Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/57489
Título: Crecimiento y supervivencia de postlarvas de piracanjuba (brycon orbignyanus)
Título(s) alternativo(s): Growth and survival of piracanjuba (brycon orbignyanus) post larvae
Palavras-chave: Densidad de siembra
Frecuencia de alimentación
Larvicultura
Feeding frequency
Larviculture
Densidade de plantio
Data do documento: Jun-2009
Editor: Universidad de Córdoba
Citação: SILVA, M. O. et al. Crecimiento y supervivencia de postlarvas de piracanjuba (brycon orbignyanus). Archivos de Zootecnia, Córdoba, v. 58, n. 222, p. 285-288, jun. 2009.
Resumo: This work was conducted in the fish laboratory of the Environmental Station of Itutinga, CEMIG in January 2002. The objective was to evaluate the behavior of piracanjunba (Brycon orbignyanus) post-larvae at different stocking densities and feeding frequencies. The post-larvae were manteined into eighteen plastic rectangular-shaped boxes of 30 liters of volume. All the boxes posessed individual supply and flow of water with a constant renewal, and water temperature controlled (27oC), trough a heating system of the sort utilized in thermal pools. The experimental treatments consisted of three stocking densities (10, 20 and 30 post-larvae/liter) and two feeding frequencies (every 3 and 6 hours). The design was completely randomized with the treatments arranged into a 3 x 2 factorial scheme (stocking density x feeding frequency) with three replicates per treatment. The results showed that the increase of stocking density reduced linearly the fish's survival. There were significant differences (p<0.05) among the feeding frequencies as to survival, feeding the post-larvae in intervals of 3 hours being better. There were no significant difference among the stocking densities and the feeding frequencies as to average weight and growth of the post-larvae (p<0.05). According to the results obtained, it follows that the highest survival was obtained from the density of 10 larvae/liter, fed every 3 hours.
URI: http://repositorio.ufla.br/jspui/handle/1/57489
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