| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Cannibalism, growth performance, and body composition of giant trahira juveniles under different photoperiods
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| Autores: |
Ramos,Shayenne Elizianne
Carvalho,Aline Ferreira Souza de
Castro,Tássia Flávia Dias
Vasconcelos,Ana Carina Nogueira
Veras,Galileu Crovatto
Mourão Júnior,Carlos Alberto
Murgas,Luis David Solis
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| Data: |
2018-06-01
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| Ano: |
2018
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| Palavras-chave: |
Hoplias intermedius
Fish
Lipids
Muscle
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| Resumo: |
Abstract: The objective of this work was to determine the effect of photoperiod on the cannibalism, growth, and body composition of giant trahira (Hoplias intermedius) juveniles. A completely randomized design was employed, with four photoperiods - 0L:24D, 6L:18D, 12L:12D, and 18L:6D, hours of light (L): dark (D) - and four replicates, for a period of 90 days. The analyzed parameters were: cannibalism, growth in weight and length, food consumption, feed conversion, protein efficiency rate, muscle growth, and body composition (moisture, lipid, ash, and crude protein). Fish from the 12L:12D photoperiod showed the highest survival rate and no cannibalism, as well as a great uniformity for length and mass values at the end of the experiment. The best photoperiod for giant trahira juveniles is 12L:12D, as these fish showed growth uniformity and no cannibalism, while fish from the 6L:18D and 18L:6D groups had a greater diameter of white muscle fibers and a higher frequency of greater diameter fibers. Giant trahira showed the lowest value for lipids at 6L:18D and the highest value at 12L:12D. Photoperiod affects survival and cannibalism; regarding body composition, only lipids are influenced by photoperiod.
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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=S0100-204X2018000600664
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s0100-204x2018000600002
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.53 n.6 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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