1987年,美国人消费了三亿四千七百万公斤的虾。其中,76％的虾是进口的,其余的由美国渔民从海上捕捞和在内陆养虾场养殖。养虾的成本非常高。主要是饲料费用昂贵。好的虾饲料来自东亚,每吨要750美元以上。美国夏威夷的科学家谈,他们发现了一种降低虾饲料成本的方法。他们制出的新饲料虽然赶不上最好的饲料,其质量相当于300到450美元一吨的虾饲料。但成本每吨只要100美元。这种新型饲料的主要成份是榨完了糖的蔗渣。蔗渣经压碎,再配上蛋白质、脂肪和矿物质,然后 In 1987, Americans consumed 377 million kilos of shrimp. Of these, 76% are imported and the rest are harvested by the United States fishermen at sea and raised in inland shrimp farms. The cost of shrimp is very high. Mainly feed costs expensive. Good shrimp feed from East Asia, more than 750 US dollars per ton. Talking to scientists in Hawaii, United States, they found a way to reduce the cost of shrimp feed. The new feeds they produce, while keeping up with the best feed, are about the equivalent of 300 to 450 US dollars a tonne of shrimp feed. But the cost of only 100 US dollars per ton. The main ingredient of this new feed is pressed sugar bagasse. Bagasse crushed, matched with protein, fat and minerals, then