网箱养鱼作为一项成功的科研成果,已被广泛推广应用。在生产实践中,水产养殖技术人员进一步利用旱草或水草,甚至种草进行节粮型网箱养草鱼,有效地提高了经济效益。我们经过几年的探索,认为关键应把握以下技术要点。一、选择网箱和设置水域。网箱规格应有利于操作,不浪费饵料,促进鱼类快速生长。成鱼箱最好是4×4×2m,网目为3cm,4×3聚乙烯线手工编织的单层敞口式。配套育种箱最好是2×2×2m,网目为1.2或1.5cm的尼龙箱或无结压膜箱。用楠竹框架或油桶等浮子作的金属框架,10到20个为一排,悬置于水面,两头设锚固定。设置网箱的水域,根据草鱼生长习性,要水质鲜活,未被“三废”污染,水深3m以上,溶氧充足的中小型水库,或流速较小,且避风向阳的大 Cage fish farming as a successful scientific research has been widely promoted. In the practice of production, aquaculture technicians further use dry grass or aquatic plants and even grow grass-saving fish in cage-type cage culture, effectively raising the economic benefits. After several years of exploration, we believe that the key should grasp the following technical points. First, select the cage and set the waters. Cages specifications should be conducive to operation, do not waste food, to promote the rapid growth of fish. Into the fish tank is best 4 × 4 × 2m, mesh 3cm, 4 × 3 polyethylene thread hand-woven single-deck open type. Supporting breeding box is best 2 × 2 × 2m, 1.2 mesh or 1.5cm nylon box or non-pressure film box. Frames made of bamboo or oil drums and other floating metal frame, 10 to 20 in a row, suspended in the water, anchored at both ends of the anchor. Set the cages of the waters, according to the habits of grass carp growth, to fresh water quality, not “three wastes” pollution, water depth 3m above, dissolved oxygen sufficient small reservoirs, or small flow, and shelter sunny