Título
Effects of Colored Light on Growth and Nutritional Composition of Tilapia, and Biofloc as a Food Source
Autor
CARLOS ALBERTO OLVERA OLVERA
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
Light stimulation and biofloc technology can be combined to improve the efficiency and
sustainability of tilapia production. A 73-day pilot experiment was conducted to investigate the
effect of colored light on growth rates and nutritional composition of the Nile tilapia fingerlings
(Oreochromis niloticus) in biofloc systems. The effect of colored light on the nutritional composition of
bioflocs as a food source for fish was measured. Three groups were illuminated in addition to natural
sunlight with colored light using RGB light emitting diodes (LEDs) with peak wavelengths ( ) of
627.27 nm for red (R), 513.33 nm for green (G), and 451.67 nm for blue (B) light. LED light intensity
was constant (0.832 mW/cm2), and had an 18-h photoperiod of light per day throughout the study.
The control group was illuminated only with natural sunlight (natural). Tilapia had an average initial
weight of 0.242 g. There was a significant effect of colored light on tilapia growth and composition.
The R group showed the best growth rate, highest survival, and highest lipid content. The B group
showed homogeneous growth with the lowest growth rate and lipid content, but the highest protein
level. On the other hand, the biofloc composition was influenced by the green light in the highest
content of lipids, protein, and nitrogen-free extract.
Producción Científica de la Universidad Autónoma de Zacatecas UAZ
Fecha de publicación
3 de enero de 2020
Tipo de publicación
Artículo
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Público en general
Repositorio Orígen
Repositorio Institucional Caxcán
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