唐海县1993年对虾发病有以下特点:(a)发病早·来势猛,面积广,死亡率高;(b)发病不分品种,无论中国对虾,斑节对虾,还是车虾,都不同程度地染病;(c)不分养殖模式(粗养、精养、半精养),不分大地小池、新池老池,均遭受虾病侵袭;(d)病因不清。病虾表现为不摄食、空肠、空胃,体色由红到灰白,至于是病毒,病菌,还是综合感染,众说不一。尽管目前对虾死亡病因难以确定,但有以下几种现象值得重视和研究:1 种源问题 1992年由于风暴潮的突 Tanghai County in 1993 the incidence of shrimp has the following characteristics: (a) the incidence of early fierce Meng, a wide area, high mortality rate; (b) the incidence regardless of species, regardless of shrimp, Penaeus monodon or shrimp, are varying degrees (C) Shrimp diseases are endemic regardless of the mode of breeding (extensive, intensive and semi-intensive), regardless of the size of the geoduck or the new pond; (d) The cause is unclear. Shrimp shrimp performance is not food, jejunum, empty stomach, body color from red to gray, as is the virus, germs, or a combination of infections, different. Although the current cause of death of shrimp is difficult to determine, but there are several phenomena worthy of attention and research: a source problem 1992 due to storm surges