Since the mid-20th century, pet foods have been produced in the USA and Europe, and today the majority of industrialised nations have pet food production facilities. They were created from nutrient-based animal feeds that were produced for animals. Due to the intimate bond between pets and their owners, certain sensory criteria were developed to draw in customers.
Although there are many different kinds of pets in the modern world, cats and dogs vastly outnumber all other animal species in terms of manufacturing of pet food, with global sales exceeding five billion pounds. Fish, small mammals like rabbits, guinea pigs, and ferrets, birds, and then the products start to converge with animal feeds for farm animals and reptiles make up the next levels of pet foods.