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| Becker,Alexssandro Geferson; Cunha,Mauro Alves da; Garcia,Luciano de Oliveira; Zeppenfeld,Carla Cristina; Parodi,Thaylise Vey; Maldaner,Graciela; Morel,Ademir Farias; Baldisserotto,Bernardo. |
| This study evaluated extracts of Condalia buxifolia as anesthetics for the silver catfish Rhamdia quelen. The effectiveness of eugenol and of the methanolic extract (ME) of C. buxifolia during the transport of this species was also assessed. Fish of two different weights (1.50±0.02 g and 165.70±22.50 g) were transferred to aquaria containing water with the C. buxifolia ME or with fractions obtained from the ME, such as the n-hexane, dichloromethane, ethyl acetate, n-butane and aqueous fractions, at concentrations from 0-300 °L L-1. The C. buxifolia ME in the 0.5-120 °L L-1range caused only light sedation, and the fractions did not have an effect on the fish. In the second experiment, another group of fish was transported for 12 h in 15 plastic bags. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthesia; Fish transport; Heptapteridae; Ion fluxes; Sedative. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300675 |
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| Garcia,Luciano de Oliveira; Barcellos,Leonardo José Gil; Baldisserotto,Bernardo. |
| The objective of this study was to verify net ion fluxes and ammonia excretion in silver catfish transported in plastic bags at three different loading densities: 221, 286 and 365g L-1 for 5h. A water sample was collected at the beginning and at the end of the transport for analysis of water parameters. There was a significant positive relationship between net ion effluxes and negative relationship between ammonia excretion and loading density, demonstrated by the following equations: Na+: y-24.5-0.27x, r2=0.99, Cl-: y=40.2-0.61x, r2=0.98, K+: y=8.0-27.6x, r2=0.94; ammonia excretion: y=-11.43+0.017x, r2=0.95, where y: net ion flux (mmol kg-1 h-1) or ammonia excretion (mg kg-1 h-1) and x: loading density (g). Therefore, the increase of loading density... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Fish transport; Ionoregulation; Load density. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001854 |
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| Serra,Mônica; Wolkers,Carla Patrícia Bejo; Hoshiba,Márcio Aquio; Urbinati,Elisabeth Criscuolo. |
| This study evaluated stress indicators of juvenile piau (Leporinus friderici) during and after a 4-hour transportation in order to establish an appropriate transportation protocol for this type of fish. Fish were transported in plastic bags (133.1 g/L) and sampled before loading, during 1, 2, 3 and 4 h and after transportation (2, 6, 12 and 24 h). Blood samples were analyzed for cortisol and glucose levels, hematocrit, hemoglobin level, number and mean corpuscular volume of erythrocytes. Water pH, dissolved oxygen, temperature and ammonia were monitored before, during and after transportation. No mortality was observed through the experiment. Ammonia levels increased throughout transportation, but the low pH values kept NH3 in safe levels for fish.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cortisol; Fish transport; Stress. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200004 |
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| Salbego,Joseânia; Becker,Alexssandro G.; Gonçalves,Jamile F.; Menezes,Charlene C.; Heldwein,Clarissa G.; Spanevello,Rosélia M.; Loro,Vania L.; Schetinger,Maria Rosa C.; Morsch,Vera M.; Heinzmann,Berta M.; Baldisserotto,Bernardo. |
| This study investigated the effects of the essential oil (EO) from Lippia alba on biochemical parameters related to oxidative stress in the brain and liver of silver catfish (Rhamdia quelen) after six hours of transport. Fish were transported in plastic bags and divided into three treatments groups: control, 30 µL L- 1 EO from L.alba and 40 µL L-1 EO from L.alba. Prior to transport, the fish were treated with the EO from L. alba (200 µL L -1 for three minutes), except for the control group. Fish transported in bags containing the EO did not have any alterations in acetylcholinesterase, ecto -nucleoside triphosphate diphosphohydrolase and 5'nucleotidase activity in the brain or superoxide dismutase activity in the liver. The hepatic catalase (CAT),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthetics; Antioxidant defenses; Biochemical parameters; Fish transport; Oxidative stress. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400811 |
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