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在重庆地区,冬至到立春是放养鱼种的最佳时机。其原因有五:一是此时鱼种壮,鱼鳞紧,适应力强;二是水温低,鱼活力弱,捕捞和放养过程中成活率高;三是有利于并塘越冬管理;四是有利于掌握鱼种的规格和数量,制订下年度的放养计划;
In Chongqing, the winter solstice to the beginning of spring is the best time to stock fish species. There are five reasons for this: First, fish species are strong at this time, fish scales are tight and strong adaptability. Second, the water temperature is low, and the vitality of fish is weak. In the process of fishing and stocking, the survival rate is high. Third, Which will help to master the specifications and quantity of fish species and formulate the stocking plan for the next fiscal year;