为了发展优质鱼的生产,近年来,北京郊区8个国营渔业基地,安装了10台膨化颗粒饵料机,年约生产膨化颗粒饵料50多万斤,1,000多亩水面养鱼喂上了颗粒饵料,增产效果十分明显。饲喂时辅以青草,特别适于养草鱼,既补充了维生素,还能降低饵料系数,防止发生脂肪肝。实践表明,用颗 In order to develop high-quality fish production, in recent years, eight state-owned fishery bases in the suburbs of Beijing have installed 10 puffed particle bait machines to produce more than 500,000 jin of puffed pellets each year. 1,000 mu of surface fish are fed with pellet feed, Yield effect is very obvious. Feeding supplemented by grass, especially suitable for grass-fed fish, both to add vitamins, but also reduce the feed coefficient, to prevent the occurrence of fatty liver. Practice shows that the use of particles