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三角帆蚌是我国淡水育珠的优良蚌种。79年以来,我县蚌病蔓延严重,育珠蚌成活率很低,有的甚至全部死亡,严重影响了珍珠生产的发展和质量的提高。79年前1～3级优质珠占21.6％,81年就降至3.2％.如何提高三角帆蚌成活率,提高珍珠的产量和质量,是目前生产中急待解决的科研项目。经过二年试验,养殖工龄育珠蚌成活率达74％;三级以上优质珠比例占10％;平均每只蚌珍珠产量达8克。现将试验情况介绍如下: (一)试验蚌:蚌源是由无锡县人工繁殖的三角帆蚌,79年12月由朱家桥公社沥江二队购进,当时
Hyriopsis cumingii is an excellent species of freshwater bamboo in China. 79 years, my county mussel disease spread seriously, pearl mussel survival rate is very low, and some even all died, seriously affecting the pearl production and quality improvement. 79 years ago, 1 ~ 3 quality beads accounted for 21.6%, down to 3.2% in 81. How to improve the survival rate of Hyriopsis cumingii, pearl yield and improve the quality of the current production is an urgent scientific research projects. After two years of testing, the breeding age of male mussel survival rate of 74%; three above the proportion of high quality beads accounted for 10%; an average of mussels per mussel up to 8 grams. Now the test situation is described as follows: (a) test mussels: Mussels source is from Wuxi County Artificial propagation of Hyriopsis cumingii, December 79 by the Zhujiang Bridge commune Lek second team purchased, then