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The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae)
In the aquaculture of fish and shrimps, diets generally contain high levels of fish meal. Fish meal is a nutrient rich feed that contains essential amino acids and fatty acids, which are required to maintain optimum growth and health of an animal. It is traditionally used in aquaculture to promote f...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2018
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| _version_ | 1867613268599635968 |
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| access_status_str | Open Access |
| author | Mbona, Anathi |
| author2 | Marco, Heather G |
| author_browse | Marco, Heather G Mbona, Anathi |
| author_facet | Marco, Heather G Mbona, Anathi |
| author_sort | Mbona, Anathi |
| collection | Thesis |
| description | In the aquaculture of fish and shrimps, diets generally contain high levels of fish meal. Fish meal is a nutrient rich feed that contains essential amino acids and fatty acids, which are required to maintain optimum growth and health of an animal. It is traditionally used in aquaculture to promote feed efficiency, nutrient uptake and feed intake due to its high palatability and digestibility. Overexploitation of fisheries resources and the high growth rate of aquaculture industry, however, continues to put pressure on the supply of fish meal, thus increasing the demand and price of this sought-after product. The use of alternative ingredients to fish meal, therefore, remains a high priority for aquaculture nutrition. Hence, the aim of this was to investigate the physiological and developmental effects on juvenile spotted grunter, Pomadasys commersonnii, after supplementing fish meal with different feed additives for 12 weeks. One of the additives was then selected for further feeding at graded levels (increasing levels) for 8 weeks to ascertain whether fish meal could be replaced by higher amounts of the feed additive without negative consequences to the cultured spotted grunter. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/27352 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:26.520Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/27352 The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) Mbona, Anathi Marco, Heather G Fouche, Chris Aquaculture Fisheries Research In the aquaculture of fish and shrimps, diets generally contain high levels of fish meal. Fish meal is a nutrient rich feed that contains essential amino acids and fatty acids, which are required to maintain optimum growth and health of an animal. It is traditionally used in aquaculture to promote feed efficiency, nutrient uptake and feed intake due to its high palatability and digestibility. Overexploitation of fisheries resources and the high growth rate of aquaculture industry, however, continues to put pressure on the supply of fish meal, thus increasing the demand and price of this sought-after product. The use of alternative ingredients to fish meal, therefore, remains a high priority for aquaculture nutrition. Hence, the aim of this was to investigate the physiological and developmental effects on juvenile spotted grunter, Pomadasys commersonnii, after supplementing fish meal with different feed additives for 12 weeks. One of the additives was then selected for further feeding at graded levels (increasing levels) for 8 weeks to ascertain whether fish meal could be replaced by higher amounts of the feed additive without negative consequences to the cultured spotted grunter. 2018-02-07T06:49:57Z 2018-02-07T06:49:57Z 2017 Master Thesis Masters MSc http://hdl.handle.net/11427/27352 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Aquaculture Fisheries Research Mbona, Anathi The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| thesis_degree_str | Master's |
| title | The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| title_full | The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| title_fullStr | The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| title_full_unstemmed | The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| title_short | The nutritional effects of selected algae, prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter, Pomadasys commersonnii (Pisces: Haemulidae) |
| title_sort | nutritional effects of selected algae prebiotics and commercial herbal feed additives on the growth rate and health of juvenile spotted grunter pomadasys commersonnii pisces haemulidae |
| topic | Aquaculture Fisheries Research |
| url | http://hdl.handle.net/11427/27352 |
| work_keys_str_mv | AT mbonaanathi thenutritionaleffectsofselectedalgaeprebioticsandcommercialherbalfeedadditivesonthegrowthrateandhealthofjuvenilespottedgrunterpomadasyscommersonniipisceshaemulidae AT mbonaanathi nutritionaleffectsofselectedalgaeprebioticsandcommercialherbalfeedadditivesonthegrowthrateandhealthofjuvenilespottedgrunterpomadasyscommersonniipisceshaemulidae |