Efeito do ambiente pós-transporte na recuperação dos indicadores de estresse de pacus juvenis, &lt;em&gt;Piaractus mesopotamicus&lt;/em&gt;

Takahashi, Leonardo Susumu; Abreu, Janessa Sampaio de; Biller, Jaqueline Dalbello; Urbinati, Elisabeth Criscuolo

doi:10.4025/actascianimsci.v28i4.610

Cited by 21 publications

(19 citation statements)

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“…Plasma cortisol is one of the most used indicators to evaluate stress in fish (Wendelaar Bonga, 1997) and the two major actions of this hormone are the control of the ionoregulatory balance and energy metabolism (Liew et al, 2015). The electrolytic imbalance can be observed by changes in plasma or blood ions (McDonald, Milligan, 1997;Wendelaar Bonga, 1997;Takahashi et al, 2006). Glucose levels are also widely used as indicator of stress, hyperglycaemia being reported for several teleosts in this situation (Barton, Iwama, 1991).…”

Section: Introductionmentioning

confidence: 99%

Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba

et al. 2017

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The aim of this study was to evaluate if Lippia alba has different chemotypes according to the chemical composition of the essential oil (EO) considering collection site, and if the EO may have different effects on blood and plasma parameters in silver catfish, Rhamdia quelen, during and immediately after anesthesia. The citral (EO-C) and linalool (EO-L) chemotypes were identified, and both presented similar anesthetic effects for silver catfish. Fish were exposed to two concentrations of each EO, which induced slow and fast anesthesia (100 and 300 µL L -1 , respectively). Blood ions did not change at any time of anesthesia induction and recovery and, therefore, the electrolyte balance was not altered. Blood gases oscillated through all exposure and recovery times, but there was an increase in pO 2 after 10 min recovery in fish anesthetized with EO-C. Glucose increased in fish exposed to both EOs when compared with the control group. Overall, exposure to both EOs (except 100 µL L -1 EO-L at most times) reduced plasma cortisol levels compared to the control and/or ethanol groups. However, as plasma creatinine levels in fish anesthetized with EO-C were higher than control fish, the use of EO-L is preferable.Keywords: Blood gas, Cortisol, Glucose, Plasma ions, Silver Catfish.O objetivo deste estudo foi avaliar se Lippia alba apresenta diferentes quimiotipos de acordo com a composição química do óleo essencial (OE), considerando local de coleta e se o OE causa diferentes efeitos nos parâmetros sanguíneos e plasmáticos em jundiá, Rhamdia quelen, durante e imediatamente após a anestesia. Os quimiotipos citral (OE-C) e linalol (OE-L) foram identificados e ambos apresentaram efeito anestésico semelhante para jundiá. Os peixes foram expostos a duas concentrações de cada OE, que induziram anestesia lenta e rápida (100 e 300 mL L -1 , respectivamente). Íons sanguíneos não se alteraram em nenhum tempo e consequentemente, o equilíbrio eletrolítico não foi alterado. Os gases sanguíneos oscilaram durante todo tempo de exposição e recuperação, mas houve aumento na pO 2 após 10 min de recuperação em peixes anestesiados com OE-C. Níveis sanguíneos de glicose aumentaram nos peixes expostos a ambos OEs quando comparados com o grupo controle. De um modo geral, a exposição a ambos OEs (exceto 100 µL L -1 OE-L na maioria dos tempos) reduziu o cortisol plasmático comparado aos grupos controle e etanol. No entanto, como os níveis de creatinina plasmática em peixes anestesiados com OE-C foram maiores que nos peixes controle, é preferível o uso do OE-L.

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Section: Introductionmentioning

confidence: 99%

Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba

et al. 2017

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“…These routine procedures can generate various stressors that have the potential to affect the performance and welfare of the fish (Takahashi, Abreu, Biller, & Urbinati, 2006;Vidal et al, 2008;Weber, Peleteiro, Martín, & Aldegunde, 2009;Delbon & Paiva, 2012 physiological functions is, therefore, crucial in maintaining the welfare of the fish throughout the production process (Ueta, Suzuki, Sugimoto, Uchida, & Mashimo, 2007;Brandão, Gomes, Crescêncio, & Carvalho, 2008;Adamante, Nuñer, Barcellos, Soso, & Finco, 2008). The physiological responses of fish to stressors are generally classified as primary and secondary (Gonçalves, Santos, Fernandes, & Takahashi, 2008;Zahl, Kiessling, Samuelsen, & Hansen, 2009), and each of these is associated with alterations in specific hematological or biochemical parameters that may be employed as stress indicators (Barbosa, Moraes, & Inoue, 2007;Morgan & Iwama, 1997).…”

Section: Introductionmentioning

confidence: 99%

<b>Physiological and hematological responses of Nile tilapia (<i>Oreochromis Niloticus</i>) to different anesthetics during simulated transport conditions

Navarro¹,

Franca

Paludo

et al. 2016

Acta Sci. Technol.

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ABSTRACT. Minimization of stress during the transportation of live fish is essential in maintaining the welfare and performance of the animals. In order to test the hypothesis that stress during transport of fingerlings of Nile tilapia (Oreochromis niloticus) can be reduced with the aid of the anesthetics menthol, eugenol or benzocaine, we have assessed the effects of these agents at various concentrations on the physiological parameters and survival rates of fish subjected to conditions simulating those normally used in transportation. , maintained levels of plasma cortisol and glucose that were lower than those of the stressed but untreated controls and within the physiological limits of the baseline values for this species. Under these conditions, the survival rate was 100%, suggesting that stress was substantially reduced despite dense consignment. Treatments involving higher doses of the studied agents induced significant anesthetic toxicity. , mantiveram níveis de cortisol no plasma e de glucose que foram menores do que os dos controles não tratados e estressados, mas dentro dos limites fisiológicos dos valores da linha de base para esta espécie. Sob estas condições, a taxa de sobrevivência foi de 100%, o que sugere que o estresse foi substancialmente reduzido, apesar da remessa densa. Os tratamentos que envolvem doses mais elevadas dos agentes estudados induzindo uma toxicidade anestésica mais significativa.Palavras-chave: mentol, bezocaína, eugenol, peixe.

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“…Em espécies nativas como o tambaqui (Colossoma macropomum), o pirarucu (Arapaima gigas), a matrinxã (Brycon amazonicus), o pacu (Piaractus mesopotamicus), o pintado (Pseudoplatystoma corruscans) e o jundiá (Rhamdia quelen) várias alterações hormonais, metabólicas, iônicas e hematológicas, em decorrência do estresse de transporte, foram registradas (GOMES et al, 2003;CARNEIRO, 2006;TAKAHASHI et al, 2006;FAGUNDES;URBINATI, 2008;CARNEIRO et al, 2009).…”

Section: Discussionunclassified

“…As análises hematológicas são utilizadas largamente na avaliação do estado de saúde de peixes (TAVARES-DIAS et al, 2009), sendo uma ferramenta complementar para quantificação do estresse ocasionado por práticas de manejo como o protocolo de transporte. No experimento com b-glucano as alterações hematológicas observadas incluem elevação da concentração de hemoglobina nos peixes isentos da suplementação de b-glucano e da HCM nos tratamentos de 0; 0,1 e 0,2% de b-glucano.…”

Section: Discussionunclassified

Respostas de tambaquis ao estresse por transporte após alimentação com dietas suplementadas com β-glucano

et al. 2012

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Efeito do ambiente pós-transporte na recuperação dos indicadores de estresse de pacus juvenis, <em>Piaractus mesopotamicus</em>

Cited by 21 publications

References 0 publications

Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba

Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba

<b>Physiological and hematological responses of Nile tilapia (<i>Oreochromis Niloticus</i>) to different anesthetics during simulated transport conditions

Respostas de tambaquis ao estresse por transporte após alimentação com dietas suplementadas com β-glucano

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