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首页> 外文期刊>Bangladesh journal of fisheries research >On farm trial of freshwater pearl culture
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On farm trial of freshwater pearl culture

机译：在淡水珍珠养殖的农场试验中

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On farm preliminary trial of freshwater pearl culture was done through 20 entrepreneurs in Boilor and Sutiakhali villages of Mymensingh district during 2004. A group of 20 enthusiastic women were selected and trained on the art of mantle tissue dissection, operation for mantle tissue implantation and preparation of ponds for pearl culture. A total of 200 juvenile freshwater mussel, Lamellidens marginalis, were collected from the wild and were used for mantle issue operation. The operated mussels werethen transferred to farmer's pond and were subjected to observational trial. Length and weight of each of the test mussels were recorded before hanging them at a depth of 40 cm in net bags (3 musselset bag) in ponds at the rate of 24,700 mussels/ha ofpond area. Ponds were routinely fertilized with organic and inorganic fertilizers thorough out the mussel rearing period. Water temperature, pH, plankton density and soil organic matter were monitored fortnightly. Growth of pearl is yet to be monitoredthrough sacrifice of the mussels but X-ray photography of a few mussels indicated the initiation of pearl formation in most of them.
机译：在农场，2004年通过Mymensingh区的Boilor和Sutiakhali村的20位企业家对淡水珍珠养殖进行了初步试验。选择了20名热情的妇女，并对其进行了皮套解剖，皮套植入手术和准备皮套的培训养殖珍珠的池塘。总共从野外收集了200只少年淡水贻贝Lamellidens marginalis，并用于下地幔作业。然后将操作过的贻贝转移到农民的池塘中，并进行观察试验。记录每个测试贻贝的长度和重量，然后将其悬挂在池塘中网袋（3贻贝/网袋）中40厘米深处，池塘面积为24,700贻贝/公顷。在贻贝养殖期间，通常对池塘进行有机和无机肥料的施肥。每两周监测一次水温，pH，浮游生物密度和土壤有机质。珍珠的生长尚待通过贻贝的牺牲来监测，但是一些贻贝的X射线照片显示，大多数贻贝都开始形成珍珠。

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