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Articles by Gilberto Moraes
Total Records ( 1 ) for Gilberto Moraes
  Luís Antonio Kioshi Aoki Inoue and Gilberto Moraes
  Hauling and transport are essential procedures in all fish farms. However, these stimuli are harmful to fish that first respond by the plasma catecholamine and cortisol increases. Among the other physiological stress responses, plasma ions balance is disturbed and glucose rises. Marine salt (NaCl) is empirically proposed in fish transport to reduce the stress and ions losses. To evaluate the physiological stress responses of juvenile matrinxã to hauling and transport, two groups of fish (within plastic bags with freshwater and salted water 6 g L-1) were subjected to transport for 4 h. Plasma cortisol increased in both groups. On the other hand, plasma Na+, Cl- and protein decreased after the transport. No differences were observed between groups of fish transported in freshwater or salted water. Hepatic glycogen decreased suggesting the high energetic cost to matrinxã cope with hauling and transport. Marine salt added to the water used for transporting fish did not reduce the plasma cortisol increases. Matrinxã is very responsive to the studied stressors recommending special care during these procedures. Moreover, complete recovery occurs between 24 to 96 h.
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