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| Registros recuperados: 70 | |
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| Bandeira Junior,Guerino; Souza,Carine de Freitas; Baldissera,Matheus Dellaméa; Descovi,Sharine Nunes; Silveira,Bibiana Petri da; Tasca,Caiane; Mourão,Rosa Helena Veras; Vargas,Agueda Palmira Castagna de; Baldisserotto,Bernardo. |
| ABSTRACT: The use of natural products, such as essential oils (EOs), is a potential novel approach to treat fish bacterial infections with a lower risk of developing resistance. There has been a number of studies reporting the activity of EOs as those obtained from the species Achyrocline satureioides, Aniba parviflora, Aniba rosaeodora, Anthemis nobilis, Conobea scoparioides, Cupressus sempervirens, Illicium verum, Lippia origanoides, and Melaleuca alternifolia against bacteria. However, there are few studies investigating the effect of these EOs against fish bacteria. Therefore, the aim of this study was to evaluate the in vitro antibacterial activity of EOs against the following fish bacteria, Aeromonas hydrophila, Citrobacter freundii, and Raoultella... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aeromonas hydrophila; Antibacterial activity; Silver catfish; Longevity; Therapeutic success. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600451 |
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| 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 |
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| Salbego,Joseânia; Maia,Janna Laely dos Santos; Toni,Cândida; Rodrigues,Amanda Sousa Silva; Sousa,Elen Monique Oliveira; Silva,Lenise Vargas Flores da; Mourão,Rosa Helena Veras; Barata,Lauro Euclides Soares; Heinzmann,Berta Maria; Baldisserotto,Bernardo. |
| ABSTRACT: The goal of this study was to investigate the sedative and anesthetic properties of essential oils (EOs) in map treefrog tadpoles (Hypsiboas geographicus) and to determine the sedation and deep anesthesia induction times as well as the recovery time. The tadpoles were exposed to one of the EOs from three plant species: Aniba rosaeodora (EOAR - 25, 50, 100 or 200µL L-1), Lippia origanoides (EOLO - 13, 25, 50, 100 or 200µL L-1), and Lippia alba (either chemotype citral [EOL-C - 25, 50, 100 or 200µL L-1] or linalool [EOL-L - 50, 75, 100 or 200µL L-1]) (n = 8 per replicate). The tadpoles exposed to 25 and 50µL L-1 EOL-C and EOL-L, respectively, were not anesthetized within 30min (the maximum time of observation), and those exposed to 200µL L-1 EOLO... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Animal welfare; Natural anesthetics. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100403 |
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| Becker,Alexssandro Geferson; Garcia,Luciano de Oliveira; Kochhann,Daiani; Gonçalves,Jamile Fabbrin; Loro,Vania Lúcia; Baldisserotto,Bernardo. |
| Ionic contents (Na+, K+ and Cl-) of plasma and gallbladder bile (GB) of juveniles silver catfish, Rhamdia quelen (156.1±0.2g, 28.2±0.3cm), were determined in three different times (0, 6 and 24h) after exposure to: a) control or high dissolved oxygen (DO = 6.5mg L-1) + low NH3 (0.03mg L-1); b) low DO (3.5mg L-1) + low NH3; c) high DO + high NH3 (0.1mg L-1); and d) low DO + high NH3. High waterborne NH3 or low DO levels increased plasma and GB ion levels. These parameters might have followed different mechanisms to affect osmoregulation since a synergic effect of these variables was detected. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen compound; Hypoxia; Ion levels; Jundiá; Osmoregulation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000600020 |
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| Zaions,Maria Ignez; Baldisserotto,Bernardo. |
| The objective of this study was to investigate the effect of water pH on survival and Na+ and K+ body levels of fingerlings of Rhamdia quelen, a freshwater catfish. Survival was 100% at pH 4.00 to 9.0 throughout the experiment (96h), and death of all fingerlings was observed only at pH 3.75 or lower and at pH 10.50. There was a significant correlation between water pH and body Na+ levels (but not K+ levels) 72h after transfer. There was a clear reduction in Na+ levels when the transfer was to pH outside the 5.0 - 9.0 range, which is in agreement with the fact that fishes exposed to such pHs present loss of ions by diffusion and/or a decrease in absorption. Growth experiments with this species probably would present best results within the 5.0 - 9.0 pH... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhamdia quelen; Fingerlings; PH; Body ion levels; Survival. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000600020 |
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| Gomes,Levy de Carvalho; Golombieski,Jaqueline Ineu; Gomes,Adriana Regina Chippari; Baldisserotto,Bernardo. |
| O jundiá, Rhamdia quelen, é encontrado desde o centro da Argentina até o sul do México, e seu cultivo está aumentando no sul do Brasil. Portanto, o objetivo desta revisão é apresentar os dados existentes até o momento sobre a biologia dessa espécie. R. quelen pode atingir 50cm de comprimento e 3kg de peso, possui hábito noturno e habita locais calmos e profundos dos rios. Os alevinos suportam água do mar a 10%o, até 9,0g/l de sal comum e pH na faixa de 4,0 a 8,5, com melhor crescimento das larvas na faixa de pH de 8,0 a 8,5. É uma espécie euritérmica. Esse peixe é omnívoro, com tendência piscívora. A maturidade sexual é atingida no primeiro ano de vida. É uma espécie ovulípara e, na natureza, os cardumes desovam em locais com água limpa, calma e de fundo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jundiá; Rhamdia quelen; Piscicultura; Reprodução. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000100029 |
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| Hohlenwerger,Janis Cumming; Baldisserotto,Bernardo; Couto,Ricardo David; Heinzmann,Berta Maria; Silva,Daniela Thomas da; Caron,Braulio Otomar; Schmidt,Denise; Copatti,Carlos Eduardo. |
| ABSTRACT: This study aimed to examine the action of the essential oil of Lippia alba (EOLA) in the stress response for transport of Nile tilapia Oreochromis niloticus . The fish were transported into three treatments (in triplicate): control, 10 and 20 µL L-1 EOLA, with loading density of 15 fish/plastic bags for 8h. Plasma glucose levels were significantly decreased in fish exposed to 20µL L-1 EOLA in comparison with the control group and fish exposed to 10µL L-1 EOLA, but the plasma cortisol, lactate and paraoxonase levels were similar. Un-ionized ammonia and ventilatory rate demonstrated a significant reduction in the treatments with the use of EOLA. In conclusion the use of 20µL L-1 EOLA is indicated for Nile tilapia transport. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oreochromis niloticus; Stress; Glucose; Cortisol; Ventilatory rate. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300403 |
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| Becker,Alexssandro Geferson; Gonçalves,Jamile Fabbrin; Garcia,Luciano Oliveira; Behr,Everton Rodolfo; Graça,Dominguita Luhers; Kurtz Filho,Mário; Martins,Tessie; Baldisserotto,Bernardo. |
| The present study compared some morphometric parameters of the digestive tract of four teleosts with different feeding habits: traira (Hoplias malabaricus, carnivore), silver catfish (Rhamdia quelen, omnivore), hassar (Hoplosternum littorale, omnivore), and grass carp (Ctenopharyngodon idella, herbivore). The digestive tract was removed from fish collected from nature and fixed for some morphometric analyses, such as: intestinal quotient, intestinal area quotient, vilosity height, digestive somatic index, and hepatosomatic index. Grass carp showed the highest values of intestinal quotient and height vilosity. On the other hand, the intestinal area quotient was higher in traira than in the other species. The intestinal quotient can be used to estimate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gastrointestinal tract; Intestine; Morphological parameters; Pyloric ceca. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400018 |
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| Registros recuperados: 70 | |
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