超大型珍珠育成与育珠蚌吊养量的关系研究

On the effect of suspending breeding density of super-large pearl clam to pearl growth

超大型珍珠养殖与育珠蚌的吊养量密切相关,适度的育珠蚌吊养量是获取超大型珠的关键技术参数之一。通过对比2010—2015年的试验数据,得到如下结果:在相同的养殖与管理条件下,在培育超大型珍珠时,育珠蚌的吊养量与其养殖成活率无直接相关性;最适育珠蚌的吊养量分别为1龄珠蚌0.59只/m^2、2龄珠蚌1.02只/m^2、3龄珠蚌1.26只/m^2、4龄珠蚌1.53只/m^2,但超大型珍珠的最佳吊养量为1.43只/m^2,最佳毛利润的吊养量为2.1只/m^2,最佳产投比的吊养量为0.82只/m^2,其产投比可达2.63。

Close correlation exists between suspending breeding density of pearl clam and yield of super-large pearl, pearl. Appropriate cultivation density is one of the very key factors in the pearl industry. After five years research, the results show that on the same condition, livability of pearl clam is not related to the suspending cultivation density. From 1 to 4 years old clams, the most appropriate cultivation density is 0.59, 1.02, 1.26, 1.53 m？2. But the optimum proportion oversized pearls breeding density of 1.43 m？2, Has the best gross breeding density of 2.1 m？2, only has the best ratio of breeding density of 0.82 m？2, the ratio of 2.63.