scholarly journals EFFECT OF POVIDONE IODINE TREATMENT ON BACTERIAL COMMUNITY ASSOCIATED WITH WHITE SHRIMP (LITOPENAEUS VANNAMEI) LARVAE

2009 ◽  
Vol 34 (2) ◽  
pp. 71-80
Author(s):  
Artini Pangastuti ◽  
Antonius Suwanto ◽  
Yulin Lestari ◽  
Maggy T. Suhartono

The efficacy of povidone iodine as a surface disinfectant was assessed in white shrimp (Litopenaeus vannamei) eggs and larvae. Eggs and nauplii were exposed to povidone iodine 20 ppm for 20 seconds. Culture-based method and Terminal Restriction Fragment Length Polymorphism (T-RFLP) were used to monitor the total number of bacteria and diversity of the bacterial community associated with shrimp eggs and larva at each developmental stage. Povidone iodine reduced the total culturable bacteria, especially Vibrio, on eggs and nauplii, as well as the total bacteria in the whole community as estimated by T-RFLP results. Povidone iodine also reduced the diversity of bacterial community and altered the evenness of phylotypes distribution suggesting that the use of povidone iodine as a surface disinfectant in shrimp aquaculture should be reconsidered.

2005 ◽  
Vol 36 (4) ◽  
pp. 546-553
Author(s):  
M. J. Cooney ◽  
P. Bienfang ◽  
Anne M. Alvare ◽  
Jose R. O. Cesar ◽  
James N. Sweeney

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Hidayat S. Suwoyo ◽  
K. Nirmala ◽  
D. Djokosetiyanto ◽  
Sri R.H. Mulyaningrum

Sediment oxygen consumption level is an indicator of mineralization procces intensity and indicator of microorganism activity in the substrate, and also a description of dissolved oxygen consumption or utilization in a water body. This study aimed to evaluate factors of sediment quality which influenced sediment oxygen consumption level. The study was conducted at the experimental pond installation of Research Institute for Coastal Aquaculture (RICA), in Punaga, Takalar Regency, South Sulawesi, using two units of 4000m2 intensive ponds with density of 50ind./m2. Rearing period was approxi-mately in 4months. Pond management was carried out in accordance with standard operating pro-cedures. Homogeneity between experimental units was approached by the uniformity of pond management including pond preparation, shrimp seed management, feed management,and water management. Sediment quality variables measured were redox potential, pH, total organic matter, sediment oxygen consumption, total bacteria, and production aspect. The results showed that the factors which have close relationship with the sediment oxygen consumption were redox potential, organic matter, and total bacteria. The model could be used to predict the sediment oxygen con-sumption on white shrimp pond with the following regression equation Y=  0.0000496 + 0.00025 organic matter + 0.00037 total bacteria - 0.00000948 potential redox with R2 = 0.847.Keywords: sediment oxygen consumption, sediment quality, pond, Litopenaeus vannamei


2014 ◽  
Vol 47 (6) ◽  
pp. 1737-1746 ◽  
Author(s):  
Zhaobin Huang ◽  
Xiaoyi Li ◽  
Liping Wang ◽  
Zongze Shao

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Hidayat S. Suwoyo ◽  
K. Nirmala ◽  
D. Djokosetiyanto ◽  
Sri R.H. Mulyaningrum

Sediment oxygen consumption level is an indicator of mineralization procces intensity and indicator of microorganism activity in the substrate, and also a description of dissolved oxygen consumption or utilization in a water body. This study aimed to evaluate factors of sediment quality which influenced sediment oxygen consumption level. The study was conducted at the experimental pond installation of Research Institute for Coastal Aquaculture (RICA), in Punaga, Takalar Regency, South Sulawesi, using two units of 4000m2 intensive ponds with density of 50ind./m2. Rearing period was approxi-mately in 4months. Pond management was carried out in accordance with standard operating pro-cedures. Homogeneity between experimental units was approached by the uniformity of pond management including pond preparation, shrimp seed management, feed management,and water management. Sediment quality variables measured were redox potential, pH, total organic matter, sediment oxygen consumption, total bacteria, and production aspect. The results showed that the factors which have close relationship with the sediment oxygen consumption were redox potential, organic matter, and total bacteria. The model could be used to predict the sediment oxygen con-sumption on white shrimp pond with the following regression equation Y=  0.0000496 + 0.00025 organic matter + 0.00037 total bacteria - 0.00000948 potential redox with R2 = 0.847.<br /><br /><em><strong>Keywords</strong>: sediment oxygen consumption, sediment quality, pond, Litopenaeus vannamei</em>


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