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Racing pigeons : a reservoir for nitro-imidazole-resistant Trichomonas gallinae

Lieze Rouffaer (UGent) , Connie Adriaensen (UGent) , Cindy De Boeck (UGent) , Edwin Claerebout (UGent) and An Martel (UGent)
(2014) JOURNAL OF PARASITOLOGY. 100(3). p.360-363
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Abstract
Trichomonas gallinae, the cause of avian trichomonosis, is most commonly found in the order Columbiformes. Racing pigeons are often treated preventively with nitro-imidazoles which could result in the emergence of resistant isolates, and these isolates can be a treath to wildlife when exchanges occur. The sequence type of 16 T. gallinae isolates obtained from racing pigeons and 15 isolates from wild pigeons was determined based on the ITS1/5.8S rRNA/ITS2 region sequence. In addition, the resistance profiles of these isolates against five different nitro-imidazoles (metronidazole, dimetridazole, ronidazole, tinidazole and carnidazole) were determined. Two different Trichomonas sequence types were isolated. Sequence type A isolates were recovered from racing and wild pigeons, in contrast to sequence type B which was only isolated from wild pigeons. Isolates with sequence type B were all susceptible to the tested nitro-imidazoles, except for tinidazole-resistance in 3 isolates. Resistance to the nitro-imidazoles was observed more frequently in isolates obtained from racing pigeons than from wild pigeons, with most isolates belonging to sequence type A. A higher percentage of the sequence type A isolated from racing pigeons, in comparison with those isolated from the wild pigeons, were resistant to the nitro-imidazoles and displayed higher mean lethal concentration (MLC) values. Two isolates belonging to sequence type A, 1 recovered from a racing pigeon and 1 from a wild pigeon, displayed a similar resistance pattern, suggesting a potential exchange of resistant isolates between racing pigeons and wild pigeons.
Keywords
METRONIDAZOLE, PREVALENCE, TINIDAZOLE, VAGINALIS, DRUGS, pigeons, Trichomonas, resistance

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Chicago
Rouffaer, Lieze, Connie Adriaensen, Cindy De Boeck, Edwin Claerebout, and An Martel. 2014. “Racing Pigeons : a Reservoir for Nitro-imidazole-resistant Trichomonas Gallinae.” Journal of Parasitology 100 (3): 360–363.
APA
Rouffaer, L., Adriaensen, C., De Boeck, C., Claerebout, E., & Martel, A. (2014). Racing pigeons : a reservoir for nitro-imidazole-resistant Trichomonas gallinae. JOURNAL OF PARASITOLOGY, 100(3), 360–363.
Vancouver
1.
Rouffaer L, Adriaensen C, De Boeck C, Claerebout E, Martel A. Racing pigeons : a reservoir for nitro-imidazole-resistant Trichomonas gallinae. JOURNAL OF PARASITOLOGY. 2014;100(3):360–3.
MLA
Rouffaer, Lieze, Connie Adriaensen, Cindy De Boeck, et al. “Racing Pigeons : a Reservoir for Nitro-imidazole-resistant Trichomonas Gallinae.” JOURNAL OF PARASITOLOGY 100.3 (2014): 360–363. Print.
@article{5766738,
  abstract     = {Trichomonas gallinae, the cause of avian trichomonosis, is most commonly found in the order Columbiformes. Racing pigeons are often treated preventively with nitro-imidazoles which could result in the emergence of resistant isolates, and these isolates can be a treath to wildlife when exchanges occur. The sequence type of 16 T. gallinae isolates obtained from racing pigeons and 15 isolates from wild pigeons was determined based on the ITS1/5.8S rRNA/ITS2 region sequence. In addition, the resistance profiles of these isolates against five different nitro-imidazoles (metronidazole, dimetridazole, ronidazole, tinidazole and carnidazole) were determined. Two different Trichomonas sequence types were isolated. Sequence type A isolates were recovered from racing and wild pigeons, in contrast to sequence type B which was only isolated from wild pigeons. Isolates with sequence type B were all susceptible to the tested nitro-imidazoles, except for tinidazole-resistance in 3 isolates. Resistance to the nitro-imidazoles was observed more frequently in isolates obtained from racing pigeons than from wild pigeons, with most isolates belonging to sequence type A. A higher percentage of the sequence type A isolated from racing pigeons, in comparison with those isolated from the wild pigeons, were resistant to the nitro-imidazoles and displayed higher mean lethal concentration (MLC) values. Two isolates belonging to sequence type A, 1 recovered from a racing pigeon and 1 from a wild pigeon, displayed a similar resistance pattern, suggesting a potential exchange of resistant isolates between racing pigeons and wild pigeons.},
  author       = {Rouffaer, Lieze and Adriaensen, Connie and De Boeck, Cindy and Claerebout, Edwin and Martel, An},
  issn         = {0022-3395},
  journal      = {JOURNAL OF PARASITOLOGY},
  language     = {eng},
  number       = {3},
  pages        = {360--363},
  title        = {Racing pigeons : a reservoir for nitro-imidazole-resistant Trichomonas gallinae},
  url          = {http://dx.doi.org/10.1645/13-359.1},
  volume       = {100},
  year         = {2014},
}

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