Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.

Rotifer is the most important live feed in aquaculture, but attempts to produce sufficient quantities continuously with low cost have been unsuccessful. In this study, rotifer culture was tested to be improved by using self-produced concentrated Nannochloropsis sp. (SC-Nanno). SC-Nanno was prepared...

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Main Author:	Mok, Wen Jye
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	QL Zoology
Online Access:	https://eprints.ums.edu.my/id/eprint/14921/1/mt0000000677.pdf https://eprints.ums.edu.my/id/eprint/14921/7/Mass%20Production%20Of%20Rotifer%20Using%20Self-Produced%20Concentrated%20Nannochloropsis%20Sp..pdf
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id	my-ums-ep.14921
record_format	uketd_dc
spelling	my-ums-ep.149212020-12-02T07:42:38Z Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp. 2007 Mok, Wen Jye QL Zoology Rotifer is the most important live feed in aquaculture, but attempts to produce sufficient quantities continuously with low cost have been unsuccessful. In this study, rotifer culture was tested to be improved by using self-produced concentrated Nannochloropsis sp. (SC-Nanno). SC-Nanno was prepared by concentrating Nannochloropsis sp. cells from an outdoor culture of Nannochloropsis sp. grown in a 20-tonne tank using a water purifier filter Sterapore-PKO. The estimated cost of SC-Nanno was RM 4.51/L. The optimum salinity for rotifer culture was 10 ppt. The effectiveness of using SC-Nanno for rotifer culture was tested by comparing the rotifer production fed with different feed, which were SC-Nanno, commercial concentrated Nannochloropsis sp. (CC-Nanno) and bakerâ€™s yeast. Both frozen SC-Nanno and CC-Nanno were thawed while bakerâ€™s yeast was mixed with seawater before feeding to the rotifer. The mean rotifer individual density fed with SC-Nanno was higher (578Â±14 individuals/mL) than those fed with CC-Nanno (520Â±124 individuals/mL) and bakerâ€™s yeast (243Â±21 individuals/mL). Rotifer culture fed with SC-Nanno in different storage conditions namely fresh, chilled and frozen was also studied. The mean rotifer individual density fed with fresh SC-Nanno was higher (796Â±9 individuals/mL) than those fed with chilled SC-Nanno (663Â±7 individuals/mL) and frozen SC-Nanno (578Â±14 individuals/mL). From the results, mass production of rotifer is feasible since SC-Nanno can be produced in hatcheries instead of relying on expensive imported concentrated Nannochloropsis sp. Moreover, SC-Nanno can be stored in either chilled or frozen condition. 2007 Thesis https://eprints.ums.edu.my/id/eprint/14921/ https://eprints.ums.edu.my/id/eprint/14921/1/mt0000000677.pdf text en public https://eprints.ums.edu.my/id/eprint/14921/7/Mass%20Production%20Of%20Rotifer%20Using%20Self-Produced%20Concentrated%20Nannochloropsis%20Sp..pdf text en validuser masters Universiti Malaysia Sabah Borneo Marine Research Institute
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	QL Zoology
spellingShingle	QL Zoology Mok, Wen Jye Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
description	Rotifer is the most important live feed in aquaculture, but attempts to produce sufficient quantities continuously with low cost have been unsuccessful. In this study, rotifer culture was tested to be improved by using self-produced concentrated Nannochloropsis sp. (SC-Nanno). SC-Nanno was prepared by concentrating Nannochloropsis sp. cells from an outdoor culture of Nannochloropsis sp. grown in a 20-tonne tank using a water purifier filter Sterapore-PKO. The estimated cost of SC-Nanno was RM 4.51/L. The optimum salinity for rotifer culture was 10 ppt. The effectiveness of using SC-Nanno for rotifer culture was tested by comparing the rotifer production fed with different feed, which were SC-Nanno, commercial concentrated Nannochloropsis sp. (CC-Nanno) and bakerâ€™s yeast. Both frozen SC-Nanno and CC-Nanno were thawed while bakerâ€™s yeast was mixed with seawater before feeding to the rotifer. The mean rotifer individual density fed with SC-Nanno was higher (578Â±14 individuals/mL) than those fed with CC-Nanno (520Â±124 individuals/mL) and bakerâ€™s yeast (243Â±21 individuals/mL). Rotifer culture fed with SC-Nanno in different storage conditions namely fresh, chilled and frozen was also studied. The mean rotifer individual density fed with fresh SC-Nanno was higher (796Â±9 individuals/mL) than those fed with chilled SC-Nanno (663Â±7 individuals/mL) and frozen SC-Nanno (578Â±14 individuals/mL). From the results, mass production of rotifer is feasible since SC-Nanno can be produced in hatcheries instead of relying on expensive imported concentrated Nannochloropsis sp. Moreover, SC-Nanno can be stored in either chilled or frozen condition.
format	Thesis
qualification_level	Master's degree
author	Mok, Wen Jye
author_facet	Mok, Wen Jye
author_sort	Mok, Wen Jye
title	Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
title_short	Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
title_full	Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
title_fullStr	Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
title_full_unstemmed	Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.
title_sort	mass production of rotifer using self-produced concentrated nannochloropsis sp.
granting_institution	Universiti Malaysia Sabah
granting_department	Borneo Marine Research Institute
publishDate	2007
url	https://eprints.ums.edu.my/id/eprint/14921/1/mt0000000677.pdf https://eprints.ums.edu.my/id/eprint/14921/7/Mass%20Production%20Of%20Rotifer%20Using%20Self-Produced%20Concentrated%20Nannochloropsis%20Sp..pdf
_version_	1747836443781234688

Mass production of Rotifer using self-produced concentrated Nannochloropsis Sp.

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