近年来,我省渔业养殖发展较快。解放初期,养殖面积仅35.9万亩。1984年发展到231.25万亩,其中池塘占118.57万亩。但产量低而不稳,1984年亩产28.2公斤,池塘43.5公斤,低于全国平均水平。低产的主要原因是缺乏饵料蛋白。棉籽饼粕的蛋白质含量高(35—45％),氨基酸种类齐全(含有鱼类必需的10种氨基酸),是很好的鱼饵蛋白源。我国棉饼资源丰富,年产量约530万吨,居世界之 In recent years, the rapid development of fisheries in our province. In the early days of liberation, the breeding area was only 359,000 mu. In 1984 to develop to 231.25 hectares, of which 1,157,700 mu of ponds. However, the output was low and unstable. In 1984, 28.2 kg per mu and 43.5 kg ponds were below the national average. The main reason for low yield is the lack of feed protein. Cottonseed meal has high protein content (35-45%), complete amino acid (contains 10 amino acids essential for fish), and is a good bait protein source. China cotton cake rich in resources, annual output of about 5.3 million tons, ranking the world