Consulta: subjectFacets:"Oxytetracycline"
Registros recuperados: 5
Data/hora: 01/06/2024 06:41:46

Determining the age of tropical tunas in the Indian Ocean from otolith microstructures
Provedor de dados: 5
Autores: Sardenne, Fany; Dortel, Emmanuelle; Le Croizier, Gael; Million, Julien; Labonne, Maylis; Leroy, Bruno; Bodin, Nathalie; Chassot, Emmanuel.
The Indian Ocean Tuna Tagging Program (IOTTP) provided a unique opportunity to assess the viability of estimating the age of tropical tunas from the micro-structural features of otoliths. Here, we analyzed the length measurements and micro-increment counts collected for 506 sagittal otoliths, of which 343 were chemically marked with oxytetracycline, for bigeye (Thunnus obesus), skipjack (Katsuwonus pelamis), and yellowfin tuna (Thunnus albacares). Our results show that the otoliths of tropical tunas grow more slowly than the rest of the body. Our findings confirm that both yellowfin and juvenile bigeye deposit daily increments in their otoliths, though ages are underestimated for large bigeye (&gt;100 cm) when derived from micro-increment counts. Our...
Tipo: Text
Palavras-chave: Daily age; Micro-increment; Mark-recapture; Oxytetracycline; Thunnus.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00254/36511/35082.pdf

L'élevage larvaire de crevettes en Nouvelle-Calédonie. L'Oxytétracycline et l'association Triméthoprime - Sulfadiazine en tant qu'alternatives à l'emploi de l'Erythromycine en écloserie
Provedor de dados: 5
Autores: Francois, Cyrille.
Aquaculture of penaeid shrimps holds a major place in productions of animals. New Caledonia takes part to these productions by developing the breeding of Pacific blue shrimp Litopenaeus stylirostris. Nowadays, penaeid larviculture can’t be undertaken unless antibiotics are used. Experiments in the Caledonian Aquacultural Laboratory (LAC IFREMER Saint-Vincent) put across to the development of two antibiotic prophylaxis plans for substitution of erythromycine, one plan with oxytetracycline (hydrochloride), the other plan with trimethoprime-sulfadiazine association. After an antimicrobial agent susceptibility testing of bacteria and an acute toxicity study, efficacity assays are the biological validation of these projects of protocols
Tipo: Text
Palavras-chave: Crevette; Ecloserie; Oxytétracycline; Triméthoprime; Sulfadiazine; Shrimp; Hatchery; Oxytetracycline; Trimetroprime; Sulfadiazine.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00072/18312/15877.pdf

Comparative study on the contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis by oxytetracycline and oxolinic acid
Provedor de dados: 5
Autores: Pouliquen, Hervé; Le Bris, Hervé; Buchet, Vincent; Pinault, Louis.
Marine fish farms use many antibacterial agents to prevent or fight bacterial diseases. The major part of the orally supplied drugs reach the environment, either directly due to excessive feeding and reduced appetite of the cultured fish, or indirectly after passing through the fish. Some of the drugs entering the environment may be taken up by bivalves. Comparative contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis were studied when these bivalves were kept during 10 d in seawater containing oxytetracycline (OTC) or oxolinic acid (OA) at concentrations of 0.15 and 1.50 mg l(-1). After the 10 d exposure at the seawater concentrations of 0.15 and 1.50 mg l(-1), OTC and OA concentrations in bivalve tissues...
Tipo: Text
Palavras-chave: Mussel; Oxolinic acid; Oxytetracycline; Oyster.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39359/39437.pdf

Development of Fed-Batch Cultivation Strategy for Efficient Oxytetracycline Production by Streptomyces rimosus at Semi-Industrial Scale
Provedor de dados: 52
Autores: Elsayed,Elsayed Ahmed; Omar,Hoda Gamal; El-Enshasy,Hesham Ali.
ABSTRACTOxytetracycline (OTC) production byStreptomyces rimosus was studied in batch and fed-batch cultures in shake flask and bioreactor levels using semi-defined medium. First, the effect of glucose concentration on OTC production and growth kinetics was studied intensively. The optimal glucose concentration in the medium was 15 g/L. Higher glucose concentrations supported higher biomass production by less volumetric and specific antibiotic production. Based on these data, cultivations were carried out at semi-industrial scale 15 L bioreactor in batch culture. At bioreactor level, cell growth and OTC production were higher compared to the shake flask culture by about 18 and 38%, respectively. During the bioreactor cultivation, glucose was totally...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oxytetracycline; Streptomyces rimosus; Bioreactor; Fed-batch cultivation; Feed-back control.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500676

Survival and behavior of silver catfish, Rhamdia quelen, submitted to antibiotics and sodium chloride treatments
Provedor de dados: 65
Autores: Andrade,Luciana Segura de; Andrade,Rafael Luiz Barboza de; Becker,Alexssandro Geferson; Baldisserotto,Bernardo.
In order to evaluate the use of antibiotics and NaCl on the behavior and survival of silver catfish, Rhamdia quelen, infested by Ichthyophthirius multifiliis and infected with Aeromonas hydrophila, juveniles were treated with chloramphenicol, chloramphenicol + salt, oxytetracycline, oxytetracycline + salt and water alone (control). Fish survival in the treatments with chloramphenicol + salt and oxytetracycline + salt was significantly higher than in the other treatments. The treatment with chloramphenicol presented higher survival than the treatment with oxytetracycline and both showed significantly higher survival than control. Swimming activity was higher in the fish treated with antibiotics and salt compared to control fish. A combination of the studied...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aeromonas hydrophila; Chloramphenicol; Ichthyophthirius multifiliis; Oxytetracycline; Sodium chloride.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000300047