A Tribute to Nick Short

It is with extreme sadness that we share the news that one of WikiVet’s founders, Nick Short, has passed away.

Nick was the driving force behind WikiVet and all that it stood for, and it is thanks to his vision, innovative approach and tireless enthusiasm and belief, that WikiVet is available as a free resource to veterinary professionals around the world today. Nick’s dedication and passion for veterinary education were truly inspirational and his very many friends, colleagues and students across the world have lost a true gem. He was an exceptional human being: gentle, good-natured, charming, generous and kind: he has left many legacies which will ensure that he will be remembered for many years.

Our thoughts are with his friends and family at this heartbreaking time. A book of remembrance has been set up for anyone that would like to leave a message of condolence for Nick and his family have asked that anyone who wishes to do so make a donation to BipolarUK, a charity that was close to Nick’s heart.

Difference between revisions of "Trichomonas gallinae"

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==Disease==
 
==Disease==
T gallinae causes '''yellow, necrotic lesions''' and plaques in the gastrointestinal tract of birds, particularly in the [[Crop]] and [[Oesophagus | oesophagus]].
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T gallinae causes '''yellow, necrotic lesions''' and plaques in the gastrointestinal tract of birds, particularly in the [[Crop - Anatomy and Physiology | crop]] and [[Oesophagus | oesophagus]].
  
'''[[Anaemia]]''' is caused when the parasite binds to [[Erythrocytes | erythrocytes]] and induces phagocytosis, causing '''haemolysis'''.  
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'''[[Anaemia]]''' is caused when the parasite binds to [[Erythrocytes | erythrocytes]] and induces phagocytosis, causing '''haemolysis'''.
  
 
==Control==
 
==Control==

Revision as of 11:33, 3 June 2011

Also Known As — Avian TrichomonosisAvian TrichomoniasisTrichomonosisTrichomonosis - Birds

Trichomonas gallinae
Kingdom Protista
Phylum Protozoa
Order Trichomonadida
Family Trichomonadidae
Genus Trichomonas
Species Trichomonas gallinae

Introduction

Trichomonas gallinae is the protozoal pathogen responsible for Avian Trichomonosis.

The parasite is identifiable microscopically by its four anterior flagellae and well developed undulating membrane on one side.

T. gallinae has no posterior flagellum. Its body is divided by an axostyle.

The ellipsoid nucleus of the parasite is usually found in the posterior aspect of the organism.

T. gallinae requires sugars, starch and glycogen from host cells to survive and replicate.

Transmission

Trichomonas gallinae is present worldwide in wild birds particularly the pigeon and other Columbids.

Transmission between pigeons occurs orally during feeding and mating behaviour.

Transmission to domestic chickens and turkeys is achieved through contaminated water troughs that have been visited by wild birds.

Disease

T gallinae causes yellow, necrotic lesions and plaques in the gastrointestinal tract of birds, particularly in the crop and oesophagus.

Anaemia is caused when the parasite binds to erythrocytes and induces phagocytosis, causing haemolysis.

Control

Prevention of disease relies upon prevention of wild birds’ access to domestic birds and their water supplies.

Relevant Links – Avian Trichomonosis, Bovine Trichomonosis

References

Animal Health & Production Compendium, Trichomonas gallinae datasheet, accessed 02/06/2011 @ http://www.cabi.org/ahpc/