1866. Initially stocked with wild-caught animals, the farm started breeding them in 1875.By the early 20th century, Hattori's farm had about 13.6 hectares of turtle ponds; it was reported to produce 82,000 eggs in 1904, and 60,000 animals of market size in 1907.

According to the report of the Japanese zoologist Kakichi Mitsukuri, who conducted a significant amount of research at Hattori's farm in the late 19th and early 20th centuries, the main food supplied to the turtles was crushed bivalve