【摘要】 在广西防城港市企沙镇进行斑节对虾 (Penaeus monodon)和日本对虾 (Penaeus japonicus)轮换养殖试验。虾池为砂质土池 ,圆形或椭圆形 ,虾池深 2 .4 5 m,每口池面积 0 .4 0～ 0 .82 hm2 。每池中心有一个排水和排污系统 ,池堤内斜坡用水泥预制板衬砌。斑节对虾于 1998年和 1999年的 4～ 5月放苗 ,平均放苗密度分别为 73.97尾 /米 2和 6 0 .14尾 /米 2 ,平均养殖天数分别为 12 8d和 12 4 d;日本对虾于 1998年和 1999年的 8～ 9月放苗 ,平均放苗密度分别为 31.0 0尾 /米2 和 34.13尾 /米 2 ,平均养殖天数为 112 d和 110 d。结果表明 ,斑节对虾的成活率为 5 5 .0 2 %和 5 6 .0 0 % ,单位产量 6 2 4 .30 g/ m2 和 6 0 1.5 5 g/ m2 ;日本对虾的成活率为 4 4 .5 6 %和 4 4 .93% ,单位产量 113.0 7g/ m2和 12 7.0 9g/ m2。更多还原

【Abstract】 The intensive alternate farming of grass prawn and kuruma shrimp was conducted in the shrimp ponds in Qisha town,Fangchenggang city,Guangxi The ponds are sandy shrimp in substratum,round and oval in shape,2.45 m in depth,0.40~0.82 hm\+2 in size,and all equipped with a drainage in the center of each pond and the inside slopes of every pond are protected by precast concrete slabs.The grass prawn was stocked in April to May of 1998 and 1999,with an average density of 73 97 ind./m\+2 and 60 14 ind./m 2,and average farming days of 128 and 124,respectively The kuruma shrimp was stocked in August to September of 1998 and 1999, with an average density of 31 00 ind./m\+2 and 34 13 ind./m 2,and average farming days of 112 and 110,respectively The results of the trial showed that the 55 02% and 56 00% of survival rates and the 624 30 g/m 2 and 601 55 g/m 2 of yields were obtained for grass prawn, and the 44 56% and 44 93% of survival rates and the 113 07 g/m 2 and 127 09 g/m 2 of yields were obtained for kuruma shrimp更多还原