论文部分内容阅读
枝角类是淡水水域中常见的甲壳动物,营养丰富,是淡水鱼类的优质饵料,也是禽畜的优良促长剂。研究枝角类的培养技术,对促进淡水养殖事业的发展具有重要意义。 枝角类中的发头裸腹溞(Moina irrasa),是淡水鱼苗转食后的适口饵料,也是某些成鱼的终生饵料。该溞最适的生长繁殖季节正是我国主要淡水养殖鱼类摄食和生长旺季。它具有生长快,性成熟期短,生殖量较大等优点,可作为优良的培养种类。对发头裸腹溞的培养研
Cladocera is a common crustacean in freshwater waters, nutrient-rich, is a high-quality freshwater fish diet, but also poultry good promoter. Studying the techniques of culturing clams has great significance for promoting the development of freshwater aquaculture. Moina irrasa, a species of cladocera, is a bait for freshwater fry after feeding, and is a lifelong diet for some adults. The optimum growth and reproduction season is the main freshwater fish feeding and growing season in China. It has fast growth, short sexual maturity, reproductive capacity, etc., can be used as an excellent culture species. Research on the cultivation of hair bare belly