|
|
|
|
|
| Aziz, F.K.; Zaki, M.I.; El-Absawy, M. El-G.. |
| Sparus aurata females in captivity were injected with human chorionic gonadotropin hormone (HCG), pituitary extraction and both them during the spawning season. First hormonal treatment was applied as cumulative doses required for successful ovulation ranged from 4500 to 7500 IU\fish, the maximum fertilization percent was 71. The ovulation period under the influence of this treatment extended up to 14 days. In the second experiment, the total dose requirement for successful ovulation ranged from 2 to 4 pituitary extractions. Fish and the maximum fertilization percent recorded was 81, while the longest ovulation period obtained was 15 days. In the third experiment the total doses required for successful ovulation ranged from 2 pituitary extractions and 4500... |
| Tipo: Journal Contribution |
Palavras-chave: Field Study; Biological fertilization; Spawning; Hatching; Larval development; Survival; Spawning; Hatching; Survival. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1908 |
| |
|
|
| Kaldus, S.K.; El-Serafy, S.S.; Assem, S.S.; El-Garabawy, M.M.; El-Absawy, M. El-G.. |
| General pattern of gonadal development in female Trachinotus ovatus was divided into six maturity stages, which are; immature, maturing, nearly ripe, ripe, spawning and spent stages. The maximum value of gonadosomatic index (GSI) was attained in June and July. Total protein content in ovaries varied according to different maturity stages recording maximum value at immature ovaries and minimum at spawning and spent ovaries. The values of GSI in ovaries were inversely correlated to their total protein content at different maturity stages. Seven amino acids (proline, alanine, valine, methionine, isoleucine, leucine and histidine) were found to increase significantly in ripe ovary, followed by a significant decrease in both spawning and completely spent... |
| Tipo: Journal Contribution |
Palavras-chave: Trachinotus ovatus; Ovaries; Total proteins and amino acids; Total lipids and fatty acids Biology Fish Biology http://aims.fao.org/aos/agrovoc/c_925. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1245 |
| |
|
|
|
