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Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System

Study was under taken to isolate phototrophic bacteria from local microhabitat, production of polymeric substances from selected isolate and to evaluate the possibility to be used aquaculture feed additive in marine finfish larvae. Phototrophic bacterium Afifella marina was isolated from local mang...

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Main Authors: Sujjat Al Azad, Sitti Raehanah Muhammad Shaleh, Julian Ransangan
Format: Research Report
Language:English
Published: Universiti Malaysia Sabah 2014
Subjects:
SH Aquaculture. Fisheries. Angling
Online Access:https://eprints.ums.edu.my/id/eprint/22605/1/Growth%20enhancing%20polymeric.pdf
https://eprints.ums.edu.my/id/eprint/22605/
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spelling my.ums.eprints.226052019-07-11T12:45:22Z https://eprints.ums.edu.my/id/eprint/22605/ Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System Sujjat Al Azad Sitti Raehanah Muhammad Shaleh Julian Ransangan SH Aquaculture. Fisheries. Angling Study was under taken to isolate phototrophic bacteria from local microhabitat, production of polymeric substances from selected isolate and to evaluate the possibility to be used aquaculture feed additive in marine finfish larvae. Phototrophic bacterium Afifella marina was isolated from local mangrove mud. The highest dry cell weight of 4.98 g/I was achieved at 3000 lux, while the highest carotenoid production of 0.78 mg/g dry cell weight was recorded at 2500 lux illumination light intensity. It was also found that extracellular nucleic acid yields of 7.48 mg/g dry cell weight and proteolytic activities of 76.6±1.2 U were the highest in Afifella marina recorded at 5000 lux and 3000 lux illumination of light intensity respectively. Current study was also found that no significant differences in dry cell weight, extracellular nucleic acids production and proteolytic activities between 24h (24UOD) and 18h (18U6D) of photoperiods. The biomasses of Afifella marina were used to encapsulate Artemia and feeding trial conducted in sea bass (Laces calcarifer) larvae. Increment in the highest growth in length of 166% and survival of 67.5% was observed in the diet composed of Artemia encapsulated with Afifella marina. Universiti Malaysia Sabah 2014 Research Report NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/22605/1/Growth%20enhancing%20polymeric.pdf Sujjat Al Azad and Sitti Raehanah Muhammad Shaleh and Julian Ransangan (2014) Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System. (Unpublished)
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
topic SH Aquaculture. Fisheries. Angling
spellingShingle SH Aquaculture. Fisheries. Angling
Sujjat Al Azad
Sitti Raehanah Muhammad Shaleh
Julian Ransangan
Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
description Study was under taken to isolate phototrophic bacteria from local microhabitat, production of polymeric substances from selected isolate and to evaluate the possibility to be used aquaculture feed additive in marine finfish larvae. Phototrophic bacterium Afifella marina was isolated from local mangrove mud. The highest dry cell weight of 4.98 g/I was achieved at 3000 lux, while the highest carotenoid production of 0.78 mg/g dry cell weight was recorded at 2500 lux illumination light intensity. It was also found that extracellular nucleic acid yields of 7.48 mg/g dry cell weight and proteolytic activities of 76.6±1.2 U were the highest in Afifella marina recorded at 5000 lux and 3000 lux illumination of light intensity respectively. Current study was also found that no significant differences in dry cell weight, extracellular nucleic acids production and proteolytic activities between 24h (24UOD) and 18h (18U6D) of photoperiods. The biomasses of Afifella marina were used to encapsulate Artemia and feeding trial conducted in sea bass (Laces calcarifer) larvae. Increment in the highest growth in length of 166% and survival of 67.5% was observed in the diet composed of Artemia encapsulated with Afifella marina.
format Research Report
author Sujjat Al Azad
Sitti Raehanah Muhammad Shaleh
Julian Ransangan
author_facet Sujjat Al Azad
Sitti Raehanah Muhammad Shaleh
Julian Ransangan
author_sort Sujjat Al Azad
title Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
title_short Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
title_full Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
title_fullStr Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
title_full_unstemmed Growth enhancing polymeric substances from phototrophic bacteria for marine finfish Larviculture System
title_sort growth enhancing polymeric substances from phototrophic bacteria for marine finfish larviculture system
publisher Universiti Malaysia Sabah
publishDate 2014
url https://eprints.ums.edu.my/id/eprint/22605/1/Growth%20enhancing%20polymeric.pdf
https://eprints.ums.edu.my/id/eprint/22605/
_version_ 1760229991279230976
score 13.211869

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