History of dog food

Dog food refers to food specifically intended for consumption by dogs. Like all carnivores  dogs have sharp, pointed teeth, and have short gastrointestinal tracts better suited for the consumption of meat. In spite of this natural carnivorous design, dogs have still managed to adapt over thousands of years to survive on the meat and non-meat scraps of human existence and thrive on a variety of foods.

 The dog is neither wholly carnivorous nor wholly herbivorous,
but of a mixed kind, and can receive nourishment from either flesh or vegetables. A mixture of both is therefore his proper food, but of the former he requires a greater portion, and this portion should be always determined by his bodily exertions.

Barley meal, the dross of wheatflour, or both mixed together, with broth or skim'd milk, is very proper food. For change, a small quantity of greaves from which the tallow is pressed by the chandlers, mixed with their flour ; or sheep's feet well baked or boiled, are a very good diet, and when you indulge them with flesh it should always be boiled. In the season of hunting your dogs, it is proper to feed them in the evening before, and give them nothing in the morning you take them out, except a little milk. If you stop for your own refreshment in the day, you should also refresh your dogs with a little milk.
In England, care to give dogs particular food dates at least from the late eighteenth century.

Companies switched their promotional strategies to emphasize the convenience of canned and bagged foods. 'Feeding a dog is simple today," declared a Kasco dog food company advertisement. "It is unnecessary to cook special foods, measure this and that - why bother when it takes less than a minute to prepare a Kasco meal for your dog?" Calo dog food played on a similar theme, promising to do 'away with all the fuss and bother in preparing food for your dog." Ken-L Ration bragged about the lightning speed with which their dog food could be served and cleaned up, since it did not "stick to the feeding bowl [and is] easier than ever to mix.