摘要
鱼池工程是进行人工淡水养殖的必要条件。通过对陕北鱼池工程现状的调查发现，长方形鱼池、鱼池并列式进排水结构、休渔期干池清塘后鱼池发病率较低，分别为５．７％、６．３％、５．９％；得病蔓延速度最慢，分别是９～１２天、５～１０天、５～７天。
Fishpond engineering is a necessary condition of antificial feeding in fresh water. By the investigation of present conditions of fishpond engineering in Northern Shaanxi, the author tries to indicate that the rate of diseases are considerably low, respectively 5 7%、6 3%、5 9% in th ablong fishpond, the alongside in out constructions of the fishponds, the period of no fish feeding and after drying and clearing the ponds. Meanwhile, the speed of the diseases spreading are slow, respectively 9～12 days, 5-10 days and 5-7days.
出处
《延安大学学报（自然科学版）》
1999年第1期73-76,共4页
Journal of Yan'an University：Natural Science Edition
关键词
鱼池工程
鱼病
防治
发病率
淡水养殖
人工养殖
fsihpond engneering
protection agaist fish illness
rate of disease
