Grzegorz Wozniakowski
Msc
Molecular biology of herpesviruses of poultry (Marek's disease). Herpesviruses of falcons and pigeons. Parvoviruses of waterfowl. Avian adenoviruses.
Msc
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Discussion created on December 10, 2019
Dear poultry scientists, I would like to start with the new subject regarding possible vaccination failure in MD prophylaxis. From my actual experience nowadays in spite of frequent use of bivalent vaccines against MD (Rispens+HVT) or (SB1+HVT) the MDV strains with raised virulence are isolated from field cases of the disease. I know in some cases this may be due to the low hygiene conditions in f ...
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Discussion created on July 17, 2018
Infectious laryngotracheitis virus ILTV represents an important problem in production of chickens. The disease causes respiratory symptoms but also affects production of eggs, chicken body weight and finally mortality. As in case of other herpesviruses including Marek’s disease virus one of the most important aspect remains biosecurity. The most popular vaccination is based on attenuated ILT ...
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Participation in Forum on December 22, 2014
Dear Luka my friend, Thank you for your comment. Please contact me in matters we discussed during MD meeting in US. I am still awaiting your response. Best wishes, Greg
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Article published the November 24, 2014
Duck enteritis virus (DEV) is an aetiological agent of duck plague (DP), which represents one of the most acute and lethal diseases of waterfowl (Anseriformes) including geese, ducks and swans [9]. The infection may spread between farmed and free-ranging birds. The estimated number of birds susceptible to DEV infection includes members of over 48 species [3, 9, 13]. The economic impact on waterfow ...
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Article published the November 19, 2014
Marek’s disease virus (MDV; species Gallid herpesvirus 2, genus Mardivirus, family Herpesviridae [5, 21]) is one of the most contagious agents in poultry production. Consequently, Marek’s disease (MD) has a huge economic impact [15, 17, 22, 25]. Recently, increasing incidence of MD caused by virulent MDV strains with increased pathogenicity has been observed [2, 8, 22, 25, 27]. Initial ...
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Article published the November 18, 2014
Introduction Marek’s disease (MD) still represents a serious threat for the commercial production of chickens, turkeys, and Japanese quail. In spite of worldwide vaccination MD presents one of the most economically important threat for poultry producers. The annual loss caused by the disease incidence reaches US$1 billion (12). MD is manifested by T-cell lymphomas causing immunosuppression, ...
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Participation in Forum on December 12, 2013
Dear Dr Kammon, First of all, thank you for this hot topic. As you may observed HVT-based vaccines are currently efficient only for broilers in age up to 6-weeks. However, personally I have observed the symptoms of MD in HVT vaccinated chickens. My recent study on the strains isolated after the indroduction of MD vaccines clearly showed that currently isolated MDV strains are very virulent plus i ...
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Participation in Forum on April 4, 2012
As I remember LAMP tests have been successfully developed for diagnosis of ND, IBD, IB, MD. You can access the publications about them below. So far LAMP has been not developed for TRT. So it is also a new challenge to find a new method. http://vdi.sagepub.com/content/21/6/841.long http://www.sciencedirect.com/science/article/pii/S0890850809000644 http://www.sciencedirect.com/science/article/ ...
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Discussion created on April 4, 2012
Dear friends, Viewing your reports regarding the occurrence of IBD, Mycoplasma, Marek's disease, IBH, ND and other important factors for poultry industry I would like to recommend the new and simple loop-mediated isothermal amplification method for the rapid and simple detection of many poultry pathogens. I successfully applied this tool for diagnosis of Marek's disease and differentiation betwee ...
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Participation in Forum on April 3, 2012
I regret but the technique is quite fresh and we haven't introduced it as routine laboratory procedure. As far as I am concerned I know that Polish company called Novazym offers great LAMP kits ready to use. See here http://www.novazym.ehost.pl/esklep4/isothermal-mastermix-fluorescent-dye-400-reakcji-p-173.html They also design LAMP primers. I think in the nearest future I am going to organize L ...
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Location:Pulawy, Lublin, Poland
Profile: Professional
Professional Title: Msc
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