Registro completo |
Provedor de dados: |
BABT
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País: |
Brazil
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Título: |
Growth and survival of dorado Salminus brasiliensis (Pisces, Characidae) post-larvae cultivated with different types of food and photoperiods
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Autores: |
Schütz,Jackson Haroldo
Nuñer,Alex Pires de Oliveira
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Data: |
2007-05-01
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Ano: |
2007
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Palavras-chave: |
Dorado
Food type
Larviculture
Photoperiod
Salminus brasiliensis
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Resumo: |
The effect of food and photoperiod on dorado (Salminus brasiliensis) post-larvae growth and survival was investigated using the following treatments: LD (Light: Dark) 24:0 + Artemia nauplii (A), LD 24:0 + fish prey (F), LD 14:10 + A, LD 14:10 + F, LD 0:24 +A and LD 0:24 + F. Prochilodus lineatus larvae were used as fish prey. Higher survival rates were registered in fish prey treatments (P<0.05) and were not influenced by photoperiod whereas in Artemia treatments, the survival was very low, but directly proportional to light increase (P<0.05). The better growth in LD 0:24 was related to a safe-energy strategy that reduced energy consumption whereas in LD 24:0, the higher energy consumption reduced the growth. In intermediate photoperiod, the post-larvae did not define a strategy to capture preys, using alternatively the static safe-energy and the swimming consuming energy, which caused higher heterogeneity in growth.
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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=S1516-89132007000300010
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Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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Relação: |
10.1590/S1516-89132007000300010
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Formato: |
text/html
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Fonte: |
Brazilian Archives of Biology and Technology v.50 n.3 2007
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Direitos: |
info:eu-repo/semantics/openAccess
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