Consulta: creatorFacets:"Ferreira,Daiane"
Registros recuperados: 2
Data/hora: 01/06/2024 12:24:07

Repeated stressors do not provoke habituation or accumulation of the stress response in the catfish Rhamdia quelen
Provedor de dados: 83
Autores: Koakoski,Gessi; Kreutz,Luiz Carlos; Fagundes,Michele; Oliveira,Thiago Acosta; Ferreira,Daiane; Rosa,João Gabriel Santos da; Barcellos,Leonardo José Gil.
Fish repeatedly experience stressful situations under experimental and aquaculture conditions, even in their natural habitat. Fish submitted to sequential stressors can exhibit accumulation or habituation on its cortisol response. We posed a central question about the cortisol response profiles after exposure to successive acute stressors of a similar and different nature in Rhamdia quelen. We have shown that successive acute stressors delivered with 12-h, 48-h, and 1-week intervals provoked similar cortisol responses in juvenile R. quelen, without any habituation or accumulation. The cumulative stress response is more associated to short acute stressors with very short intervals of minutes to hours. In our work, we used an interval as short as 12h, and no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cumulative stress; HPI axis; Jundiá; Silver catfish.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200453

Antioxidant activity of bee products added to water in tebuconazole-exposed fish
Provedor de dados: 83
Autores: Ferreira,Daiane; Unfer,Taís Cristina; Rocha,Hélio Carlos; Kreutz,Luiz Carlos; Koakoski,Gessi; Barcellos,Leonardo José Gil.
An experiment was conducted to evaluate the potential of honey, propolis, and bee pollen for the reversal of lipid peroxidation induced by tebuconazole (TEB) in South American catfish (Rhamdia quelen), in which the concentration of thiobarbituric acid reactive substances (TBARS), the activity of the antioxidant enzyme glutathione-S-transferase (GST) and the concentrations of non-enzymatic antioxidants, reduced glutathione (GSH), ascorbic acid, and non-protein thiols were assessed. Honey (0.125 g L-1) and bee pollen (0.05 g L-1) added to the water reverse the production of TBARS induced by TEB, while propolis demonstrated a pro-oxidant effect, inducing an increase in TBARS production. The data presented herein suggest that the addition of water to honey and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Bee pollen; Honey; Lipid peroxidation; Propolis; Tebuconazole.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100021