入秋至冬至前是鱼类催肥长膘的好时期。据生产实践,抓好这个时期的饲养管理,可增产30%以上。热带鱼类则可赶在冬前提早上市,减少过冬冻伤死亡损失。鱼类冬前育肥及过冬准备可采取以下措施。1·改良水质良好的水质,可给鱼类生长创造一个良好的水体环境。一般入秋至冬至前应每隔7 It is a good time for fish to grow long before entering autumn and winter solstice. According to production practices, do a good job feeding and management during this period, can increase production more than 30%. Tropical fish catch up early in the winter before the market, reducing the loss of winter frostbite death. Fish winter fattening and winter preparation can take the following measures. 1. Improve water quality to create a good water environment for fish growth. Generally fall to the winter solstice should be every 7