Intestinal microecology is the relationship of organisms to their animate and inanimate environment within the intestine. The concept of intestinal microecology originates in modern times with the work of Metchnikoff. His classic thesis on aging and intestinal putrefaction won the Nobel Prize late in the 19th century.1
In 1960, Haenel published a paper referring to the intestinal microflora and their effects on the host.2
However, it was not until 1970 that Luckey began to emphasize the importance of the intestinal flora within the ecology that exists within the gastrointestinal lumen.