水蛭-泥鳅生态混养技术研究

A Study on Eco-polyculture Technology of Whitmania pigra-Paramisgurnus dabryanus

基于水蛭—泥鳅生态混养技术,在设置围网的池塘中开展主养水蛭套养泥鳅并投放适量螺蛳和水葫芦的生产实验.在池塘围网中投放400~500条/kg的水蛭苗种45 kg/667 m^2,250~300条/kg的泥鳅苗种30 kg/667 m^2的情况下,主养水蛭的平均产值为19924元/667 m^2.较之单养水蛭的产值要高,加之套养泥鳅增加的平均产值2201元/667 m^2,其平均总效益增至22124元/667 m^2,平均净利润达到16924元/667 m^2,是普通鱼类养殖效益的2~3倍,且能一次投苗,多年受益,经济和生态效益十分可观.

Based on Whitmania pigra-Paramisgurnus dabryanus ecological polyculture technology,production experiments were carried out in ponds with seine nets for the main cultivation of W.pigraes,intercropping P.dabryanus,and an appropriate quantity of snails and water hyacinths were put in.In the case of putting 400-500/kg W.pigra seedlings,45 kg/667 m2,and 250-300/kg P.dabryanus seedlings,30 kg/667 m^2 in the seine nets,the average output value per 667 m^2 of main cultivated W.pigraes was 19924 yuan,which is higher than the output value per 667 m^2 of monoculture W.pigraes.In addition,the average output value per 667 m^2 of intercropping P.dabryanus increased by 2201 yuan.Its average total benefit increased to 22124 yuan per 667 m2,and its average net profit reached 16924 yuan per 667 m2,which is 2-3 times the benefit of ordinary fish cultivation.It can benefit for many years with only a single-time seedling put,and its economic and ecological benefits are considerable.