This text focuses on various aspects of animal heredity, or the passing of traits from one generation to the next. The book encompasses topics such as genetic variability, genetic testing, and animal breeding. Animal Genetics offers genetic testing services for Avian DNA sexing and diseases, Canine inherited traits and diseases, and Equine coat color and inherited disorders. The breeding and genetics is known for its historical and recent accomplishments in application of classical quantitative genetics for improvement of beef, swine, and dairy animals. Once an animal is born with a good trait, that trait can be passed to the next generation. Over time, more animals in the herd will be born with that good trait. This helps producers achieve their breeding goal. The process of selecting animals based on their genetics has helped advance agricultural productivity over the past 50 years.