A Primary Study of Prevention and Cure of Penaeid Shrimp Luminous Disease by Using Biological Control Methods

By using the trait that Vibrio harveyi bacteriophages have a special phagocytosis on Vibrio harveyi pathogens,this paper discussed the possibility of preventing and curing penaeid shrimp luminous disease.The test indicated that Vibrio harveyi,the disease pathogen,separated from shrimp hatchery showed a low effective sensitivity to 46 antibiotics annually.In 1993,there were 28 kinds of effective antibiotics including 13 kinds of moderate or above sensitive drugs.But the sensitive drugs remained 9 kinds including 2 kinds of moderate sensitivity in 2003.Most of regular drugs used in aquiculture industry have obviously turned low effective to the disease.When Vibrio harveyi bacteriophage were added to test culture water,the amount of Vibrio harveyi could reduce 2～3 degrees,and there was a decrease in the occurring of luminous disease and mortality of shrimp.The results also showed that the mortality of test shrimp seedling was not interrelated with the concentration of Vibrio harveyi bacteriophages,but interrelated with the filtrate volume of those.