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escort istanbul animal porn Evaluating the efficacy of commercially available aflatoxin binders for decreasing the effects of aflatoxicosis on Pacific white shrimp Litopenaeus vannamei | Tapia-Salazar | HIDROBIOLÓGICA

Evaluating the efficacy of commercially available aflatoxin binders for decreasing the effects of aflatoxicosis on Pacific white shrimp Litopenaeus vannamei

Mireya Tapia-Salazar, Oscar D. García-Pérez, Martha G. Nieto-López, David A. Villarreal-Cavazos, J. Gamboa-Delgado, L. Elizabeth Cruz-Suárez, Denis Ricque-Marie

Resumen


Feeding aflatoxin-contaminated diets to shrimp juveniles reduces feed intake and growth rate, suppresses the immune system, causes hepatic lesions, and, in some cases, decreases survival rates. There is scarce information on the effectiveness of commercially available aflatoxin binders to reduce aflatoxicosis in shrimp. Goals. We investigated the effect of corn that was naturally contaminated with aflatoxins on the growth performance and nitrogen retention efficiency of white shrimp juveniles L. vannamei and the potential of three commercially available anti-aflatoxin additives. Methods. 20 tanks (60L) were stocked with 10 shrimp weighing 210±4mg. Tanks were divided into five treatments with four replicates each. Shrimp were fed twice daily with either the contaminated diet (75 μg kg–1 total aflatoxins), the contaminated diet supplemented with 2 g kg-1 Aflabalan®, 2 g kg-1 Mycosorb®, and 2.5 g kg-1 Mycoflix plus®, or the uncontaminated diet to the control group for 42 days. Results. In terms of the diet containing aflatoxin without binding agents, the consumption, growth rate, and nitrogen-retention efficiency were significantly lower than the control treatment. The experimental diets did not affect the feed conversion ratio or survival rates in any treatment. The inclusion of any of the aflatoxin binders evaluated in the present study did not produce growth rates comparable to those of shrimp fed the uncontaminated diet. Conclusions. Aflatoxins decreased growth performance in a population of white shrimp juveniles L. vannamei. Although all the aflatoxin binders evaluated in this study caused an improvement, they were not effective in reversing all the negative effects caused by feeding aflatoxin-contaminated diets to white shrimp juveniles L. vannamei.

Palabras clave


Aflatoxin; aflatoxin binders; Litopenaeus vannamei; shrimp

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ISSN 0188-8897

 HIDROBIOLOGICA. Vol.27 Año 2017, Número 3, septiembre-diciembre de 2017, es una publicación cuatrimestral editada por la Universidad Autónoma Metropolitana, a través de la Unidad    Iztapalapa, División de Ciencias Biológicas y de la Salud, Departamento de Hidrobiología. Prolongación Canal de Miramontes 3855, colonia Ex Hacienda San Juan de Dios, delegación Tlalpan,  C.P. 14387, México, Ciudad de México y Av. San Rafael Atlixco, núm. 186, colonia Vicentina, delegación Iztapalapa, C.P. 09340, México, Ciudad de México, teléfono 5804-6475. Página  electrónica de la revista: http://hidrobiologica.izt.uam.mx y dirección electrónica: rehb@xanum.uam.mx. Editora Responsable María Esther Meave del Castillo. Certificado de Reserva de  Derechos al Uso Exclusivo de Título No. 04-2010-072711181500-203, ISSN para version impresa e ISSN para revista electronica son otorgados por el Instituto Nacional del Derecho de Autor. Responsable de la última actualización  de este número María Esther Meave del Castillo, Universidad Autónoma Metropolitana Unidad Iztapalapa, Av. San Rafael Atlixco, núm. 186, colonia Vicentina, delegación Iztapalapa, C.P.  09340, México, Ciudad de México. Fecha de última modificación: 28 de diciembre de 2017. Tamaño de archivo: 30 MB.Las opiniones expresadas por los autores no necesariamente reflejan la  postura del editor de la publicación.Queda estrictamente prohibida la reproducción total o parcial de los contenidos e imágenes de la publicación sin previa autorización de la Universidad  Autónoma Metropolitana. 

ISSN para versión impresa 0188-8897 

ISSN para version electronica 2448-7333