Dinámica del nitrógeno y el fósforo en el cultivo de tilapia del Nilo en estanques de cría excavados

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i11.9699

Palabras clave:

Estanques excavados; Efluente; Cosecha; Calidad del agua.

Resumen

El propósito de este estudio fue determinar el balance de nitrógeno total (TN) y fósforo total (TP) durante el cultivo intensivo de tilapia en estanques excavados. Para cuantificar TN y TP liberados al medio ambiente, el suministro de agua, efluentes en el momento de la cosecha, peces Se analizaron la composición, la alimentación y los sedimentos. El balance de masa entre la cantidad de nutrientes que se inserta a través del alimento, que es transformado en biomasa por los peces y es retenido en el sedimento se calculó en base a la materia seca. La carga de nutrientes proveniente del suministro de agua se calculó en función de la concentración de TN y TP. La dinámica de TN y TP durante el proceso de cosecha en tres tamaños de estanque diferentes identificó que, en promedio, el 2,37% de TN y el 2,05% de TP insertados en el sistema durante la cría se eliminan con 10,64% de TN y el 37,01% de TP se retienen en el sedimento . La entrada de TN y TP al sistema se produce a través del suministro de agua, los peces jóvenes y el alimento, siendo este último responsable de aproximadamente el 92,87% de TN y el 96,05% de TP. La composición del pienso indica que el nivel de P del alimento está por encima de las recomendaciones nutricionales para la especie. La cantidad de TP acumulada en los sedimentos indica que existe la necesidad de buenas prácticas de manejo de la calidad del agua durante el período de cría y manejo de sedimentos antes del inicio de un nuevo ciclo de producción.

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Publicado

08/11/2020

Cómo citar

COLDEBELLA, A.; GODOY, . A. C. .; GENTELINI, . A. L. .; PIANA, P. A. .; COLDEBELLA, P. F.; BOSCOLO, W. R. .; FEIDEN, A. Dinámica del nitrógeno y el fósforo en el cultivo de tilapia del Nilo en estanques de cría excavados. Research, Society and Development, [S. l.], v. 9, n. 11, p. e1319119699, 2020. DOI: 10.33448/rsd-v9i11.9699. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/9699. Acesso em: 23 nov. 2024.

Número

Sección

Ciencias Agrarias y Biológicas