论文部分内容阅读
近年来,我国对虾养殖进展较快,但就目前养虾池的结构来看,一般都是靠潮汐换水,一时尚难完全实现流水养虾。因此,在高密度放养和大量投饵的条件下,养殖的中期末,容易出现缺氧浮头现象,严重时可因大量死亡而造成欠产。如1977年山东即墨东百里大队和1979年文登小观的高产实验池,就先后出现过这种紧急情况而提前出池。可是新池子一般不出现这种情况,作者认为这种差别关键在于底质,因此积极探索解决问题
In recent years, shrimp farming in China progressed rapidly, but the structure of the current shrimp ponds are generally based on tidal water, a fashion difficult to fully realize the water shrimp. Therefore, under the conditions of high-density stocking and large amount of feeding, the end of mid-term aquaculture is prone to hypoxia floating phenomenon, which may lead to underproduction in large numbers due to death. Such as the Shandong Jimo East Barre Brigade in 1977 and the Wendeng Small View High Yield Experimental Pool in 1979, the pool emerges in advance after such an emergency occurs. However, the new pond is generally not the case, the author believes that the key lies in this difference in the sediment, and therefore actively explore to solve the problem