PURPOSE: To prevent environmental pollution by scattering of a powdery feed at meal and diseases caused thereby from occurring and promote growth by adding and mixing a prescribed amount of water with the powdery feed, providing a wet feed and supplying the resultant feed to feed boxes in a process for supplying the powdery feed from a powdery feed supply source to the feed boxes provided in pig pens.

CONSTITUTION: Water is added and mixed with a powdery feed in a process for supplying the powdery feed from a powdery feed supply source 1 to feed boxes 12... provided in pig pens 2... to afford a wet feed, which is then supplied to the feed boxes 12... An apparatus of the following construction is used for practicing the aforementioned method for supplying the feed. That is a powdery feed supplying source tank 1 is provided with a main conveying pipe 5 containing powdery feed conveying members (7a) and (7c), driven with a driving device 8 and built therein and branch pipes 6... branched from the aforementioned main pipe 5 are extended and arranged downward to storage tanks 4... respectively provided in the plural installed pig pens 2... Mixing devices 13... for mixing water (16b) with the powdery feed are interposed between the respective storage tanks 4... and the feed boxes 12... provided in the respective pig pens 2....