Veterinary Genetics is the scientific study of the principles of heredity and the variation of inherited traits among related organisms. This book containing different topics of veterinary genetics under one cover. The whole text matter is arranged in nine chapters. Efforts have been made to incorporate information on basic genetics, pathogens, animal breeding and genetics, gene therapy, gentics, genetics, immunology and diseases, genetics and molecular biology, application of transgenic animals, genetic disorders and pharmacogenetics. Important bibliography have been cited for detailed reading.