Producción de Oreochromis niloticus alimentada con Hermetia illucens en un sistema de recirculación acuícola.
Fecha
2016-12
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Universidad EARTH
Resumen
En el presente proyecto se describe la construcción de un Sistema de Recirculación Acuícola (SRA), su estabilización para la producción de alevines de tilapia (Oreochromis niloticus), además de la producción mosca soldado negro (Hermetia illucens) para la alimentación de los alevines en las etapa de crecimiento combinado en tres diferentes tratamientos con concentrado comercial. El mismo se realizó en las instalaciones de la finca integrada orgánica de la Universidad EARTH en Las Mercedes, Guácimo, Limón, Costa Rica. El sistema de recirculación acuícola se construyó con seis tanques de 1 m3 de capacidad de agua para el cultivo de 50 peces y una producción de 25 kg por ciclo cada tanque de cultivo. Este sistema consta con diferentes componentes que ayudan a la limpieza del agua y a su reutilización, entre estos se encuentra: un sistema de aireación para proveer de oxígeno disuelto al agua, filtro mecánico para la remoción de sólidos, sedimentador de solidos suspendidos, filtro de rayos UV para eliminación de patógenos, filtro biológico desnitrificador de compuestos nitrogenados disueltos en el agua, un reservorio de agua para la recirculación y un reservorio más para captar agua de lluvia y suministrar el agua necesaria al sistema. Los tratamientos establecidos, con dos repeticiones cada uno, constan en: tratamiento 1 alimentación con 100 % concentrado comercial (testigo), tratamiento 2 con alimentación de 75 % concentrado comercial y un 25 % de harina de mosca soldado negro y tratamiento 3 con alimentación de 50 % concentrado comercial y un 50 % de harina de mosca soldado negro. Este estudio tuvo una duración de 15 semanas, durante este tiempo se realizaron muestreo para el crecimiento de las tilapias una vez por semana. Cada tratamiento inicio con 50 alevines cada uno con un peso aproximado de siembra de 2,8 g en los tratamientos y con un tiempo de aclimatación de 9 días antes de comenzar la evaluación. Los resultados demostraron que el tratamiento 2 muestra diferencia estadísticamente significativa (p<0,05) superior al tratamientos 1 y al tratamiento 3 en cuanto al incremento en peso y tasas de crecimiento absoluto, relativo y especifico.
In this project the construction of a recirculation aquiculture system (RAS), it’s a stabilization for the production of tilapia fry (Oreochromis niloticus) is described along with the grub black soldier fly production (Hermetia illucens) for feeding the fry in growth stage combination with three different treatments which were commercial concentrated. It was carried out at the premises of integrated organic farm EARTH University in Las Mercedes, Guácimo, Limón, Costa Rica. Recirculating aquaculture system was constructed with six tanks of 1 m3 of water to cultivate 50 fishes and an output of 25 kg per cycle each culture tank. This system consists of several components that help clean water and reuse, among these is an aeration system to provide dissolved water oxygen, mechanical filter for solids removal, sedimentation of suspended solids, filter rays UV elimination of pathogens, biological filter for denitrification of N compounds dissolved in the water, a water reservoir for recirculation and a reservoir to capture more rainwater and water needed to supply the system. Established treatments with two repetitions each, consist: treatment one feed with 100 % commercial concentrate (control), treatment two power 75 % commercial concentrate and 25 % of flour soldier fly black and treatment 3 power 50 % commercial concentrate and 50 % of flour of black soldier fly. This study lasted 15 weeks, during this time sampling for growing tilapia once a week were performed. Each treatment starts with 50 kg fry each weighing approximately 2,8 g seed treatments and with a time of nine days acclimatization before starting the evaluation. The results showed that treatment two shows statistically significant difference (p<0.05) than treatments one and one to treatment as to weight increase and rates absolute, relative and specific growth.
In this project the construction of a recirculation aquiculture system (RAS), it’s a stabilization for the production of tilapia fry (Oreochromis niloticus) is described along with the grub black soldier fly production (Hermetia illucens) for feeding the fry in growth stage combination with three different treatments which were commercial concentrated. It was carried out at the premises of integrated organic farm EARTH University in Las Mercedes, Guácimo, Limón, Costa Rica. Recirculating aquaculture system was constructed with six tanks of 1 m3 of water to cultivate 50 fishes and an output of 25 kg per cycle each culture tank. This system consists of several components that help clean water and reuse, among these is an aeration system to provide dissolved water oxygen, mechanical filter for solids removal, sedimentation of suspended solids, filter rays UV elimination of pathogens, biological filter for denitrification of N compounds dissolved in the water, a water reservoir for recirculation and a reservoir to capture more rainwater and water needed to supply the system. Established treatments with two repetitions each, consist: treatment one feed with 100 % commercial concentrate (control), treatment two power 75 % commercial concentrate and 25 % of flour soldier fly black and treatment 3 power 50 % commercial concentrate and 50 % of flour of black soldier fly. This study lasted 15 weeks, during this time sampling for growing tilapia once a week were performed. Each treatment starts with 50 kg fry each weighing approximately 2,8 g seed treatments and with a time of nine days acclimatization before starting the evaluation. The results showed that treatment two shows statistically significant difference (p<0.05) than treatments one and one to treatment as to weight increase and rates absolute, relative and specific growth.
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ACUICULTURA, TILAPIA, OREOCHROMIS NILOTICUS, ALIMENTACION DE PECES, HERMETIA ILLUCENS