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| Registros recuperados: 33 | |
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| Abioye, O.M.; Adeyemo, A.A.; Ayinla, O.A.; Bekibele, D.O.. |
| Azolla pinnata as a possible replacement of the palm kernel cake in the diet of Oreochromis niloticus. Compounded diets from a control with palm kernel cake replaced at varying levels of 0, 20, 40, 60, 80, and 100% with the aquatic fern (oven dried Azolla pinnata) were fed to Oreochromis niloticus for twelve weeks to determine the acceptability and utilization of the fern in the diet, verify the nutritional influence of the fern on the performance of the fish and possible optimum palm kernel cake replacement level. The fish readily accepted the test diets. Better growth responses were recorded in the treatments containing Azolla pinnata meal. The best response was observed in the 20% replacement level, thereby suggesting an optimum replacement. However... |
| Tipo: Report |
Palavras-chave: Nutrition; Aquaculture development; Nutrition; Http://aims.fao.org/aos/agrovoc/c_49892. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/2410 |
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| Mazón-Suástegui, J.M.; Avilés-Quevedo, M.A.; Rivero-Suárez, S.E.. |
| El cultivo de moluscos es una práctica ancestral; los antiguos romanos ya cultivaban ostras desde la edad media y posteriores civilizaciones han dado continuidad a dichas prácticas acuícolas, de manera tal, que en la actualidad existe un importante desarrollo tecnológico en el tema. Los ostiones son organismos bentónicos filtro- alimentadores y algunas especies tienen como hábitat los estuarios y deltas de ríos, con aguas someras y salobres. La mezcla de agua dulce y salada hace particularmente apropiados los ecosistemas de manglar para el crecimiento y reproducción de varias especies de moluscos de importancia comercial (Figura 1). Este es el caso del ostión de mangle Crassostrea rhizophorae, que ha recibido ese nombre justamente... |
| Tipo: Preprint |
Palavras-chave: Aquaculture development; Sustainable development; Appropriate technology. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/5736 |
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| Ayinla, O.A.. |
| Chemical composition of Clarias gariepinus collected from the wild was investigated. The moisture level ranged from 72.2% to 75.7% while the crude protein level was 18.9% to 19.7%.with the mean of 19.3%. The lipid content ranged from 1.04% to 1.32% (wet weight) while ash was 3.05% to 3.7%. The size of the fish did not significantly (p<0.05) affect the proximate composition. The amino acid pattern of different sizes of C. gariepins were similar with lysine level of 7.5 to 8.0g/16gN,and methionine level of 1.56 to 3.08g/16gN. PUFA of C. gariepinus ranged from 6.5to 7.8%. |
| Tipo: Report |
Palavras-chave: Aquaculture development. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/2383 |
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| Ayinla, O.A.; Nwadukwe, F.O.. |
| The effect of season on the controlled propagation of C. gariepinus was investigated. The hypophysation of C. gariepinus using the pituitary extract from the sacrificed C. gariepinus was carried out from July, 1987 to June 1988. The female broodstock weight ranged from 0.50kg while the male weight, from 0.5kg to 0.6kg. The condition factor of the female broodfish was more or less uniform (1.3 to 1.7). The results showed that there was peak production of eggs by the female during the rainy season. Eggs production for rainy season ranged from 28,000 eggs/kg body weight in June to 37,600 eggs/kg body weight in August. The percentage hatching of the fertilized eggs was also higher in the rainy season than the dry season. The highest hatching of the... |
| Tipo: Report |
Palavras-chave: Aquaculture techniques; Aquaculture development; Aquaculture techniques; Http://aims.fao.org/aos/agrovoc/c_28992. |
| Ano: 1990 |
URL: http://hdl.handle.net/1834/2436 |
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| Isla Molleda, M.; Arencibia Carballo, G.; Delgado Miranda, G.; Tizol Correa, R.. |
| La selección de zonas de la plataforma cubana que reúnan las condiciones medioambientales adecuadas para el desarrollo del maricultivo de especies foráneas en jaulas, es una estrategia que se está llevando a cabo por el Ministerio de la Industria Pesquera desde 1996. Hasta la fecha se han seleccionado y autorizado cuatro zonas de la plataforma cubana para la realización de esta actividad en el país, tales son Bahía de Cabañas, Cabo Cruz y Niquero, para el cultivo de dorada (Sparus aurata) y Arroyos de Mantua para el cultivo de lubina (Dicentrarchus labrax). Estas especies son consideradas de alto valor comercial fundamentalmente en países del área mediterránea y su cultivo y comercialización constituyen una fuente de ingresos al país. En... |
| Tipo: Working Paper |
Palavras-chave: Aquaculture development; Coastal zone management. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4516 |
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| Ayinla, O.A.; Idoniboye-Obu, T.I.E.; Omuaru, V.; Vehlow, U.. |
| The fatty acid composition of the development stages (fingerling, juvenile and adult) of some pond raised fresh water fishes (Heterobranchus bidorsalis, ‘hybrid’ of H. bidorsalis and C. gariepinus, Chrysichtys nigrodigitatus, Heterotis niloticus and Oreochromis niloticus) were determined by gas liquid chromatography (GLC). Fatty acids abundant in the stages of these fishes are palm tic acid (C16:0), Oleic acid (C18:1) and Linolenic acid (C18:3w3) . Highly unsaturated fatty acid (HUFA) such as C20:4w6, C20:2w3 and C22:4w6 acids were present in small quantity. The common features of freshwater fish is evidently displayed namely the enrichment in linolenic (18:2w6) and / or linolenic (18:3w3) fatty acids. However the presence of high proportions of... |
| Tipo: Report |
Palavras-chave: Aquaculture development. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/2216 |
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| Ayinla, O.A.; Akande, G.R.. |
| The feeding trial of C. gariepinus using three silage based diets and one fish meal based diet was carried out in concrete tanks. The four experimental diets were fed to C. gariepinus fry of relatively the same size. At the end of 8 weeks feeding trial the fish increased from their initial body weight of 0.2g, 0.4g, 0.4g and 0.4g to average final weights of 21.2g 15.4g, 12.8g and 13.8g respectively. The diet containing 41.1% resulted in the least food conversion efficiency of 1.2 over the eight weeks period. Of the experimental treatments the diets containing the highest level of fish silage (41.0%) performed better than any of the other two treatments of 19.0% and 33.5% fish silage contents. Apart from the nutritional superiority of 14% fish meal-based... |
| Tipo: Report |
Palavras-chave: Aquaculture development. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/2484 |
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| Awa, J.N.; Anyanwu, P.E.. |
| Fish samples were collected from Lekki and Badagry lagoon and the Institute’s experimental fish farm, Lagos, from February 1983 to September 1984. Three thousand seven hundred and eighty six brooders and fingerlings rAnging between 3.5cm and 50.2cm in total length and weighing between 2.56g and 976,0g were examined. External parasites observed on Saratherodon galilaeus included monogenean trematodes, Gyrodactylus spp and Dactylogyrus spp; copepod, Argulus spp, and annelid (Piscilid) leeches on the body surface and gills. T. guineensis were infected by endoparasitic digenean trematodes and nematodes in the alimentary tract. Clarius gariepinus and Chrysichthys nigrodigitatus were infected with cestodes and nematodes. Infection was very high between... |
| Tipo: Report |
Palavras-chave: Aquaculture development; Fish farms. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/1264 |
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| Beji, O.. |
| La production conchylicole du lac de Bizerte reste très faible (une moyenne de 120 t /an) comparée à son potentiel qui a été estimé selon les auteurs et la surface exploitée entre 10000 et 20000(t)/an. Un programme de développement d'entreprises conchylicoles de type familiales, PME et autres est à priori largement justifiable dans le lac de Bizerte et la mer ouverte avoisinante (zone de cap Zebib).La production annuelle moyenne de la pêche est de 86,7 t/an avec une productivité totale de 12,4 kg/ha/an. L’aménagement de la pêcherie, l’introduction d’une aquaculture extensive et l’ensemencement régulier du plan d’eau sont des solutions intéressantes pour améliorer les ressources du lac. La collecte naturelle des algues rouges de type gracilaire n’offre... |
| Tipo: Journal Contribution |
Palavras-chave: Potential resources; Aquaculture development; Shellfish; Exploitation. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/4294 |
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| Isla Molleda, M.. |
| Se aborda la problemática del impacto ambiental del cultivo de camarón en Cuba y la necesidad de encaminar los planes de desarrollo futuro hacia una acuicultura sostenible; la interacción de la actividad camaronera con otras actividades económicas que se desarrollan en la zona costera, y los conflictos sociales que se derivan de la misma, tomando como estudio de caso a la camaronera CALISUR, considerada la mayor granja del país, con 960 ha de estanques de cultivo, ubicada en una región de la cuenca del Cauto de gran importancia económica y social, la zona costera sur central del golfo de Guacanayabo. El estudio comprende la evaluación de la calidad del agua y de los sedimentos de las principales fuentes de abasto de la camaronera CALISUR y la zona costera... |
| Tipo: Theses and Dissertations |
Palavras-chave: Aquaculture development; Shrimp culture. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1521 |
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| Ayinla, O.A.; Nwadukwe, F.O.. |
| The larvae of clarias gariepinus were reared in 3 plastic pools at the stocking dencity of 194.25 fry/m2 with different rates of water exchange an plankton growth for each pool. The fry(6.2mm length) in each plastic pool were fed with supplementary diet of milk powder/egg yolk suspension in the ratio of 1:1 which was replaced with fish meal paste after 8 days of rearing. After 20 days of rearing the fry in the pool with the most plankton bloom and pebles on the bottom, had the lowest motality and maximum total length of 30.4+- 7.8mm. Pleurococcus sp, Navicula sp were found to be in highest concentration in the pool where the best growth pattern was recorded |
| Tipo: Report |
Palavras-chave: Aquaculture development. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/1279 |
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| Registros recuperados: 33 | |
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