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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。
The breeding trial of Penaeus monodon and Penaeus japonicus was conducted in Qisha, Fangchenggang, Guangxi. Shrimp ponds for sandy soil pool, round or oval, shrimp pond deep 2.45 m, each pool area 0. 0 ~ 0 .82 hm2. There is a drainage and sewerage system at the center of each pool, and slopes within the pool dike are lined with precast concrete panels. Penaeus monodon released in April and May of 1998 and 1999, and the average Fangmiaonai density was 73.97 / m2 and 60.14 / m2, respectively. The average days for breeding were 12 8 days and 12 4 days, respectively. Japan shrimp in 1998 and 1999 from August to September Fangmiao, the average Fangmiao density were 31.0 0 / tail and rice and 34.13 / m2, the average number of days for 112 days and 110 days. The results showed that the survival rate of Penaeus monodon was 55.02% and 56.0%, and the unit yield was 62.430 g / m2 and 60.15 5 g / m2 respectively. The survival rate of Japanese shrimp was 4 4.56% and 44.493%, with unit yields of 113.0 7g / m2 and 12 7.0 9g / m2.