五、鱼种放养 1、放养品种:过去稻田养鱼只是养鲤鱼、鲫鱼和草鱼等少量品种,目前已发展到放养罗非鱼、鲢鱼、鳙鱼、鳊鱼、鲶鱼等品种。不同地区可根据不同情况选择放养品种。 2、放养时间:传统放养法,放养时间一般是在水稻栽5天左右秧苗返青后直接将鱼苗鱼种放入稻田饲养。现在的高产养鱼稻田,均开挖有较大的鱼坑、鱼凼,为延长鱼类生长期,要求初春时节即灌水放鱼,先放 Fifth, the stocking of stocking 1, stocking varieties: In the past just to raise fish in the paddy carp, carp and grass carp and other small species, has been developed to stocking tilapia, silver carp, bighead carp, bighead carp, catfish and other varieties. Different regions can be selected according to different stocking varieties. 2, stocking time: the traditional stocking method, stocking time is generally planted in rice about 5 days after the green seedlings directly back into the paddies fish breeding. At present, high-yield fish fields are excavated with larger fish pits and fish Taipa. In order to prolong the growth period of fish, it is required that the early spring season be filled with fish and let go first