Data/hora: 09/06/2024 05:56:21

Provedor de dados: | 96
País: | Brazil
Título: | Dietary protein and energy requirements of juvenile freshwater angelfish
Autores: | Zuanon,Jener Alexandre Sampaio; Salaro,Ana Lúcia; Moraes,Sofia Simões Silveira; Alves,Leandro Moreno de Oliveira; Balbino,Eric Márcio; Araújo,Erick Siqueira.
Data: | 2009-06-01
Ano: | 2009
Palavras-chave: | Growth; Ornamental fish; Productive performance; Protein/energy ratio; Pterophyllum scalare.
Resumo: | Dietary protein and energy requirements of juvenile freshwater angelfish (Pterophyllum scalare) were evaluated. A 3 × 2 factorial design was used, with three dietary crude protein levels being tested (26, 30, and 34% of CP) combined with two digestible energy levels (3,100 and 3,300 kcal DE/kg of diet) in three replicates. Juveniles averaging 2.33 ± 0.26 g were reared in a 25L-aquarium with controlled temperature (26 ± 1ºC), biological filter and stocking density of six fish/aquarium. Fish were fed ad libitum at 09:00 a.m., 2:00 p.m. and 4:30 p.m. The following performance parameters were evaluated: final weight, final length, weight gain, feed intake, feed conversion ratio, specific growth rate, protein efficiency ratio and condition factor. Fish fed diets with 26% CP showed greater protein efficiency values when compared to those fed diets with 34% CP. Diets with 26% of CP and 3100 kcal DE/kg could meet the nutritional requirements of juvenile freshwater angelfish.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600003
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982009000600003
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.38 n.6 2009
Fonte: | info:eu-repo/semantics/openAccess