Moustafa Elshazly

Thank you our prof Hafez on wonderful and collective presentation I`d like to ask you, Are all IBVs Infection in young age lead to False layer or certain strains?

Thank you for your article and please if you have references show that

Dr. Thierry Van Den Berg I`d like to thank you for your valuable presentation. I wonder if Ig A antibodies is only specific anribody release on muscosal surface? what is about Ig y?

good excellent article, what`s the role of humidity in this formula ? and how to make coordination between Humidity, temperature and air speeds at the same time?

An excellent practical article. I also suggested that in addition to Aflatoxin complicate the clinical picture of cecal coccidiois also delayed the response to treatment in many field observation. I would like to cooperate to perform research on these topic