| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Dietary protein and energy requirements of juvenile freshwater angelfish
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| Autores: |
Zuanon,Jener Alexandre Sampaio
Salaro,Ana Lúcia
Moraes,Sofia Simões Silveira
Alves,Leandro Moreno de Oliveira
Balbino,Eric Márcio
Araújo,Erick Siqueira
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| Data: |
2009-06-01
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| Ano: |
2009
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| Palavras-chave: |
Growth
Ornamental fish
Productive performance
Protein/energy ratio
Pterophyllum scalare
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600003
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982009000600003
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.38 n.6 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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