The Biochemical Composition Of Seaweeds From The Persian Gulf And The Effect Of Seaweed Extract On The Growth And Biochemical Composition Of Microalgae Cultured As Live Food For Penaeus Indicus Larvae
| dc.contributor.author | Ghadikolaei, Kiuomars Ranioh | |
| dc.date.accessioned | 2018-08-13T07:17:23Z | |
| dc.date.available | 2018-08-13T07:17:23Z | |
| dc.date.issued | 2011-05 | |
| dc.description.abstract | The biochemical composition of three groups of seaweeds; green (Ulva lactuca and Enthromorpha intestinalis), brown (Sargassum illicifolium and Colpomenia sinuosa) and red (Hypnea valentiea and Gracilaria corticata) from the Persian Gulf and the effects of seaweed extracts (SWE) either as a supplement or as a substitute media to the f/2 medium on the growth and composition of two microalgae Isochrysis galbana and Chaetoceros muelleri cultured as live food for Penaeus indicus larvae were investigated. Results showed that seaweeds were relatively high in carbohydrate and ash, but low in lipid. Lipid content in green (U. lactuca and E. intestinalis) seaweed was significantly higher than both the red and brown seaweed (P < 0.05). Protein content of red (G. corticata) and green (U. lactuca and E. intestinalis) seaweeds was notably higher than brown seaweed (P < 0.05). The green (U. lactuca) and red (H. valentiea) seaweeds had the highest proportion of saturated fatty acids, while the brown (S. illicifolium and C. sinuosa) and red (G. corticata) seaweeds had the highest proportion of monounsaturated and polyunsaturated fatty acids, respectively. The mineral compositions in seaweeds were found in the sequence of K>Mg>Fe>Zn>Mn>Cu>Co. The study clearly showed that the two microalgae I. galbana and C. muelleri could be successfully cultured using the various SWE either as a supplement or as an alternative to the f/2 medium. Since no major changes were found in most of the measured growth parameters, proximate biochemical composition, important polyunsaturated fatty acids and minerals content following culture of the microalgae with SWE as an alternative media, particularly extracts of U. lactuca, E. intestinalis and G. corticata, it was concluded that these SWE are able to provide the necessary nutrients for microalgae growth and could be used as a possible substitute to reduce microalgae production costs, at least two times lower than conventional f/2 medium, in establishing microalgal populations to use in aquaculture operations. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/6282 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | The biochemical composition of three groups of seaweeds | en_US |
| dc.subject | from the Persian Gulf effects of seaweed extracts | en_US |
| dc.title | The Biochemical Composition Of Seaweeds From The Persian Gulf And The Effect Of Seaweed Extract On The Growth And Biochemical Composition Of Microalgae Cultured As Live Food For Penaeus Indicus Larvae | en_US |
| dc.type | Thesis | en_US |