Animal biotechnology has been used to produce genetically modified animals that synthesize therapeutic proteins, have improved growth rates or are resistant to disease. This book deals with introduction to biotechnology, scope of animal biotechnology, importance given to animal biotechnology, requirements of cloning vector, characteristics of a vector used in animal genetic engineering, gene transfer methodology, detect desired DNA, RNA and proteins by blotting techniques, basic procedure of hybridization, screening of DNA library, polymerase chain reaction and their types with applications, animal tissue culture technology and their uses, transgenic animal technology, gene therapy, bioethics and intellectual property rights.