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Essential oils of Cunila galioides and Origanum majorana as anesthetics for Rhamdia quelen: efficacy and effects on ventilation and ionoregulation Neotropical Ichthyology
Cunha,Jessyka A. da; Scheeren,Cecília Á.; Salbego,Joseânia; Gressler,Luciane T.; Madaloz,Laurício M.; Bandeira-Junior,Guerino; Bianchini,Adriane E.; Pinheiro,Carlos G.; Bordignon,Sérgio A. L.; Heinzmann,Berta M.; Baldisserotto,Bernardo.
ABSTRACT This study evaluated anesthetic efficacy and possible effects of the essential oils (EOs) of Cunila galioides (EOC) and Origanum majorana (EOO) on ventilatory rate (VR) and ionoregulation in Rhamdia quelen. In the anesthesia assessments, 50, 100, 200 and 300 μL L-1 EOC and 50, 100, 200, 300, 400 and 500 μL L-1 EOO were tested, and time for induction to sedation and anesthesia stages, as well as recovery, were taken. A second trial employed lower concentrations of both EOs, 10, 25, 50 and 100 μL L-1, in order to verify VR and Na+, K+ and Cl- whole body net fluxes. Sedation was achieved with both oils at 100 µL L-1, and anesthesia at ≥ 200 µL L-1. There was no significant difference between control and EO-treated groups regarding VR, but all fish...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ionoregulatory balance; Marjoram; Pennyroyal; Silver catfish; Ventilatory rate.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100213
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Rhamdia quelen (Quoy & Gaimard, 1824), submitted to a stressful condition: effect of dietary addition of the essential oil of Lippia alba on metabolism, osmoregulation and endocrinology Neotropical Ichthyology
Souza,Carine de Freitas; Salbego,Joseânia; Gressler,Luciane T.; Golombieski,Jaqueline I.; Ferst,Juliana G.; Cunha,Mauro A.; Heinzmann,Berta M.; Caron,Braulio O.; Glanzner,Werner G.; Gonçalves,Paulo B. D.; Baldisserotto,Bernardo.
ABSTRACT The aim of this study was to evaluate the effect of the essential oil of Lippia alba (EOLA) as a feed additive on ionoregulatory and metabolic parameters and pituitary hormones expression in silver catfish, Rhamdia quelen , submitted to a stressful condition (stocking density of 10.6 kg m-3 and limited space). Fish were fed with different concentrations of EOLA (0.0 - control, 0.25 and 0.50 mL kg food-1) for 20 days. Metabolic parameters were not affected by the diet, with the exception of alanine aminotransferase, which was higher in the liver of fish fed 0.50 mL EOLA kg food-1. Plasma ions and activity of H+-ATPase did not change, but fish fed 0.25 mL EOLA kg food-1 presented higher Na+/K+-ATPase activity. Somatolactin expression in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cortisol; Enzymatic activity; Growth hormone; Somatolactin.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400707
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The essential oil from Lippia alba induces biochemical stress in the silver catfish (Rhamdia quelen) after transportation Neotropical Ichthyology
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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