News and analysis for the global poultry industry.

WEBINAR: How to choose the right poultry vaccination, health monitoring samples

9/9/20 9:00 am CDT

IDEXX_webinar_logo.jpgRegister to learn why monitoring the health and vaccination status of poultry flocks is of crucial importance in optimizing performance of your flocks.

Prof. Dr. J.J. (Sjaak) De Wit, senior researcher, Royal GD, will share his insights on how to address this issue, including which samples to take and how many samples are recommended to test with confidence.


This webinar will broadcast at 9:00 AM CDT (Chicago) / 3:00 PM BST (London) / 10:00 PM CST (Beijing).



  1. What are the right samples to take?                          
  2. What is the epidemiological unit? 
  3. How many samples are needed for vaccination and health monitoring?


This webinar is sponsored by IDEXX and presented by WATTAgNet and WATT Global Media.



Speaker Info:

Sjaak de Wit.jpg

Prof. Dr. J.J. (Sjaak) De Wit, senior researcher, Royal GD
Prof. Dr. J.J. (Sjaak) De Wit received his Doctor of Veterinary Medicine degree from the Utrecht University in the Netherlands in 1989 and obtained his Ph.D. at the same university in 1997. He has held a permanent position at Royal GD (former GD Animal Health), Deventer, the Netherlands since 1989. He started as poultry veterinarian, and his current position at GD is senior researcher. Since 2019, he has combined the position at GD with the position as Professor Integral Poultry Health at the Veterinary Faculty of the Utrecht University. He has been actively involved in applied research related to the diagnosis and control of poultry diseases, especially viral diseases as IBV, IBDV, NDV and AI. His work involves the quality of the serological tests at GD, including validation, accreditation, ISO 17025 and 17043. He has published more than 70 peer-reviewed papers and has contributed to several books including ‘Poultry Diseases’ and the  OIE Terrestrial Manual. Since 2006, he has been one of the associate editors of Avian Pathology. In 2007, De Wit was one of the founding members of the European College for Poultry Veterinary Science, for which he now serves as Post President. In 2013, he was inducted as an inaugural member of the Hall of Honour of WVPA. He has been co-organizing several international symposia and European COST-Actions. He serves as a member of the COGEM, a scientific advisory board for the Dutch government regarding genetic modification.