The history of dog food?

one

In 1860, James Spratt, an electrician from Cincinnati, USA, went to London to sell lightning rods. When the ship arrived in England, he accidentally found that his dog especially liked to eat biscuits discarded by sailors. So he had an idea, quickly brought flour, vegetables, meat and water, mixed them together, and began to manufacture and sell dog food. The first commercial dog food in human history was born.

two

After 62 years, in 1922 of the 20th century, chappel brothers returned the remaining meat as dog food to the United States while providing canned horse meat to refugees from France, the Netherlands, Italy and other countries. In its heyday, the company could slaughter up to 50000 horses a year.

three

In 1954, Ralston Purina tried to mix emulsified animal liver, skimmed milk, soybean powder and other raw materials into rice flour, salt and sugar, mix them into slurry, and then dry them on the asphalt floor. The imitation taste is similar to popcorn and is deeply loved by pet dogs.

four

In 1957, Americans applied the puffing technology in food to pet food, and the first bag of puffed dog food in the world came out. Since then, pet food produced by puffing process has occupied the main position of pet food with its absolute advantages of comprehensive and balanced nutrition, convenient feeding and saving time. Thirty years later, in 1987, the annual sales of dog food in supermarkets alone in the United States reached $2.7 billion, with a sales volume of 2.64 million tons.