论文部分内容阅读
夏季是鱼类养殖的关键时期,为了保证稳产高产,应做好下述几项技术措施。 一、强化投喂。夏季水温在25℃—28℃时,鱼群生长最旺,饲料效率最高。故要抓住此时进行强化投喂。一般每天投喂精饲料2次,青饲料1—2次,鲜活贝类每天投喂1次。投料量应根据具体情况灵活掌握。精饲料以投下后约半小时内吃完为度,青饲料投下以当天吃完为佳,贝类以下次投喂前吃完为准。天气晴朗,水中溶氧量高,鱼类摄食量大,应适当多投;天气闷热,水中溶氧量低,鱼类摄食弱,则要少投或不投。
Summer is a critical period for fish farming. In order to ensure stable and high yield, several technical measures should be taken as follows. First, strengthen the feeding. Summer water temperature at 25 ℃ -28 ℃, fish growth is the most popular, the highest feed efficiency. It is necessary to seize the intensive feeding at this time. Generally fed daily feed 2 times, green feed 1-2 times, fresh shellfish fed 1 day. Feeding volume should be based on the specific circumstances of a flexible grasp. Concentrated feed to eat about half an hour after the degree of finish, green feed dropped to eat the same day is better, shellfish fed the next time before feeding shall prevail. The weather is clear, high dissolved oxygen in the water, fish intake, should be appropriate to vote; hot weather, dissolved oxygen in the water is low, fish consumption is weak, then less or not cast.