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8 Results Found

  • Article
  • Open Access
4 Citations
3,198 Views
9 Pages

A Preliminary Study on the Concentration of Oxytetracycline and 4-Epi-Oxytetracycline in Sow Milk

  • Piotr Cybulski,
  • Anna Gajda,
  • Małgorzata Gbylik-Sikorska and
  • Artur Jabłoński

Even though modern analytical chemistry has developed a methodology enabling evaluation of the presence of OTC in milk, data regarding its concentration in the material collected from lactating sows are missing. Therefore, this paper was intended to...

  • Technical Note
  • Open Access
14 Citations
4,014 Views
5 Pages

Antibiotics have been successfully used for the control of several plant diseases for many years. Recently, streptomycin and oxytetracycline have been approved for the treatment of Huanglongbing (HLB) in Florida. The enzyme-linked immunosorbent assay...

  • Article
  • Open Access
17 Citations
14,223 Views
13 Pages

Evaluation of Antibiotic Dissemination into the Environment and Untreated Animals, by Analysis of Oxytetracycline in Poultry Droppings and Litter

  • Ekaterina Pokrant,
  • Karina Yévenes,
  • Lina Trincado,
  • Gigliola Terraza,
  • Nicolás Galarce,
  • Aldo Maddaleno,
  • Betty San Martín,
  • Lisette Lapierre and
  • Javiera Cornejo

17 March 2021

Oxytetracycline (OTC) is widely used in broiler chickens. During and after treatment a fraction of OTC is excreted in its original form and as its epimer, 4-epi-OTC in droppings. To address the transfer of OTC into the environment, we evaluated the d...

  • Article
  • Open Access
9 Citations
3,481 Views
14 Pages

23 February 2021

Antimicrobial compounds have been successfully used to control many plant and animal diseases. Recently, oxytetracycline (OTC) and streptomycin have been approved for the treatment of Huanglongbing in citrus. Since the application of OTC is under str...

  • Article
  • Open Access
26 Citations
4,841 Views
12 Pages

Detection of Antimicrobial Residues in Poultry Litter: Monitoring a Risk through a Selective and Sensitive HPLC–MS/MS Method

  • Karina Yévenes,
  • Ekaterina Pokrant,
  • Lina Trincado,
  • Lisette Lapierre,
  • Nicolás Galarce,
  • Betty San Martín,
  • Aldo Maddaleno,
  • Héctor Hidalgo and
  • Javiera Cornejo

14 May 2021

Tetracyclines, sulphonamides, and quinolones are families of antimicrobials (AMs) widely used in the poultry industry and can excrete up to 90% of AMs administrated, which accumulate in poultry litter. Worryingly, poultry litter is widely used as an...

  • Article
  • Open Access
3 Citations
3,028 Views
18 Pages

Antimicrobial Residues in Poultry Litter: Assessing the Association of Antimicrobial Persistence with Resistant Escherichia coli Strains

  • Paula Cortés,
  • Ekaterina Pokrant,
  • Karina Yévenes,
  • Aldo Maddaleno,
  • Andrés Flores,
  • María Belén Vargas,
  • Lina Trincado,
  • Matías Maturana,
  • Lisette Lapierre and
  • Javiera Cornejo

Objective: We set out to evaluate the persistence of sulfachloropyridazine, oxytetracycline, and enrofloxacin in broiler chicken litter following therapeutic oral treatment and its association with the isolation of Escherichia coli resistant to these...

  • Article
  • Open Access
15 Citations
4,190 Views
13 Pages

A Suitable HPLC-MS/MS Methodology for the Detection of Oxytetracycline, Enrofloxacin, and Sulfachloropyridazine Residues in Lettuce Plants

  • Karina Yévenes,
  • María José Ibáñez,
  • Ekaterina Pokrant,
  • Andrés Flores,
  • Matías Maturana,
  • Aldo Maddaleno and
  • Javiera Cornejo

2 January 2024

Oxytetracycline (OTC), enrofloxacin (EFX), and sulfachloropyridazine (SCP) are critically important antimicrobials (AMs) in both human and veterinary medicine, where they are widely used in farm animals. Lettuce has become a matrix of choice for stud...

  • Article
  • Open Access
12 Citations
3,040 Views
16 Pages

Despite their great importance for human therapy, quinolones are still used in Chilean salmon farming, with flumequine and oxolinic acid currently approved for use in this industry. The aim of this study was to improve our knowledge of the mechanisms...