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Volume 45 - Number 1 - 2010


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




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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