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:	2012
Subjects:	Q Science (General)
Online Access:	http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf
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id	my-unimas-ir.13059
record_format	uketd_dc
spelling	my-unimas-ir.130592023-05-24T04:42:55Z Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system 2012 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 http://ir.unimas.my/id/eprint/13059/ http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf text en validuser masters Universiti Malaysia Sarawak, (UNIMAS) Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	Q Science (General) Q Science (General)
spellingShingle	Q Science (General) Q Science (General) 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
qualification_level	Master's degree
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
granting_institution	Universiti Malaysia Sarawak, (UNIMAS)
granting_department	Faculty of Resource Science and Technology
publishDate	2012
url	http://ir.unimas.my/id/eprint/13059/1/Jafaruddin.pdf
_version_	1783728124816523264

Biofilter utlization in Leptobarbes hoevenii (Jelawat) fry production system

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