Behavioral genetics is an interdisciplinary science that studies the influence of genetic factors on the behavior of living beings. In animal husbandry, this area plays an important role, helping to optimize selection processes and improve animal welfare. Genetic influence on animal behavior determines their stress resistance, adaptation to environmental conditions, as well as productive qualities such as growth, development and feed efficiency. Knowledge of animal behavioral characteristics allows for more accurate selection, ensuring better results in the production of meat, milk and other products. Research in behavioral genetics also contributes to improving animal welfare by minimizing stress and aggression, which in turn improves their health and productivity.