近年来,对虾养殖面积不断扩大,虾病逐年增多,产量和效益受到影响,为了寻求一条增产增效的途经,我们于1990年7月引进对虾促生长剂——莱研一号。该剂是由多种微量元素和一些高营养原料配制而成。主要作用是增强对虾消化、循环系统的功能,促使对虾生长,增强对虾体质,提高其免疫抗病能力,从而达到提高产量降低成本,提高经济效益的目的。 In recent years, shrimp farming area continues to expand, shrimp disease increased year by year, yield and benefits are affected, in order to seek a way to increase yield and efficiency, we introduced in July 1990 shrimp growth promoting agent - Layan one. The agent is made from a variety of trace elements and some high nutritional ingredients. Its main function is to enhance the functions of digestion and circulation systems in shrimp, promote the growth of shrimp, enhance the body constitution of shrimp and enhance its immunity and disease resistance so as to achieve the goal of increasing production, reducing costs and increasing economic benefits.