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红螯螯虾俗称澳洲淡水龙虾,因其形似海水龙虾,个体较大,肉质鲜美,因而市场供不应求,价格走俏。近年由于人工养殖技术有所突破,该虾已在广东、广西、江苏、浙江、湖北、山东、陕西等省市推广。但由于该虾繁育率低,孵化期长,造成苗种紧缺,价格较高。例如3 cm左右体长的苗种销价1元/尾以上,直接影响该虾的迅速推广。一般自然温度条件下人工繁育设施简单,技术容易掌握,投资少,便于推广,因而普及自然温度下螯虾人工繁育技术,是解决生产苗种来源,大幅度降低养殖成本,促进螯虾养殖业发展的重要措施。
Red crayfish, commonly known as Australian freshwater lobster, because of its shape resembles sea lobster, larger, fleshy, so the market demand, prices are popular. In recent years due to a breakthrough in artificial breeding technology, the shrimp has been in Guangdong, Guangxi, Jiangsu, Zhejiang, Hubei, Shandong and Shaanxi provinces and cities to promote. However, due to the low rate of breeding of shrimp, hatching period, resulting in shortage of seedlings, the higher the price. For example, the body length of about 3 cm selling price of 1 yuan / tail above, a direct impact on the rapid promotion of the shrimp. Under the conditions of natural temperature, artificial breeding facility is simple, technology is easy to grasp, and investment is small, so it is easy to popularize. Artificial breeding technology of crawfish is popularized at natural temperature so as to solve the source of seed production, greatly reduce farming cost and promote development of crawfish farming Important measure.