The use of food waste as a protein source for animal feed - current status and technological development in Japan

摘要

Food waste used to be well utilized as animal feed in Japan. The use of food waste, however, declined due to the introduction of commercial concentrate feed and high performance exotic breeds, accompanied by a change of producer's strategy in pursuingmore efficient production. The quantity and quality of food waste also altered due to a change in lifestyle. The system used in the past can no longer be applied. The relatively low price of imported animal products and feed, due to foreign currency rates, has also been disturbing the efficient use of food waste as animal feed in Japan.