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Fish Culture in the United States
Tom Lovell
出版
American Association for the Advancement of Science
, 1979
URL
http://books.google.com.hk/books?id=1O57uAAACAAJ&hl=&source=gbs_api
註釋
The culture of channel catfish, trout, and crayfish is a well-established, profitable enterprise, but aquaculture provides only a fraction of the protein consumed by Americans, who prefer red meat. This situation could change, since pond-raised fish require less energy for protein synthesis than land animals, the supply of ocean food fish no longer appears inexhaustible, and fish culture can utilize resources unsuitable for other agriculture.