INDUCED SPAWNING OF THE COMMON SNOOK, Centropomus undecimalis, IN CAPTIVITY USING GnRH-a IMPLANTS
Culture of C. undecimalis shows great potential as this species tolerates handling and adapts easily to captivity. However, the difficulty in achieving spawning in captivity is a major obstacle for the development of commercial scale farming. Spawning of common snook was achieved using GnRH-a implan...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DE TABASCO |
| Repositorio: | Ecosistemas y Recursos Agropecuarios |
| Idioma: | inglés |
| OAI Identifier: | oai:era.ujat.mx:article/304 |
| Acceso en línea: | https://era.ujat.mx/index.php/rera/article/view/304 |
| Access Level: | acceso abierto |
| Palabra clave: | Centropomus undecimalis snook induction to spawning GnRH-a quality eggs |
| Sumario: | Culture of C. undecimalis shows great potential as this species tolerates handling and adapts easily to captivity. However, the difficulty in achieving spawning in captivity is a major obstacle for the development of commercial scale farming. Spawning of common snook was achieved using GnRH-a implants in single 100 and 200 µg doses per fish; control group specimens received no hormone and did not spawn. Both GnRH-a trial doses resulted in spawning with up to 100% fertilization rates per experimental unit, and a range of 60 – 76% per treatment. A 50 – 100% hatching rate was obtained and larvae were between 1.56 ± 0.08 and 1.98 ± 0.05 mm total length after yolk sac absorption. |
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