Data/hora: 01/06/2024 12:06:37

Provedor de dados: | 96
País: | Brazil
Título: | Stocking density in the larviculture of Nile tilapia in saline water
Autores: | Luz,Ronald Kennedy; Silva,Walisson de Souza e; Melillo Filho,Reinaldo; Santos,André Eduardo Heringer; Rodrigues,Lucas Alves; Takata,Rodrigo; Alvarenga,Érika Ramos de; Turra,Eduardo Maldonado.
Data: | 2012-12-01
Ano: | 2012
Palavras-chave: | Intensive larviculture; Oreochromis niloticus; Water quality; Water salinity.
Resumo: | The objective of this study was to assess the possibility of increasing the stocking density in the larviculture of Nile tilapia, Oreochromis niloticus, in saline water. Six-day post-hatched larvae (average weight of 0.09±0.002 g), at the start of the exogenous feeding, were stocked in twelve 8 L tanks at densities of 1, 10, 20 and 30 larvae/L. The larvae were fed a diet consisting of 40% crude protein five times per day. During larviculture, water was kept at a salinity of 2 g of common salt/L. At the end of the 28-day experiment, the survival rate, length, weight, temperature, water salinity and conductivity were not affected by the different treatments. The dissolved oxygen and pH, however, decreased as density increased, whereas total ammonia concentration, turbidity and biomass showed a direct relationship with the increase of stocking density. Consequently, the present study shows for the first time that the larviculture of Nile tilapia is possible with up to 30 larvae/L in water with 2 g of salt/L.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200001
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982012001200001
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.41 n.12 2012
Fonte: | info:eu-repo/semantics/openAccess