论文部分内容阅读
花鲈又称七星鲈、海鲈,属广温、广盐、凶猛肉食性名贵经济鱼类,是海水养殖的主要品种,通过人工驯化也可在淡水中养殖。它具有生长快、病害少、体色艳、肉质嫩、味道鲜、营养丰富、生肌补血和滋补强身等特点,深受广大消费者青睐,目前市场售价为50~60元/kg。现将花鲈人工养殖技术介绍如下: 1 夏花淡化:从沿海地区购进的花鲈夏花放在常规育苗池内进行淡化处理,放养密度为500尾/m~3,淡化期为7天。具体方法是:开始池水盐度要和苗种产地盐度相一致,接着每天抽去1/3池水,再加入等量的淡水,期间要充气增氧,同时每天投喂适量的新鲜鱼糜。淡化是一个循序渐进的过程,盐度梯度变化不
Sea bass, also known as the perch, sea bass, is a wide temperature, wide salt, fierce carnivorous economic fish, is the main species of mariculture, artificially domestication can also be cultured in freshwater. It has fast growth, less disease, body color Yan, tender meat, delicious, nutritious, myogenic blood and nourishing the body and other characteristics, favored by the vast number of consumers, the current market price of 50 to 60 yuan / kg. Now the perch breeding technology is as follows: 1 summer flower desalination: from the coastal areas to buy perch perched on a summer nursery pond desalination, stocking density of 500 tail / m ~ 3, the desalination period of 7 days. The specific method is: start the salinity of the water to be consistent with the salinity of the seedling origin, and then pumping out 1/3 of the water every day, then add the same amount of fresh water, aeration during oxygenation, while feeding appropriate amount of fresh surimi. Desalination is a gradual process, the salinity gradient does not change