Artigo Acesso aberto Produção Nacional Revisado por pares

Effects of food deprivation in muscle structure and composition of traíra (Hoplias malabaricus): potential implications on flesh quality

2009; Instituto de Tecnologia do Paraná (Tecpar); Volume: 52; Issue: 2 Linguagem: Inglês

10.1590/s1516-89132009000200025

ISSN

1678-4324

Autores

Flávia Sant’Anna Rios, Lucélia Donatti, Marisa Narciso Fernandes, Ana Lúcia Kalinin, Francisco Tadeu Rantin,

Tópico(s)

Animal Nutrition and Physiology

Resumo

Hoplias malabaricus (traíra) were experimentally starved (0 to 240 days) and subsequently re-fed for 30 days (after 90 and 240-d fasting). Long-term starvation produced minor changes in muscle composition, but shrinkage of muscle fibres was a conspicuous result. The diameter of muscle fibres decreased gradually and the spaces among them increased as the starvation period progressed. After re-feeding, fish prior starved for 90 days presented partial restoration on diameter of muscle fibres. However, the fibres remained shrunken after re-feeding following 240-d fasting. While the lipid content did not change, the protein levels fell after 240-d fasting, but they were restored after re-feeding

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