Automatic feeding method and automatic feeding device

摘要

PURPOSE:To provide a method for automatically supplying a feed, capable of smoothly supplying the air bubble-free feed to an arbitrary place at an arbitrary depth in water. CONSTITUTION:This method for automatically supplying a feed comprises carrying the feed 10 with air, charging the air-carried feed 10 on the surface of water in a feed-supplying pipe 2 at such a rate as producing bubbles on the surface of the water, the tip 21 of the feed-supplying pipe 2 being set at a desired depth in the water, discharging the air from an air-discharging port 3 placed on the upper side from the vertically moving surface of the water in the feed-supplying pipe 2, precipitating the feed 10 along the feed-supplying pipe 2, and subsequently allowing the feed to flow from the tip 21 into the water.