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近几年我县南美白对虾养殖迅猛发展,2003年养殖面积已超过了6800亩。然而南美白对虾在我县养殖季节较短,期间有近7个月的冬闲时间,造成虾塘利用率不高,影响养殖效益。而日本对虾生长快,价格高,耐低温,可以自然越冬,是冬闲虾塘养殖的一个好品种。我们于2002年利用养殖南美白对虾的冬闲虾塘进行了日本对虾的养殖试验。通过采取精养、加强水质管理等措施,单产达到38.5 kg,成活率23.3％,取得了较好的经济效益。现将试验结果总结如下:
In recent years, my county Penaeus vannamei breeding rapid development in 2003, farmed area has more than 6,800 acres. However, Penaeus vannamei has a short breeding season in our county. During the winter free time of nearly 7 months, the utilization rate of shrimp ponds is not high, which affects the breeding benefits. The Japanese shrimp grow fast, high prices, low temperature, you can naturally wintering, winter prawn pond farming is a good breed. In 2002, we conducted Japanese shrimp breeding trials using winter and shrimp ponds that breed P. vannamei. Through adopting intensive measures and strengthening water quality management, the yield per unit reached 38.5 kg and the survival rate was 23.3%, which achieved good economic benefits. Now the test results are summarized as follows: