The study of all elements of animals is included within the scope of the scientific discipline known as zoology. Despite the fact that it is a very vast scientific discipline, zoology is really a subfield that falls under the more general umbrella of biology. Animal biotechnology is a subfield of biotechnology that involves the use of methods from molecular biology to the process of genetically engineering, or altering the genomes of, animals with the goal of making them more suitable for use in agricultural, industrial, or medicinal settings. The incorporation of animals into agricultural biotechnology is essential. It is put to use in the scientific and technical communities to bring about the creation of new species. This textbook on applied zoology and animal biotechnology covers a wide variety of topics, including but not limited to economically relevant livestock breeds, shifts in the paradigm of livestock production, the application of biotechnology to animal nutrition, and aided livestock reproduction. The application of genomics and GE technologies in cattle farming and management is another topic that receives a lot of attention in this book. This book presents the most cutting-edge techniques now available for farming poultry and shellfish. This book explores the potential of stem cell research and genetic engineering to improve the nutritional value of fish. Describes the biotechnology that is used in the production of food and milk.