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Kanci Condello A, Morrow CJ, Kulappu Arachchige SN, Shil PK, Underwood GJ, Andrews DM, Omotainse OS, Noormohammadi AH, Markham PF, Wawegama NK, Browning GF. Effects of administration of tylosin on the duration of protective immunity induced by the novel Mycoplasma gallisepticum vaccine strain, Vaxsafe MG ts-304, in chickens. Vet Microbiol 2023; 276:109605. [PMID: 36455495 DOI: 10.1016/j.vetmic.2022.109605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/16/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022]
Abstract
Prophylactic use of antimicrobials after administration of live vaccines is a common practice in the poultry industry, but the impact of this on the efficacy and duration of protection induced by the vaccines is unknown. The effect of treatment with tylosin on the efficacy of vaccination with the live attenuated M. gallisepticum strain, Vaxsafe MG ts-304, was examined. This vaccine has previously been shown to provide protection for at least 57 weeks. Ten-week-old specific-pathogen-free chickens were vaccinated with Vaxsafe MG ts-304 and then treated with tylosin at a therapeutic dose in drinking water from 6 weeks after vaccination. Tylosin was withdrawn 5 days before challenge with M. gallisepticum strain Ap3AS at 6, 10, 14, 18 or 22 weeks after vaccination. Air sac lesions, tracheal mucosal thickening and the concentrations of serum antibodies against M. gallisepticum were assessed at 2 weeks after challenge. The protection induced by the vaccine in the 6 weeks before initiation of tylosin treatment persisted for 18 weeks after vaccination, with lesions only observed in the air sacs of vaccinated birds that had been treated with tylosin after challenge at 22 weeks after vaccination. Concentrations of serum antibodies against M. gallisepticum began to decrease in vaccinated birds that had been treated with tylosin from 16 weeks after vaccination. This study has suggested that treatment of chickens with tylosin after vaccination with a live attenuated mycoplasma vaccine reduces the duration of protective immunity afforded by the vaccine.
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Affiliation(s)
- Anna Kanci Condello
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Chris J Morrow
- Bioproperties Proprietary Limited, 36 Charter Street, Ringwood, Victoria 3134, Australia
| | - Sathya N Kulappu Arachchige
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia; Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Pollob K Shil
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria 3030, Australia
| | - Gregory J Underwood
- Bioproperties Proprietary Limited, 36 Charter Street, Ringwood, Victoria 3134, Australia
| | - Daniel M Andrews
- Bioproperties Proprietary Limited, 36 Charter Street, Ringwood, Victoria 3134, Australia
| | - Oluwadamilola S Omotainse
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria 3030, Australia
| | - Amir H Noormohammadi
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria 3030, Australia
| | - Philip F Markham
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Nadeeka K Wawegama
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Glenn F Browning
- Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria 3010, Australia
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Koutsoumanis K, Allende A, Alvarez‐Ordóñez A, Bolton D, Bover‐Cid S, Chemaly M, Davies R, De Cesare A, Herman L, Hilbert F, Lindqvist R, Nauta M, Ru G, Simmons M, Skandamis P, Suffredini E, Andersson DI, Bampidis V, Bengtsson‐Palme J, Bouchard D, Ferran A, Kouba M, López Puente S, López‐Alonso M, Nielsen SS, Pechová A, Petkova M, Girault S, Broglia A, Guerra B, Innocenti ML, Liébana E, López‐Gálvez G, Manini P, Stella P, Peixe L. Maximum levels of cross-contamination for 24 antimicrobial active substances in non-target feed.
Part 6: Macrolides: tilmicosin, tylosin and tylvalosin. EFSA J 2021; 19:e06858. [PMID: 34729086 PMCID: PMC8546505 DOI: 10.2903/j.efsa.2021.6858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The specific concentrations of tilmicosin, tylosin and tylvalosin in non-target feed for food-producing animals, below which there would not be an effect on the emergence of, and/or selection for, resistance in bacteria relevant for human and animal health, as well as the specific antimicrobial concentrations in feed which have an effect in terms of growth promotion/increased yield, were assessed by EFSA in collaboration with EMA. Details of the methodology used for this assessment, associated data gaps and uncertainties, are presented in a separate document. To address antimicrobial resistance, the Feed Antimicrobial Resistance Selection Concentration (FARSC) model developed specifically for the assessment was applied. However, due to the lack of data on the parameters required to calculate the FARSC, it was not possible to conclude the assessment until further experimental data become available. To address growth promotion, data from scientific publications obtained from an extensive literature review were used. Levels in feed that showed to have an effect on growth promotion/increased yield were reported for tilmicosin and tylosin, whilst for tylvalosin no suitable data for the assessment were available. It was recommended to carry out studies to generate the data that are required to fill the gaps which prevented the calculation of the FARSC for these three antimicrobials.
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Poźniak B, Tikhomirov M, Bobrek K, Jajor P, Świtała M. Tylosin Dosage Adjustment Based on Allometric Scaling in Male Turkeys. Antibiotics (Basel) 2021; 10:1057. [PMID: 34572639 PMCID: PMC8467158 DOI: 10.3390/antibiotics10091057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 11/18/2022] Open
Abstract
Turkeys' body weight (BW) increases 10-fold within only 2.5 months, leading to a change in the pharmacokinetics (PK) of drugs according to allometric principles. Thus, the same dosage may lead to age-dependent variability in efficacy, in particular, to treatment failure and/or selection for resistance. The study aimed to investigate whether a non-linear dosage based on a published allometric model for tylosin clearance, may optimize the internal exposure in growing turkeys. The single dose PK study was performed on turkeys aged 6, 9.5, 13 and 17 weeks (BW from 1.75 kg to 15.75 kg). Tylosin was administered intravenously (i.v.) or orally (p.o.) according to following protocols: Dose = 31.6 × BW0.58 or Dose = 158 × BW0.58, respectively. Plasma tylosin was measured using high-performance liquid chromatography and non-compartmental PK analysis was performed. The area under the curve (AUClast) after i.v. administration was 8.90 ± 1.01; 7.51 ± 1.11; 6.54 ± 1.20 and 8.01 ± 1.75 mg × h/L in 6-; 9.5-; 13- and 17-week-old turkeys, respectively. After p.o. administration AUClast was 4.80 ± 2.92; 4.60 ± 2.45; 3.00 ± 1.49 and 3.24 ± 2.00 mg × h/L in respective age groups indicating high variability. For i.v. administration, the non-linear dosage allowed to minimize the age-dependent variability in AUC. However, due to low oral bioavailability (8-12%) and resulting interindividual variability, the proposed approach may not improve tylosin efficacy in turkeys under farm conditions.
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Affiliation(s)
- Błażej Poźniak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (P.J.); (M.Ś.)
| | - Marta Tikhomirov
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (P.J.); (M.Ś.)
| | - Kamila Bobrek
- Department of Epizootiology and Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, pl. Grunwaldzki 45, 50-366 Wrocław, Poland;
| | - Paweł Jajor
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (P.J.); (M.Ś.)
| | - Marcin Świtała
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (P.J.); (M.Ś.)
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Elazab ST, Elshater NS, Hashem YH, Park SC, Hsu WH. Pharmacokinetics, tissue residues, and ex vivo pharmacodynamics of tylosin against Mycoplasma anatis in ducks. J Vet Pharmacol Ther 2019; 43:57-66. [PMID: 31667880 DOI: 10.1111/jvp.12819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/31/2019] [Accepted: 09/18/2019] [Indexed: 01/08/2023]
Abstract
The pharmacokinetics of tylosin were investigated in 3 groups of ducks (n = 6). They received a single dose of tylosin (50 mg/kg) by intravenous (IV), intramuscular (IM), and oral administrations, respectively. Plasma samples were collected at various time points to 24 hr post-administration to evaluate tylosin concentration over time. Additionally, tylosin residues in tissues and its withdrawal time were assessed using 30 ducks which received tylosin orally (50 mg/kg) once daily for 5 consecutive days. After IV administration, the volume of distribution, elimination half-life, area under the plasma concentration-time curve, and the total body clearance were 7.07 ± 1.98 L/kg, 2.04 hr, 19.47 µg hr/ml, and 2.82 L hr-1 kg-1 , respectively. After IM and oral administrations, the maximum plasma concentrations were 3.70 and 2.75 µg/ml achieved at 1 and 2 hr, and the bioavailability was 93.95% and 75.77%, respectively. The calculated withdrawal periods of tylosin were 13, 8, and 5 days for kidney, liver, and muscle, respectively. For the pharmacodynamic profile, the minimum inhibitory concentration for tylosin against M. anatis strain 1,340 was 1 µg/ml. The calculated optimal oral dose of tylosin against M. anatis in ducks based on the ex vivo pharmacokinetic/pharmacodynamic modeling was 61 mg kg-1 day-1 .
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Affiliation(s)
- Sara T Elazab
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, El-Mansoura, Egypt
| | - Nahla S Elshater
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Giza, Egypt
| | - Yousreya H Hashem
- Mycoplasma Research Department, Animal Health Research Institute, Giza, Egypt
| | - Seung-Chun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Walter H Hsu
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, USA
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Elbadawy M, Aboubakr M, Abugomaa A. Pharmacokinetics of Tylvalosin in Broiler Turkeys ( Meleagris Gallopavo) After Single Intravenous and Oral Administration. Front Vet Sci 2019; 6:355. [PMID: 31681811 PMCID: PMC6812644 DOI: 10.3389/fvets.2019.00355] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 09/27/2019] [Indexed: 11/13/2022] Open
Abstract
Pharmacokinetics of tylvalosin (TVN) were determined in eight broiler turkeys following a single intravenous (IV) and peroral (PO) administration of 25 mg/kg b.w using a crossover design with a 3 weeks washout period. Blood samples were taken between 0.083 and 24 h following TVN administration, plasma was separated and assayed for TVN concentrations by HPLC. The non-compartmental analysis was used to analyze plasma concentration-time curves. After IV administration, the pharmacokinetic profile was best described by a two-compartment model. The mean distribution and elimination half-lives were 0.382 and 5.71 h, respectively. The distribution volume at steady state, total body clearance and mean residence time were 8.30 L/kg, 1.17 L/h, and 7.16 h, respectively. After administering orally, the mean absorption half-life and absorption time of TVN was 0.955 and 2.31 h, respectively. The peak plasma concentration was 1.08 μg/mL and achieved at 2.0 h post-administration and the bioavailability was 53.3%. The plasma protein binding percent was 13%. For a successful clinical efficacy of TVN in broiler turkeys, a dosage regimen of 25 mg/kg b.w, given orally each day is recommended to keep efficient plasma levels above the MIC for most susceptible microorganisms.
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Affiliation(s)
- Mohamed Elbadawy
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Egypt
| | - Mohamed Aboubakr
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Egypt
| | - Amira Abugomaa
- Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
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Cornejo J, Pokrant E, Carvallo C, Maddaleno A, San Martín B. Depletion of tylosin residues in feathers, muscle and liver from broiler chickens after completion of antimicrobial therapy. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 35:448-457. [DOI: 10.1080/19440049.2017.1401740] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Javiera Cornejo
- Preventive Medicine Department, Faculty of Veterinary and Animal Sciences, University of Chile, La Pintana Santiago, Chile
| | - Ekaterina Pokrant
- Preventive Medicine Department, Faculty of Veterinary and Animal Sciences, University of Chile, La Pintana Santiago, Chile
| | - Carolina Carvallo
- Preventive Medicine Department, Faculty of Veterinary and Animal Sciences, University of Chile, La Pintana Santiago, Chile
| | - Aldo Maddaleno
- Laboratory of Veterinary Pharmacology, Faculty of Veterinary and Animal Sciences, University of Chile, La Pintana Santiago, Chile
| | - Betty San Martín
- Laboratory of Veterinary Pharmacology, Faculty of Veterinary and Animal Sciences, University of Chile, La Pintana Santiago, Chile
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