In recent years, egg production has been in the spotlight for animal welfare issues. While in most European countries the number of farms with free-range hens increases, in Spain 93% of laying hens are still caged. Added to this are the effects that the industry generates on the environment. A team of Spanish scientists reveals the environmental cost of egg production in a typical farm in Spain.
Farm-reared partridges are the object of a new study at the University of León, which has conducted an experiment to demonstrate whether it is possible to train these animals using adult ‘tutor’ birds to improve their survival in the wild. Their findings suggest that this system of learning is effective against their predators.