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罗氏沼虾的苗种主要采用人工育苗,搞好其亲虾的人工越冬培养,是人工育苗的关键。现将主要技术简介如下: 一、越冬池建造越冬池建在水源充足,无毒无臭,能排能灌,交通方便的地方。越冬池面积视生产规模而定,每口池约50—100平方米。形状以长方形为好,长宽比例4:1,东西走向设置。池壁用砖石砌成,高出地面2—30厘米。要求建成后不渗、不漏,水深保持1.5米以上。池底以泥沙底为好,底部平坦稍倾斜以利排水,并设置隐蔽物。越冬池上面还需配置钢
Macrobrachium rosenii seedling mainly artificial breeding, do a good job of their broodstock artificial overwintering culture, is the key to artificial breeding. Now the main technical briefings are as follows: First, the overwintering pool construction overwintering pool built in sufficient water, non-toxic and odorless, can discharge row irrigation, convenient transportation. Winter pool area depending on the size of the production, each pool about 50-100 square meters. Rectangular shape is good, aspect ratio of 4: 1, things to set. Pool wall with masonry, 2-30 cm above the ground. After the completion of the request does not seepage, no leakage, keep the water depth of 1.5 meters. Bottom of the sand bottom as well, the bottom of a flat slope to facilitate drainage, and set the hidden objects. Winter pool above the need to configure the steel