I n s t i t u t e f o r A n i m a l H e a l t h , C o m p t o n , U K

Cl in ic for Av ian , Rept i le and F ish Medic ine U n i v e r s i t y o f V e t e r i n a r y M e d i c i n e V i e n n a

International Symposium on Protozoal Infections in Poultry

6/7th July 2007

to be held at:

University of Veterinary Medicine Veterinärplatz 1

1210-Vienna, Austria

I n s t i t u t e f o r A n i m a l H e a l t h , C o m p t o n , U K

Cl in ic for Av ian , Rept i le and F ish Medic ine U n i v e r s i t y o f V e t e r i n a r y M e d i c i n e V i e n n a

Friday 6th of July 9.45 Welcome and opening 10.00 – 10.45 L. McDougald

(Department of Poultry Science, University of Georgia, Athens, USA)

Histomonas meleagridis: An overview of old and new research 10.45 – 11.15 G. Lévêque

(Grelier, Saint-Laurent de la Pleine, France)

Outbreaks of Histomonosis in turkey breeders in France in recent years

11.15 – 11.45 Coffee Break 11.30 – 12.00 M. Mielewczik, H. Mehlhorn, E. Grabensteiner and M. Hess

(Department of Zoomorphology, Cell Biology and Parasitology, Heinrich-Heine University Düsseldorf, Germany)

Light and electron microscopic examinations on clonal cultures of Histomonas meleagridis 12.00 – 12.30 M. Mazet, F. Delbac and C. Vivares

(Parasitologie Moléculaire et Cellulaire, Université Blaise Pascal-Clermont, Aubière, France)

Iron-hydrogenase, malic enzyme and a-succinyl coenzyme A synthetase, three proteins localized into hydrogenosomes of the anaerobic protozoan parasite Histomonas

meleagridis 12.30 – 13.00 I. Bilic, M. Leberl, and M. Hess

(Clinic for Avian, Reptile and Fish Medicine, University of Veterinary Medicine, Vienna, Austria) Detection and characterization of potential antigenic proteins of Histomonas meleagridis

13.00 – 14.30 Lunch

I n s t i t u t e f o r A n i m a l H e a l t h , C o m p t o n , U K

Cl in ic for Av ian , Rept i le and F ish Medic ine U n i v e r s i t y o f V e t e r i n a r y M e d i c i n e V i e n n a

14.30 - 15.00 F. Powell, L. Rothwell, M. Clarkson and P. Kaiser

(Institute for Animal Health, Compton, UK) The turkey, compared to the chicken, fails to mount an effective early immune response to

Histomonas meleagridis 15.00 – 15.30 M. Hess, D. Liebhart, E. Grabensteiner and A. Singh

(Clinic for Avian, Reptile and Fish Medicine, University of Veterinary Medicine, Vienna, Austria)

Vaccination strategy to prevent Histomonosis in turkeys

15.30 – 16.00 Coffee Break 16.00 – 16.30 M. DeGussem, G. Huyghebaert and M. Marien

(Alpharma Animal Health, Antwerp, Belgium)

Comparison of impact on zootechnical performance of Histostat® and Natustat® in prevention of Histomoniasis and flagellates in turkeys.

16.30 – 17.00 H. van der Heijden and W. Landman

(Animal Health Service (GD) Deventer, The Netherlands)

In vitro and in vivo activity of herbal products against Histomonas meleagridis 17.00 – 17.30 E. Grabensteiner, D. Liebhart, N. Arshad and M. Hess

(Clinic for Avian, Reptile and Fish Medicine, University of Veterinary Medicine, Vienna, Austria)

In vivo experiments are crucial to validate the effects noticed in vitro of certain plant extracts against Histomonas meleagridis

20.00 Symposium dinner and social event, further details will

be announced at the symposium

I n s t i t u t e f o r A n i m a l H e a l t h , C o m p t o n , U K

Cl in ic for Av ian , Rept i le and F ish Medic ine U n i v e r s i t y o f V e t e r i n a r y M e d i c i n e V i e n n a

Saturday 7th of July 8.30 – 9.00 N.N.

(EU officials asked for)

Current and future regulations of coccidiostats in poultry feed within the EU

9.00 – 9.30 F.M. Tomley and M.W. Shirley

(Institute for Animal Health, Compton, UK)

Biology of Eimeria: a brief review of recent progress 9.30 – 10.00 L. McDougald

(Department of Poultry Science, University of Georgia, Athens, USA)

Coccidiosis vaccines: Regulatory challenges in the USA and Europe

10.00 – 10.30 Coffee Break 10.30 – 11.00 D.P. Blake, M.W. Shirley and A.L. Smith

(Institute for Animal Health, Compton, UK)

Genetic identification of antigens protective against Eimeria maxima using the immune host

11.00 – 11.30 L. Gobbi, S. Fitz-Coy, J.S. Rennie and I. Guillot

(Schering-Plough Animal Health, Milan, Italy)

Eimeria maxima antigenic diversity and practical aspects of coccidiosis vaccine development

11.30 – 12.00 T. Schetters, T. Donkers, H. Janssen, J. Foldi and A. Vermeulen

(Intervet International, Boxmeer, The Netherlands)

Prolonged usage of Nobilis COX ATM drastically reduces oocyst load in broiler flocks 12.00 – 12.30 U. Löhren, B. Meyer-Kuehling and I. Guillot

(PHW Zentrallabor der Fa. Wiesenhof, Rechterfeld, Germany)

Field experience with a coccidiosis vaccine on farms with high coccidiosis challenge

12.30 – 13.30 Lunch

I n s t i t u t e f o r A n i m a l H e a l t h , C o m p t o n , U K

Cl in ic for Av ian , Rept i le and F ish Medic ine U n i v e r s i t y o f V e t e r i n a r y M e d i c i n e V i e n n a

13.30 – 14.00 R.N. Marshall, J.S. Rennie and J.A. Marshall

(Veterinary Laboratories Agency, Addlestone, UK)

Revitalisation of anticoccidial sensitivity in poultry flocks by the use of a live attenuated vaccine

14.00 – 14.30 L. Timbermont, A. Gholamiandehkordi, A. Lanckriet, F. Haesebrouck,

R. Ducatelle and F. van Immerseel (Department of Pathology, Bacteriology and Avian Diseases, Ghent University, Belgium)

A semi-quantitative scoring system for gut lesions in a subclinical necrotic enteritis model

14.30 – 15.00 J.M. Répérant and M. Thomas-Hénaff

(Agence Francaise de Sécurité Sanitaire des Aliments (AFSSA), Ploufragan, France)

Crowding effect concerning Eimeria brunetti and relationship with pathological impact of this coccidium

15.00 – 15.30 I. Takashi and B. Mavbuto

(National Institute of Animal Health, Kannondai, Tsukuba, Iberaki, Japan)

Transmission of chicken malaria, Plasmodium gallinaceum, by Japanese mosquitos

15.30 End of the Symposium