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Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system

This study was carried out to determine the effectiveness of using of Eichhornia crassipes, Hydrilla verticil/ata and Pistia stratiotes in intensive Leptobarbes hoevenii fry production system. It was established that the optimum ammonia-nitrogen and orthophosphate absorption between species was achi...

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Main Author: Jafaruddin, bin Ali
Format: Thesis
Language:English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2012
Subjects:
Q Science (General)
SH Aquaculture. Fisheries. Angling
Online Access:http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf
http://ir.unimas.my/id/eprint/13059/
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spelling my.unimas.ir.130592023-05-24T04:42:55Z http://ir.unimas.my/id/eprint/13059/ Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system Jafaruddin, bin Ali Q Science (General) SH Aquaculture. Fisheries. Angling This study was carried out to determine the effectiveness of using of Eichhornia crassipes, Hydrilla verticil/ata and Pistia stratiotes in intensive Leptobarbes hoevenii fry production system. It was established that the optimum ammonia-nitrogen and orthophosphate absorption between species was achieved with the E. crassipes treatment, followed by the H. verticil/ata and P. stratiotes. The P. stratiotes was later removed in subsequent experiments due to poor ammonia-nitrogen and orthophosphate absorptioflj In optimum density of E. cra . ipes experiment, four levels of E. crassipes density were used, which were 0, 150, 300 and 450 grams. The highest L. hoevenii survival and growth were achieved in the 150 gram E. crassipes treatment. Meanwhile, the highest L. hoevenii fry performance in the four H. verticil/ala density levels was acquired in the 50 gram H. verticil/ata treatment. The highest L. hoevenii fry survival and growth in the four combined biofilter treatments was acquired in the 150 gram E. crassipes treatment. Result showed that the 150 gram E. crassipes with mechanical filter obtained the highest fry growth performance when compared with three other treatments. For the study regarding the fish fry density levels, the highest survival and growth of L. hoevenii fry were achieved at 20 fish fry, which was the lowest density level in this research. Based on the overall results, the best design consisted of the following sequence: the first cycle -the water treatment cycle -the second cycle. The first and second cycles were done for five weeks and the water treatment cycle for two weeks. Universiti Malaysia Sarawak, (UNIMAS) 2012 Thesis NonPeerReviewed text en http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf Jafaruddin, bin Ali (2012) Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system. Masters thesis, Universiti Malaysia Sarawak, (UNIMAS).
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic Q Science (General)
SH Aquaculture. Fisheries. Angling
spellingShingle Q Science (General)
SH Aquaculture. Fisheries. Angling
Jafaruddin, bin Ali
Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
description This study was carried out to determine the effectiveness of using of Eichhornia crassipes, Hydrilla verticil/ata and Pistia stratiotes in intensive Leptobarbes hoevenii fry production system. It was established that the optimum ammonia-nitrogen and orthophosphate absorption between species was achieved with the E. crassipes treatment, followed by the H. verticil/ata and P. stratiotes. The P. stratiotes was later removed in subsequent experiments due to poor ammonia-nitrogen and orthophosphate absorptioflj In optimum density of E. cra . ipes experiment, four levels of E. crassipes density were used, which were 0, 150, 300 and 450 grams. The highest L. hoevenii survival and growth were achieved in the 150 gram E. crassipes treatment. Meanwhile, the highest L. hoevenii fry performance in the four H. verticil/ala density levels was acquired in the 50 gram H. verticil/ata treatment. The highest L. hoevenii fry survival and growth in the four combined biofilter treatments was acquired in the 150 gram E. crassipes treatment. Result showed that the 150 gram E. crassipes with mechanical filter obtained the highest fry growth performance when compared with three other treatments. For the study regarding the fish fry density levels, the highest survival and growth of L. hoevenii fry were achieved at 20 fish fry, which was the lowest density level in this research. Based on the overall results, the best design consisted of the following sequence: the first cycle -the water treatment cycle -the second cycle. The first and second cycles were done for five weeks and the water treatment cycle for two weeks.
format Thesis
author Jafaruddin, bin Ali
author_facet Jafaruddin, bin Ali
author_sort Jafaruddin, bin Ali
title Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
title_short Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
title_full Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
title_fullStr Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
title_full_unstemmed Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system
title_sort biofilter utlization in leptobarbes hoevenii (jelawat) fry production system
publisher Universiti Malaysia Sarawak, (UNIMAS)
publishDate 2012
url http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf
http://ir.unimas.my/id/eprint/13059/
_version_ 1767209794497675264
score 13.211869

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