Consulta: creatorFacets:"Cunha,Mauro Alves da"
Registros recuperados: 7
Data/hora: 01/06/2024 02:30:42

Anesthetic induction and recovery of Hippocampus reidi exposed to the essential oil of Lippia alba
Provedor de dados: 83
Autores: Cunha,Mauro Alves da; Silva,Bruno Ferreira da; Delunardo,Frederico Augusto Cariello; Benovit,Simone Cristina; Gomes,Levy de Carvalho; Heinzmann,Berta Maria; Baldisserotto,Bernardo.
The aim of this study was to identify the times of anesthetic induction and recovery in slender seahorses (Hippocampus reidi) that were exposed to the essential oil of Lippia alba (EO), as well as the efficacy of EO as a stress-reducing agent in the transport of this species. Slender seahorses were placed in 1-L aquaria containing different concentrations of EO (0, 10, 20, 50, 150, 300 and 450 µL L-1), and after induction, fish were transferred to aquaria that were free of anesthetic to evaluate their recovery time. In an additional experiment, slender seahorses were transported in plastic bags with 15 µL L-1 of EO for 4 or 24 h. The increased concentration of EO proportionally decreased the time required for the induction of anesthesia. EO treatment (15...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood glucose; Leukocyte count; Seahorse; Stress.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300022

Efficacy of eugenol and the methanolic extract of Condalia buxifolia during the transport of the silver catfish Rhamdia quelen
Provedor de dados: 83
Autores: 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

Low water hardness and pH affect growth and survival of silver catfish juveniles
Provedor de dados: 65
Autores: Copatti,Carlos Eduardo; Garcia,Luciano de Oliveira; Kochhann,Daiani; Cunha,Mauro Alves da; Becker,Alexssandro Geferson; Baldisserotto,Bernardo.
The objective of this study was to investigate the effects of exposure to low water hardness (0, 25 and 50mg CaCO3L-1) into the 6.0-8.0 pH range to silver catfish juveniles (Rhamdia quelen) survival and growth after 32 days. Juveniles kept at zero water hardness presented higher mortality at pH 7.0 and 8.0 than those submitted to other treatments. Weight of juveniles exposed to pH 6.0 and zero water hardness was significantly higher than those kept at the same water hardness and other pH. Survival and growth of juveniles exposed to 25 and 50mg CaCO3 L-1 was not affected in the 6.0-8.0 pH range. Therefore, the best water hardness for silver catfish juveniles growth is 25-50mg CaCO3 L-1 and at low water hardness (next zero) pH must be reduced.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidic water; Alkaline water; Calcium; Growth; Mortality; Rhamdia quelen.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800030

Anesthesia of silver catfish with eugenol: time of induction, cortisol response and sensory analysis of fillet
Provedor de dados: 65
Autores: Cunha,Mauro Alves da; Zeppenfeld,Carla Cristina; Garcia,Luciano de Oliveira; Loro,Vania Lucia; Fonseca,Milene Braga da; Emanuelli,Tatiana; Veeck,Ana Paula de Lima; Copatti,Carlos Eduardo; Baldisserotto,Bernardo.
The aim of this study was to identify the time of anesthetic induction and recovery of silver catfish (Rhamdia quelen) exposed to eugenol. It was also determined the efficacy of the anesthetic as a stress reducing agent and performed a sensory analysis of the fillets from fish exposed to this substance. The silver catfish were exposed to air for 1min to carry out biometry, and blood was collected at 0, 1 and 4 hours later. Eugenol can be used in the range of 20-50mg L-1 for anesthetic induction in silver catfish, and recovery time from anesthesia was not affected by eugenol concentration. The control group showed significantly higher cortisol levels 4 hours after biometry than at time zero. Fish anesthetized with eugenol (50mg L-1) presented significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clove oil; Rhamdia quelen; Sedation; Stress; Taste.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000009

Crescimento de cordeiros abatidos com diferentes pesos: 2. Constituintes corporais
Provedor de dados: 65
Autores: Pires,Cleber Cassol; Silva,Lisiane Furtado da; Farinatti,Luís Henrique Ebling; Peixoto,Luiz Antero de Oliveira; Fülber,Márcio Elias; Cunha,Mauro Alves da.
O experimento foi realizado no Setor de Ovinocultura do Departamento de Zootecnia da Universidade Federal de Santa Maria, com o objetivo de determinar o crescimento de órgãos e outros constituintes do corpo de cordeiros, e suas proporções em relação ao peso vivo (PV) e peso de corpo vazio (PCV). Utilizaram-se 22 cordeiros machos inteiros, filhos de carneiros Texel e ovelhas cruzas (Texel x Ideal). Desses, quatro foram abatidos ao nascimento, e os restantes ao desmame e aos 28 e 33kg. A determinação do crescimento dos constituintes corporais foi realizada através de equações alométricas, utilizando-se o logaritmo do peso de cada componente corporal, em função do logaritmo do PCV. As proporções do trato gastrintestinal (TGI), do conjunto de órgãos internos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alometria; Carcaça; Componentes do peso vivo; Peso de corpo vazio; Ovinos.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000500022

Anesthetic induction of juveniles of Rhamdia quelen and Ctenopharyngodon idella with Ocimum micranthum essential oil
Provedor de dados: 65
Autores: Zeppenfeld,Carla Cristina; Brasil,Marisa Teresinha de Bastos; Cavalcante,Gisela; Silva,Lenise Vargas Flôres da; Mourão,Rosa Helena; Cunha,Mauro Alves da; Baldisserotto,Bernardo.
ABSTRACT: Anesthetics are effective to reduce or minimize stress in handling operations related to fish cultures. Aiming to avoid residual effects of synthetic drugs, several natural agents, such as essential oils (EOs), have been tested. The aim of this study was to determine the optimal concentration of the EO of Ocimum micranthum for induction of anesthesia in juveniles of silver catfish (Rhamdia quelen) and grass carp (Ctenopharyngodon idella). Results demonstrated that the most suitable concentration to sedate silver catfish and carp is 25μL/L, while to anesthetize 200μL/L is more suitable for silver catfish and 100μL/L for grass carp, because these concentrations induce deep anesthesia in less than three min and recovery in less than five min....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthesia; Silver catfish; Grass carp; Sedation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100653

Rendimento e viabilidade da extração de hipófise de jundiá (Rhamdia quelen)
Provedor de dados: 65
Autores: Colpo,Carine de Vargas; Cunha,Mauro Alves da; Medeiros,Tanise dos Santos; Baldisserotto,Bernardo.
O extrato hipofisário é provavelmente o indutor hormonal para desova e espermiação mais utilizado em piscicultura. A possibilidade de o produtor ter uma nova fonte de renda motivou a execução deste trabalho. O objetivo foi verificar o rendimento da hipófise no jundiá (Rhamdia quelen), em função do peso, e analisar a viabilidade econômica de sua extração. Exemplares (n=116) com pesos entre 158-1.543g foram abatidos para extração da hipófise. O índice gonadossomático (IGS) também foi calculado para verificar sua relação com o peso da hipófise. A hipófise apresentou relação significativa com o peso dos jundiás, mas não com o IGS. A extração da hipófise é mais uma opção de renda para a cadeia produtiva dessa espécie.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pituitária; Extrato hipofisário; Rendimento econômico em piscicultura.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000500027