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Volume 45 - Number 1 - 2010
Article

 


Evaluation of methods for eliminating egg stickiness of the bullseye puffer fish Sphoeroides annulatus (Pisces: Tetraodontidae)

L. Estela Rodríguez-Ibarra¹ M. Isabel Abdo-de la Parra¹ Gustavo A. Rodríguez-Montes de Oca² M. Selene Moreno-Hernández² Gabriela Velasco-Blanco¹ Noemí García-Aguilar¹ y Luis S. Álvarez-Lajonchère¹

 

1Centro de Investigación en Alimentación y Desarrollo, A.C., Av. Sábalo-Cerritos S/N, C.P. 82010 Mazatlán, Sinaloa, México.

2Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa. Paseo Claussen S/N, C. P. 82000 Mazatlán Sinaloa, México

 

E-mail: eibarra@ciad.mx

 

Six different hatching treatments and one control were used to eliminate egg stickiness of fertilized bullseye puffer fish Sphoeroides annulatus eggs in this experiment. Each treatment was carried out in triplicate and the eggs were incubated in fiberglass tanks. A fertilization rate of 96.2% ± 2.4% was obtained and significant differences were observed between treatments. The highest hatching rate occurred at 96.4 ± 2% with the protease enzyme solution whilst the lowest rate was observed in the control (18.8 ± 5.3%). The hatching success of the bullseye puffer fish is significantly improved by eliminating egg adhesion

 

Key words: Degumming, incubation, hatching, bullseye puffer

 

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