The potential of Yucca schidigera extract to reduce the ammonia pollution from shrimp farming

Abstract:

This study investigated the feasibility of using Yucca schidigera extract (YUPE) to reduce ammonia pollution resulting from shrimp farming. YUPE was added at ratios of 18, 36, and 72mgL−1 to effluent from an experimental shrimp culture system containing total ammonia nitrogen (TAN) of 0.592, 0.672, and 0.718mgL−1. TAN reduction increased with an increase in YUPE, and at 18mgL−1 reduced TAN by 71–72% and 86–87% at 6 and 24h, respectively. Shrimp feed containing YUPE at 300, 600, and 1200mgkg−1 was submerged, allowing the ammonia to leach out. The addition of YUPE in feed reduced TAN leaching by 50–83% compared with the control. The application of YUPE in water or feed could considerably reduce the accumulation of ammonia in waste water discharge during shrimp production, thereby providing a feasible solution to ammonia pollution in coastal environments.

Año de publicación:

2012

Keywords:

Fuente:

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