| Registro completo |
| Provedor de dados: |
5
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| País: |
France
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| Título: |
Slow-release GnRHa treatment prevented atresia during vitellogenesis and induced ovulation of captive wreckfish (Polyprion americanus)
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| Autores: |
Fauvel, Christian
Suquet, Marc
Severe, Armelle
Mylonas, Constantinos C.
Papandroulakis, Nikos
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| Data: |
2008-07
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| Ano: |
2008
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| Palavras-chave: |
Aquaculture
Polyprion americanus
Wreckfish
GnRHa
Gametogenesis
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| Resumo: |
The potential of wreckfish (Polyprion americanus) to breed in captivity was examined. Ovarian activity varied seasonally, with vitellogenesis beginning in November and ending in May. Slow-release implant with gonadotropin-releasing hormone agonist (GnRHa) prevented atresia, and both GnRHa injections or implants at the end of vitellogenesis triggered ovulation after 7 days. Spontaneous spawning was obtained only in one female, and the few eggs produced were of poor viability. Manual stripping and artificial fertilization produced viable gametes and embryos. Therefore, present captivity conditions inhibited final oocyte maturation (FOM) and spawning, but not vitellogenesis and spermatogenesis. GnRHa treatments stimulate FOM and ovulation of viable eggs.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2008/publication-6554.pdf
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| Editor: |
Société Française d'Ichtyologie
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| Relação: |
http://archimer.ifremer.fr/doc/00000/6554/
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| Formato: |
application/pdf
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| Fonte: |
Cybium, Revue Internationale d'Ichtyologie (0399-0974) (Société Française d'Ichtyologie), 2008-07 , Vol. 32 , N. 2 , P. 191
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| Direitos: |
2008 Société Française d'Ichtyologie
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