Luminous bacterial infection research program
1994
Anon.
A team from the Fish Health Section, Aquaculture Division, conducted a preliminary survey on the distribution of the bacterial infection in the area. Three syndromes occurring in the pond-reared prawn were defined. The most critical stage was observed during the first 45 days of culture (DOC). The peak infection was between 13-25 DOC. Clinical signs (first syndrome) observed were the corkscrew behavior on the surface of the water and luminescence of the exoskeleton of affected prawn. The other two syndromes occurred in the later stage of culture. They seemed to show the presence of red disease. The inter-agency team used a series of applied researches to test the efficacy of various disinfectants and chemotherapeutants on the luminous bacterial infection. The prawn applied with the oxolinic acid had a good weight gain and good quality of exoskeleton and muscles during routine sampling. The experiment also showed that adding natural attractants (i.e., oysters and golden snail) to commercial pellet feed enhanced the palatability of the medicated feed. For future research undertakings, the feasibility of using the probiotic approach will be delved into. The approach aims to promote the use of environment-friendly means to control the luminous bacteria infecting prawn ponds. The study will try to use bacterins and immunostimulants to stimulate the non-specific immune response of the prawn
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