Issue |
Parasite
Volume 19, Number 3, August 2012
|
|
---|---|---|
Page(s) | 285 - 289 | |
DOI | https://doi.org/10.1051/parasite/2012193285 | |
Published online | 15 August 2012 |
Research note
Establishment of Eimeria tenella (local isolate) in chicken embryos
Mise au point d’un modèle in vitro d’Eimeria tenella (Souche locale) sur embryon de poulet
Key Laboratory for Animal Parasitology, Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 518 Ziyue Road, Minhang District, Shanghai 200241, China
* Correspondence: Bing Huang. Tel.: 86 21 3429 3464 – Fax: 86 21 5408 181. E-mail: hb@shvri.ac.cn
Received:
8
February
2011
Accepted:
4
June
2012
Development of an in vitro Eimeria (E.) tenella model could be valuable as a tool for vaccine, coccidiostats or molecular biology research. 1.0 × 104 sporozoites per 0.1 mL were inoculated into the allantoic cavity of ten-day-old chicken embryos. The complete lifecycle of E. tenella was accomplished in eight-nine days at 37 °C and 70% humidity. The addition of 100 U insulin to the embryos could remarkably improve the output of oocysts. The development of the parasite within the embryos was systematically observed, allowing guidelines to be set regarding the appropriate times at which different developmental stages of the parasite may be sampled.
Résumé
Le développement d’un modèle in vitro d’Eimeria (E.) tenella pourrait être précieux pour la production d’un vaccin, de coccidostats ou la recherche en biologie moléculaire. Dans ce but, un inoculum de 1,0 × 104 sporozoites/0,1 mL a été injecté dans la cavité allantoidienne d’embryons de poulet agés de dix jours. Le cycle complet d’E. tenella était effectué en huit à neuf jours à 37 °C et 70 % d’humidité. L’addition de 100 U d’insuline pouvait augmenter de façon spectaculaire la production des oocystes chez les embryons. Le suivi sytématique du développement du parasite chez les embryons a permis de définir les périodes de prélèvement de ses différents stades.
Key words: Eimeria tenella / chicken / embryo / in vitro cultivation / vaccine
Mots clés : Eimeria tenella / poulet / embryon / culture in vitro / vaccin
© PRINCEPS Editions, Paris, 2012, transferred to Société Française de Parasitologie
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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