In vitro manipulation of egg activation in the open thelycum shrimp Litopenaeus
This research was designed to develop a basis for the in vitro manipulation of egg activation in Litopenaeus. The timing and sequence of events associated with egg activation of three species of Litopenaeus: L. occidentalis, L. stylirostris, and L. vannamei are described. Spawning in cold seawater...
| Autores Principales: | Rojas, Ericka, Alfaro, Jorge |
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| Formato: | Artículo |
| Idioma: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: |
http://dx.doi.org/10.1016/j.aquaculture.2006.12.025 http://hdl.handle.net/11056/24274 |
| Sumario: |
This research was designed to develop a basis for the in vitro manipulation of egg activation in Litopenaeus. The timing and
sequence of events associated with egg activation of three species of Litopenaeus: L. occidentalis, L. stylirostris, and L. vannamei
are described. Spawning in cold seawater (21.5 °C) induces a significant delay in cortical rod release as well as in hatching
envelope formation. Magnesium concentration at 318.8 and 5.2 mg l−1 did not induce any detectable variation in egg activation. In
vitro availability of unfertilized eggs was accomplished by dissecting ovaries at the time of spawning; a latency period in dry
conditions from 1 to 10 min induced no detrimental effect on initiation of egg activation. In addition, an in vitro assay for
evaluating interspecific and intraspecific primary binding among species of Litopenaeus is presented.
© 2006 Elsevier B.V. All rights reserved. |
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