Modern poultry farming systems have progressively created optimal conditions for healthy and stress-free growth of animals that do not have to struggle to find abundant, safe, controlled and well-distributed food and water supplies in the breeding area to avoid the stress of competition for food. The poultry sector is the most advanced in animal welfare. Farmers work to provide a healthy and safe environment for the animals and at the same time to receive a fair profit from their work. These two objectives are closely linked because in order to make a profit from a farm it is necessary to comply with dozens of rules and cares to protect the animal’s health. However, we are talking about animals bred for our food, and if they are not healthy, they cannot be sold.