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פותח על ידי קלירמאש פתרונות בע"מ -
Active microbial decontamination of tilapia fish
Year:
1996
Authors :
נאסר, אחמד
;
.
Volume :
6
Co-Authors:
Zuaretz-Peled, S., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Tchorsh, Y., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Nasser, A.M., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Fattal, B., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Facilitators :
From page:
63
To page:
66
(
Total pages:
4
)
Abstract:
Fish grown in contaminated ponds can be exposed to a variety of human pathogenic microorganisms which may accumulate in its tissues. This study was conducted in order to examine the efficiency of changing the water, in the holding tanks, to reduce the level of microorganisms in various fish tissues. Fish contamination was accomplished by seeding 10 9, 10 11, 10 10 cfu or pfu ml -1 of E. coli, MS2 coliphage and poliovirus 1, respectively, into 100 l of water. These microorganisms were tested in the skin, muscle, liver, spleen and the digestive tract (DT). A single inoculation of the test microorganisms was followed by 3-24 water changes (tank volumes) and compared with self-purification (control) experiments without changing the water. The highest levels of microorganisms were found in the DT, 6 h after inoculation for E. coli and 12 h after inoculation for MS2 and poliovirus 1. Lower levels of the microorganisms were found in the spleen, liver and on the skin and none were detected in the muscle. In the decontamination experiments, no microorganisms were detected in the DT 5-6 days after inoculation, as compared to 11-21 days in the control experiments. The results of this study indicate that faster decontamination of fish is achieved by repeated changing of the water in the holding tanks and this may lower the risk of disease transmission by fish handling or consumption.
Note:
Related Files :
E. coli
fish
Food Contamination
MS2 coliphage
poliovirus 1
risk factor
tilapia fish
Waste Management
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30433
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:54
Scientific Publication
Active microbial decontamination of tilapia fish
6
Zuaretz-Peled, S., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Tchorsh, Y., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Nasser, A.M., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Fattal, B., Division of Environmental Sciences, Nadin Freddy Herrmann Sch. Appl. S., Hebrew University, Jerusalem 91904, Israel
Active microbial decontamination of tilapia fish
Fish grown in contaminated ponds can be exposed to a variety of human pathogenic microorganisms which may accumulate in its tissues. This study was conducted in order to examine the efficiency of changing the water, in the holding tanks, to reduce the level of microorganisms in various fish tissues. Fish contamination was accomplished by seeding 10 9, 10 11, 10 10 cfu or pfu ml -1 of E. coli, MS2 coliphage and poliovirus 1, respectively, into 100 l of water. These microorganisms were tested in the skin, muscle, liver, spleen and the digestive tract (DT). A single inoculation of the test microorganisms was followed by 3-24 water changes (tank volumes) and compared with self-purification (control) experiments without changing the water. The highest levels of microorganisms were found in the DT, 6 h after inoculation for E. coli and 12 h after inoculation for MS2 and poliovirus 1. Lower levels of the microorganisms were found in the spleen, liver and on the skin and none were detected in the muscle. In the decontamination experiments, no microorganisms were detected in the DT 5-6 days after inoculation, as compared to 11-21 days in the control experiments. The results of this study indicate that faster decontamination of fish is achieved by repeated changing of the water in the holding tanks and this may lower the risk of disease transmission by fish handling or consumption.
Scientific Publication
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