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| Registros recuperados: 25 | |
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| Bambill, G.A.; Oka, M.; Radonic, M.; López, A.V.; Müller, M.I.; Boccanfuso, J.; Bianca, F.. |
| The present study was conducted to determine the parameters regulating spawning performance of P. orbignyanus wild broodstock. The adaptation to captivity was successfully achieved with minimal stress levels. In three consecutive spawning seasons, the annual photothermal manipulation was not effective for the maturation and natural spawning of females although males were running. Females were HCG injected, releasing non fertilized eggs. Artificial fertilization was carried out after stripping the fish with a total production of 18,000 fertilized eggs in 2001 (egg diameter=800±10 µm), 55,300 in 2002 (egg diameter= 850±12 µm)and 1,635,000 fertilized eggs in 2003 (egg diameter 818.4 ±30.08 µm, oil drop 98.1 ±2.96 µm). For the study of the ovulationtime,... |
| Tipo: Journal Contribution |
Palavras-chave: Fish culture; Marine fish; Brood stocks; Eggs; Induced breeding; Fish culture; Eggs; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2502. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1814 |
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| Oladosu, G.A.; Ayinla, O.A.; Onuoha, G.C.; Needom, J.G.. |
| A study of the performance of Clarias gariepinus (African Mudfish) in a polyculture with Oreochromis niloticus (Tilapia), integrated with broiler chicken production was carried at the African Regional Aquaculture Centre, Nigeria. Three experimrntal treatments were utilized. Treatment I was a polyculture of C. gariepinus and O. niloticus integrated with broiler chicken production, with application of supplemental feed to fish. Treatment II was a repeat of treatment 1, except that no supplemental feed was applied to fish, while treatment III was a polyculture of the two fish species per se with application of supplemental feed to fish. Results showed that the final individual weight, individual weight gain and recovery rate were best for C. gariepinus,... |
| Tipo: Report |
Palavras-chave: Fish culture; Polyculture; Fish culture; Http://aims.fao.org/aos/agrovoc/c_2918. |
| Ano: 1990 |
URL: http://hdl.handle.net/1834/2439 |
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| Fraga, I.; Reyes, R.; Ortega, N.; Regueira, E.; Font, R.; Bravo, A.. |
| In order to establish the management methods in snook Centropomus undecimalis (Bloch, 1792) broodstock (initial average weight 960 g), during 18 month three phases were developed. Fishes were marked, measured, weighed and distributed in 5 m3 fiber glass tanks (stock density 1.3 kg/m3). In the first phase (3 month), different feeding schedules were applied: 1. feeding in alternate days; 2. feeding every day excluding weekends; 3. feeding twice a day. Before maturation phase and during three month, enriched semi humid food was supplied. Finally, during 12 month, artificial feed was supplied. The appetite dynamics in fishes was influenced by the feeding schedule applied. When food was offered in alternate days, higher consumption was observed. Females showed... |
| Tipo: Proceedings Paper |
Palavras-chave: Fish culture; Feeding; Brood stocks; Fish culture; Feeding; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2838. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2077 |
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| Registros recuperados: 25 | |
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