and limitations of genetic engineering. The discussion emphasizes the importance of balancing technological progress with sustainability and animal welfare. Designed for researchers, students, and professionals, the book serves as a comprehensive guide to understanding the science, practice, and implications of animal biotechnology in contemporary contexts.