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대하 (Fenneropenaeus chinensis) 양식장 사육수에 미치는 Probiotics의 효과
임현정 ( Im Hyeon Jeong ),박중현 ( Park Jung Hyeon ),장인권 ( Jang In Gwon ) 한국수산과학회 2004 한국수산과학회지 Vol.37 No.2
N/A Applications of probiotics to shrimp ponds were carried out to determine their effects on water quality. Fermented solutions consisting of Bacillus spp. and Nitrosomonas spp. were applied to a 4 ha shrimp (Fenneropenaeus chinensis) pond from July to September, 2000. In the pond treated with probiotics, daily variations of DO and pH, and concentrations of DIN and DIP were lower than those in the ponds without probiotic treatment. Concentration of phytoplankton was less variable and the number of species was more variable in the probiotic-treated pond than those in the control pond. Variation of bacterial numbers and the number of Vibrio spp. were lower in the treated pond than those in the control pond. It is confirmed that the probiotics can be used to improve water quality of the shrimp ponds.