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Eficiencia de absorción en postlarvas de camarón blanco del Pacífico, Litopenaeus vannamei, alimentadas con una dieta de levadura marina de marismas de manglar
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Date
2021
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Show full item recordAlternative Title
Absorption efficiency in post-larvae of the shrimp Litopenaeus vannamei fed a diet of marine yeast from mangrove mudflatsAbstract
El presente estudio investigó la levadura marina como fuente de alimento en el camarón blanco Litopenaeus vannamei. Se determinó la eficiencia de absorción de levaduras midiendo la proporción de materia orgánica asimilada por las postlarvas de camarón. La levadura marina se aisló y se propagó en laboratorio a partir de una muestra de sedimento obtenida en una marisma de manglar. Seis etapas de desarrollo de postlarvas de camarón, desde PL-5 días hasta PL-35 días fueron alimentadas exclusivamente con tres concentraciones de levaduras (1,5 × 105, 3 × 105, 5 × 105 cel/mL). El promedio general de la absorción de levadura fue de 65,85 ± 11,42 %. El análisis de varianza de dos vías ANOVA (p < 0,05) mostró que la eficiencia de absorción de levadura en post-larvas de camarón no se vio afectada por las concentraciones de levaduras; tampoco las concentraciones de levaduras interactuaron con la edad de las postlarvas. La eficiencia de absorción de 67,30 % registrada en postlarvas jóvenes (PL-5 a PL-15) fue significativamente diferente a la absorción registrada en post-larvas de mayor edad (PL-20 a PL-35) con un promedio de 60,21 % (p < 0,05). La eficiencia de absorción relativamente alta de levadura en postlarvas de L. vannamei contribuye a una mejor comprensión del rol de los microorganismos como complemento nutricional en la acuicultura costera.The present study investigated marine yeast as a food source in the Pacific whiteshrimp Litopenaeus vannamei. Yeast absorption efficiency was determined by measuring the proportion of organic matter assimilated by shrimp post-larvae (PLs). The yeast was isolated and propagated in the laboratory from a sediment sample obtained from a mangrove mudflat. Shrimp post-larvae at six stages, from PL-5-days-old to PL-35-days-old were fed exclusively with yeasts, at three concentrations (1.5 × 105, 3 × 105, 5 × 105 cell/mL). The overall average of yeast absorption was around 65.85 ± 11.42 %. The two-way analysis of variance ANOVA (p < 0.05) showed that the efficiency of yeast absorption was not affected by the concentrations of yeasts as a food source: none of the yeast concentrations interacted with the age of the post-larvae. The absorption efficiency of 67.30 % registered in young post-larvae (PL 5-days-old to PL15-days old) was significantly different than the efficiency registered for older post-larvae (PL 20 days old to PL 35 days-old) with an average of 60.21 % (p < 0.05). The relatively high absorption efficiency of yeast in L. vannamei post-larvae contributes to a better understanding of the potential role of microorganisms as complementary feedstuffs in coastal aquaculture.
Journal
Boletín de Investigaciones Marinas y CosterasVolume
50Issue/Article Nr
2Page Range
pp. 73-90Resource/Dataset Location
http://boletin.invemar.org.co/ojs/index.php/boletin/article/view/1012/867Collections