Salt incorporated diets for enhancing growth performance and survival in gilthead sea bream <i>Sparus aurata</i> L. juveniles reared in low saline brackish water

Samuel Appelbaum; Antonysiluvai Jesuarockiaraj

doi:10.3989/scimar.2009.73s1213

Autores/as

Samuel Appelbaum The Bengis Centre for Desert Aquaculture, The Albert Katz Department of Dryland Biotechnologies, The Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev
Antonysiluvai Jesuarockiaraj The Bengis Centre for Desert Aquaculture, The Albert Katz Department of Dryland Biotechnologies, The Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev

DOI:

https://doi.org/10.3989/scimar.2009.73s1213

Palabras clave:

dorada, sal dieta, crecimiento, supervivencia, baja salinidad, agua salobre, agua geotérmica, acuicultura de las tierras áridas

Resumen

A raíz de las observaciones anteriores, este estudio se realizó para determinar el nivel de sal requerido en la dieta de la dorada (Sparus aurata L.) con el propósito de incrementar el crecimiento y la supervivencia en aguas salobres con salinidad de 2.9‰ TDS. Los juveniles (X = 0.58 g) fueron criados durante 10 semanas en doce tanques con 65 organismos en cada uno. Cuatro dietas fueron probadas: control sin adición de sal y adicionadas con el 12, 14 y 16% de sal. Los peces fueron alimentados ad libitum manualmente tres veces al día. Todas las dietas fueron bien aceptadas, sin embargo la mayor tasa de crecimiento se obtuvo con la dieta que adicionaba el 12%, seguida por la del 14%, la dieta control y la de 16% de sal agregada (p < 0.05). La mayor tasa de crecimiento específico, conversión alimenticia y relación de eficiencia proteica se observó con la dieta del 12%. La mayor supervivencia (88%) se encontró con la dieta del 12% y la menor con 16% y en el grupo control (80%). Este estudio demuestra que el crecimiento en la dorada criada en aguas de baja salinidad puede mejorarse significativamente mediante la adición del 12% de sal a su dieta.

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Citas

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