| Registro completo |
| Provedor de dados: |
Neotropical Ichthyology
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| País: |
Brazil
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| Título: |
Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)
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| Autores: |
Mello,Fernanda De
Felippe,Daruzi
Godoy,Leandro C.
Lothhammer,Nívia
Guerreiro,Luis R. J.
Streit Jr.,Danilo P.
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| Data: |
2016-01-01
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| Ano: |
2016
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| Palavras-chave: |
Hypertrophy
Hyperplasia
Muscle growth
Sexing
Tambaqui
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| Resumo: |
ABSTRACT This study aimed to evaluate muscle organization in tambaqui in order to describe the muscle growth process. We analyzed the morphometric pattern of fibers from white muscle of young-adults (300 days) by smaller diameter. The organization of white muscle exhibited a typical morphological pattern found in other fish species. Heavier animals showed higher frequency of larger diameter fibers (>50 μm ) and smaller animals had higher frequency of smaller diameter fibers (<20 μm ) (P =0.005). However, both animals showed the same frequency of intermediate diameter fibers (20-50 μm ). Body weight showed a positive correlation with muscle diameter fiber (r=0.45), being 20-50 μm the diameters that contributed the most to animal weight (P <0.0001). A weak correlation between fiber diameter and animal sex was observed (r=0.2). Females showed higher frequency of large fiber diameters (>50 μm ) than males. However, there was no difference between body weight and sex (P =0.8). Our results suggest that muscle growth is by hypertrophy and hyperplasia due to a mosaic appearance from different diameters fibers, which is characteristic of large size fish species.
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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=S1679-62252016000200206
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| Editor: |
Sociedade Brasileira de Ictiologia
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| Relação: |
10.1590/1982-0224-20150149
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| Formato: |
text/html
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| Fonte: |
Neotropical Ichthyology v.14 n.2 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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