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September 2022 Newsletter

Volume 58, June2022  Newsletter Editor: Dr G.B. Havenstein,  


wpc2022 postponed



Executive Committee

President's Report

tixier michele1A new board has been elected during the 26th World’s Poultry Congress (WPC2022), after electronic voting was organised, in order to maximise the participation of all branches, even for those who could not be represented in Paris.

As the chair of WPC2022, I became the new President, a woman for the 3rd time in a century. I am proud and happy to be the new President, as well as I am aware of the associated duties and responsibilities.

A new Secretary was elected with Peter Van Horne (NL), starting on January 1, 2023, and three new Vice-Presidents, Michael Grashorn (DE) Fallou Guèye (Djibouti and FAO) and Servet Yalcin (TR), joined Bob Buresh (USA) and Zehava Uni (IL) who were re-elected. The Treasurer, Francine Bradley (USA), was confirmed. The former President, Ning Yang (China), stays on the board, and the chair of the next WPC, Bruce Rathgeber joins the board, to facilitate transitions between Presidents. The President of the European Federation, Estella Prukner-Radovcic, as well as the one of the Asia-Pacific Federation, Sakchai Sriboonsue, stay on the board as well as the Editor of the World’s Poultry Science Journal (WPSJ), Tom Porter. Also, board operations will continue to benefit from the help of the assistant secretary, Dorien Velner. I am grateful to the former members of the board, Roel Mulder, Edir da Silva, Werner Bessei, Yves Nys and Julie Roberts. I must underline that the former board stayed on duty six years, instead of four, because of the postponement and supported the French Branch during that difficult period.

During the next four years, I wish to organise regular exchanges with branches, as we have now learned how to communicate remotely, in-between physical meetings. The board needs to be close to all WPSA members to develop a sense of belonging within our worldwide association. This is a challenge, considering the large diversity of cultures represented in WPSA. Yet, our leitmotiv remains to support research, industry, education and develop synergies between them, to serve our members as well as society as a whole. At the closing ceremony of WPC2022, we could see that many events are already planned in 2023, symposia of European working groups, the Pan-African Poultry Conference, the World Waterfowl Conference…

The new board decided to launch a new communication strategy for WPSA, including social media, and to set up two new committees, one for supporting Federations and Networks and one for updating the Constitution and By-Laws. A special attention will be given to support the new actions of the African Poultry Network and of the Small-Scale Family Poultry Farming working group. In addition, the WPSJ and the resource list for education and training remain on our agenda with a high priority.

We are here to help branches and students in order to build a solid future for WPSA: the Branch Development Programme, the Travel Grant programmes and the Speaker’s Bureau are made for them.

I am looking forward working with the new board and all WPSA members.

Dr Michèle Tixier-Boichard, President

Secretary's Report

mulder roel

WPSA’s most important meeting, the World’s Poultry Congress was held 7-11 August 2022 in Paris, France. Being postponed for two years, a very successful congress was held. Elsewhere in this newsletter an extensive report is presented.

Many meetings and exhibitions were already held this year. Examples are the symposia in Bangladesh, Pakistan, Poland, Saudi Arabia and the United Kingdom, not to forget the Mediterranean Poultry Summit in Cordoba, Spain. Other branches are active again with national programmes.

WPSA was also present (in-person) at exhibitions as VIV Europe, Utrecht, The Netherlands and Victam Asia and Health and Nutrition, Bangkok, Thailand. During this exhibition the Thai branch organized a very successful seminar. In the coming months WPSA will be present at Poultry Africa, Kigali, Rwanda, Eurotier, Hanover, Germany and IPPE, Atlanta, USA.

More news can be found on the WPSA Facebook page and website. A special section is now reserved for webinars from associations and our supporting sponsors and advertisers. New activities for the Calendar can be sent to .

Dr Roel Mulder, General Secretary

Treasurer's Report

bradley francine new

I will start my report with some personal thoughts about our World’s Poultry Congress (WPC) in Paris. Wherever I looked, there were old colleagues and friends spotting each other across lobbies and break areas. Names were shouted with glee, followed by long hugs and handshakes. Everyone one so excited to physically flock together. I think it was even more special for the student attendees. For some, even those several years into their graduate programme, the WPC was their first in-person, international meeting. I will never forget my first WPC - Rio de Janeiro, 1978. For these students, Paris will be a special memory for them.

I want to thank all the Branch Secretaries who made sacrifices to make it to Paris. Special thanks to all of them who were on time and fully participated in the Secretary-only events. For those whose participation was absent or lacking, I know you can do better the next time. As you would expect, I am especially grateful to officers who paid branch dues in Paris!

In the June Newsletter I asked those applying for WPSA support to take care when filling out their applications. I also charged major professors with proofreading those applications. Now that I have spent the last 3 weeks trying to pay-out travel grants and reimburse Branch officers who received travel support, I need to issue another reminder. When Mrs. Dorien Velner sends you a Bank Information form, you need to take the time to clearly, accurately, and completely fill out the form. Failure to do so wastes my time, Mrs. Velner’s time, and delays your payment. The recent offenders include not just students, but faculty members as well - how embarrassing.

While some of my students have accused me of having eyes in the back of my head, I am NOT psychic. I have no idea what address you use for your banking information, nor can I tell by seeing a street address, know that you live in an apartment, but have failed to include your apartment number. Remember that as a poultry science professional it means you should handle not just your experimental work professionally, but also your scientific society paperwork.

I want to send my sincere greetings to those students who not only showed up at the WPSA booth at the appointed time, but those who stopped by again and again. I so appreciated hearing and seeing how you were taking advantage of all the Congress had to offer. One last thought for you: remember to wear your WPSA pins!

Appreciating that I will never know all the time and challenges involved, I want to extend my deep gratitude to the Congress organizers: Michele Tixier-Boichard, Michel Duclos, and Christophe Bostvironnois and all their committee members, support staff, and generous sponsors. Finally, special feathery congratulations to the “brooder house managers” - Yves Nys and Agnes Narcy. Certainly, you both fostered the growth of our youngest WPSA members!

2022 sept FB Talha crop

Caption: Drs. Fareeha Talha and Francine Bradley.
Dr. Talha leads the Women’s Wing of WPSA - Pakistan

Dr Francine Bradley, Treasurer

26th World's Poultry Congress

After two years of postponement because of the sanitary crisis caused by the COVID-19 pandemics, the 26th World’s Poultry Congress successfully took place in Paris, from August 7 to August 11, 2022, thanks to the support of sponsors, the commitment of invited speakers and the dedication of the French branch with the approval of the WPSA board.

Actually, the WPC had started already on September 14, 2021, with monthly webinars presenting a selection of the abstracts submitted in 2019 and accepted in 2020. All registered participants can still view these webinars on the Congress ViewR platform until December 31, 2022 (see

2022 sept WPC opening cropAll friends and colleagues were eager to meet ‘in real’! This was proved at the opening ceremony on August 7, attended by about 1000 participants, following the opening conference organised by ADISSEO on emerging challenges raised by water use. After such serious considerations about this precious resource, the opening ceremony was an opportunity to celebrate awardees of the International Poultry Hall of Fame, the Paul Siegel Scientific Award, the Education Award and the Cliff Carpenter International Assay Competition. We could applaud a range of generations of people interested in poultry. Then participants enjoyed the French CanCan demonstration, if you were not there, you missed something… They could discover a very lively sponsor exhibition, located at the crossroads of posters, coffee and lunch breaks, facing the exit of the Great Amphitheatre and the corridors leading to all meeting rooms.

Did we achieve a truly worldwide event ? Yes: considering all registrations, either individuals or with groups supported by sponsors, more than 1000 originated from Europe, 351 from Asia, 304 from the Americas, 228 from Africa, 164 from the Middle-East/North-African area, and 36 from Oceania). All regions of the world were represented.

Did we gather a significant proportion of WPSA membership ? Not so much: since 67% of participants were non-members, and a large number of these non-members originated from low-income countries, which is very surprising, since the difference in registration fee should have encouraged people to become a WPSA member. This shows that this WPSA event was attractive for the poultry sector, but this questions the motivation for WPSA membership.

Did we attract the young generation ? Yes: 201 students registered, with a majority of them being WPSA members, the young scientist programme gathered 17 participants from 16 countries, the youth programme gathered 38 participants from 19 countries. A social session was organised for both Young Scientists and Youth Programme participants to allow them to get to know each other, during which some members of the board and of the organising committee also introduced themselves. A strong team spirit was built during the tours taking place from August 11 to August 14, which combined the discovery of the French poultry sector with some tourism in the Loire valley region. Participants connected through a WhatsApp group which made possible to share a lot of pictures and friendly messages, even after returning home.

2022 sept WPC YP excursion

2022 sept WPC electronic posterWhat was new in this congress? In 2022, WPC entered the digital era. All plenary sessions and a selection of parallel sessions were live streamed, and all sessions were recorded to remain available from the congress ViewR platform until December 31st. All posters were electronic, and could be accessed on TV screens on site, or on the Viewr platform. At the end of the Congress, it appeared that 2000 participants were present on site, from 85 countries, whereas 500 individual remote connections had taken place, thus proving the feasibility of a ‘hybrid’ congress. Also, the gala dinner was a nice surprise for many participants, with fairground games and a gourmet buffet.

What about science? The programme featured one opening conference on water with 6 speakers, 11 plenary sessions with 12 speakers addressing major trends for the poultry sector and 45 parallel sessions with 38 invited speakers and 179 short oral communications. Speakers originated from 47 countries. In addition, 9 technical symposia were organised by our sponsors during lunch or at the end of the afternoon and were very well attended. Following three calls for submissions, a total of 1225 abstracts were accepted and published in three volumes of proceedings. Comparing the number of submissions made in 2020, 2021 or 2022 showed that the potential for new abstracts ranged between 300 to 400 on a yearly basis. Object-oriented sessions dealt with interactions between nutrition, genetics and epigenetics, with management of broiler breeders or the early management of the embryo, or with new approaches such as robotics. A satisfactory survey is being launched among the congress participants to get their feedback on all sessions as well as on the congress set-up.

The programme also provided the opportunity to revive the African Poultry Network and the Small-Scale Family Poultry Farming working group, which launched a process to establish their strategic agendas.

Let’s meet again in the upcoming WPSA congresses, with the next WPC to be held in Toronto, 2026.

2022 sept WPC student programme crop

Photograph of Student Programme Participants

Michèle Tixier-Boichard
Chair of the organising committee of the 26th WPC

Poultry Educational Resources

In her role as one of the Vice Presidents of the WPSA, Julie Roberts from the Australian Branch has compiled a list of Poultry Educational Resources which are available free of charge via the internet. Some of the web sites listed also have resources for sale. However, the focus of this list is resources which are free and therefore available to all members.

The list is posted on the WPSA website, and will always be a ‘work in progress’ as some resources become available and added, or others, if they are out of date or no longer available, will be removed from the internet list.

If members are aware of other resources that are available that could be added to the list, please contact Mrs Dorien Velner at the main office by email: with the title of the resource, how to access it and a short description.

All entries will be checked on a regular basis to make sure that they continue to be available, however if you find any irregularities, please contact us at


European Federation

The European Federation has numerous conferences planned between now and on into 2023. A list of most of our upcoming conferences may be found on the WPSA Calendar at
News from several European Federation Working Groups are provided below.

WPSA European Working Group News



espnThe next ESPN will take place from 21 to 24 June, 2023 in Rimini, Italy. The Italian Branch would like to thank again VET International and Palacongressi of Rimini for their cooperation and understanding during this time. The city of Rimini, is an ideal place for the European Symposium on Poultry Nutrition and the modern as well as eco-friendly Venue is the perfect stage for the event. Many attendees including both poultry research scientists and practitioners, leading speakers from across the world joining together to explore the past, share the present and helping to forge the future of poultry meat science.


Breeding and Genetics

The European Symposium on Poultry Genetics has been postponed to 8-10 November 2023. It will take place at the Maritim Airport Hotel in Hannover.


Poultry Meat Quality

2023 Eggmeat logo EMQ 2023

During the WG5 member meeting held during World's Poultry Congress 2022 in Paris, it was discussed about the organization of the next ‘XXV European Symposium on the Quality of Poultry Meat‘ which will be conjointly held with the ‘XIX European Symposium on the Quality of Eggs and Egg Products’. The Eggmeat Symposium will be organized by Polish Branch (Dr. Paweł Konieczka - Chairman of the Scientific Committee) and it will be held September 7 to 9, 2023 in Kraków. This event will provide a unique opportunity for scientific community, practice sector, and for all associated with the poultry sector to exchange recent advances, hot topics and upcoming challenges in the fields of the quality aspects of poultry meat, eggs and their products. Location of the Symposium in Kraków, which is one of the most recognized cities of Poland, shall provide excellent opportunities not only for gathering and exchange of knowledge but also for social conversations while exploring this magical city. Reduced registration fees are available for WPSA members and students. The preliminary version of the programme which will be shortly available.

Massimiliano Petracci, Secretary Italian Branch of WPSA



The WG6 will have an IFRG meeting on October 13 and 14th at Hilton Garden Inn Leiden, Leiden, The Netherlands. The programme for the meeting is published on the website:



The WG10 (Turkeys) is planning the next meeting in 2023. Dates and venue are to be determined.

World's Poultry Science Journal

Upcoming articles

Articles in upcoming Journal(s)

  • T. Landim de Barros - Uncontroversial facts and new perspectives on poultry histomonosis: a review
  • S. Shourong - Effects of heat stress on the intestinal microorganisms in poultry and its nutritional regulations: a review
  • X. Wang - Advances in epigenetic mechanisms of chick embryo heat acclimation
  • T. Ebeid - Recent advances in the role of feed restriction in poultry productivity: part I - performance, gut development, microbiota, and immune response
  • T. Ebeid - Recent advances in the role of feed restriction in poultry productivity: part II - carcass characteristics, meat quality, muscle fibre properties, and breast meat myopathies
  • P. Pires - Hundred years of knowledge on table egg refrigeration
  • A.L. Nidamanuri - Role of leptin and ghrelin in regulation of physiological functions of chicken
  • V. dos Santos - Garlic as active principle of sanitiser for hatching eggs
  • V. dos Santos - Essential oils and propolis as additives in egg coatings
  • S. Elnesr - The use of some herbal plants as effective alternatives to antibiotic growth enhancers in poultry nutrition
  • M. Alagawany - Use of yeast and its derived products in layer nutrition and subsequent health effects: an updated review



Uncontroversial facts and new perspectives on poultry histomonosis: A review


Since therapeutic and prophylactic compounds became unavailable in many countries, outbreaks of histomonosis in turkeys and chickens have been increasing. Turkeys are particularly susceptible to the disease, whereas chickens generally survive and become carriers of Histomonas meleagridis. Although the disease has been studied since the beginning of the last century, some epidemiological aspects remain unanswered. The caecal worm Heterakis gallinarum is the intermediate host, but mechanical vectors seem to play an important role in the survival, transport, and introduction of the protozoa in turkey facilities. In turkeys, the disease can be transmitted by direct contact, referred to as horizontal or lateral transmission. Replication of horizontal transmission in experimental conditions has not been consistent in the last years and factors influencing the transmission are not fully understood. The presence of bacteria is necessary for the protozoa to cause disease and be cultivated in vitro; however, the influence of bacteria, in the ceca and the litter, in the pathogenicity and transmission of histomonosis remains elusive. Histomonas meleagridis has tropism for the ceca and the liver. The cecum has a dynamic environment, presenting a large bacterial population, influencing the host’s homeostasis in several ways. Genetic variability of isolates of H. meleagridis has been reported, but the impact of this genetic variability on the transmission of the protozoa has not been studied. Considering this complex host-protozoa-bacteria interaction, the present literature review focuses on factors that could impact the outcome of histomonosis infection and transmission.

Effects of heat stress on the intestinal microorganisms in poultry and its nutritional regulations: a review


The gastrointestinal tract of poultry harbors several intestinal microorganisms played a major role in their growth and development. Heat stress is one of the major challenges of breeding poultry, as it reduces the production performance, decreases the feed intake and the feed conversion rate, increases the mortality rate, and reduces the diversity of intestinal microorganisms. However, our understanding of the relationship between the intestinal microbial ecosystem of poultry and heat stress is limited. In this paper, it summarized the current understanding of the composition and function of intestinal microorganisms, the effect of heat stress on intestinal microorganisms, and the ability of different anti-heat stress additives to alleviate the effects of heat stress on the intestinal microorganisms in poultry.

Advances in epigenetic mechanisms of chick embryo heat acclimation


The environment is closely related to the healthy rearing of animals. As an environmental stressor, heat stress has been paid close attention by practitioners. High temperature environment in summer will cause serious damage to poultry health and economic loss. As global temperatures rise, there is an urgent need for ways to mitigate heat stress damage in poultry. Studies have found that heat acclimation techniques can help poultry improve their resistance to high temperatures. Epigenetics is a subject closely related to the environment. Epigenetic changes of related genes may play an important role in the establishment of heat acclimation. In this paper, we summarize the existing reports on heat acclimation techniques and try to explore them from the perspective of epigenetics.

Recent advances in the role of feed restriction in poultry productivity: part I- performance, gut development, microbiota, and immune response


Feed restriction (FR) strategies are classified into quantitative FR (quantity-limited of feed or time-limited access to the feeder) and qualitative FR (reduction of nutrients density particularly protein, amino acids, and energy or diet dilution using fibres' sources). Application of early FR (during the 2nd wk of age) might be involved in stimulating the compensatory growth, enhancing feed efficiency, and reducing mortality rate. The FR may induce the digestive-physiological adaptations in form of increasing the weight of crop, proventriculus, gizzard, duodenum, and caecum and length of duodenum and pancreas. Also, FR had no negative impacts on intestinal histomorphological characteristics (e.g., villus height, crypt depth, and villus: crypt ratio). Furthermore, FR strategies are involved in establishing the intestinal microbial balance and supporting the host immune response. Additionally, FR have several impacts on physiological status and blood biochemical constituents. The purpose of this review is to shed light on the recent results regarding the benefits of FR on growth performance, gut development, intestinal histomorphology, gut microbiome, and immune responses in poultry.

Recent advances in the role of feed restriction in poultry productivity: part II- carcass characteristics, meat quality, muscle fibre properties, and breast meat myopathies


Feed restriction (FR) strategies are classified into quantitative FR (quantity-limited of feed or time-limited access to the feeder) and qualitative FR (reduction of nutrients density in particularly protein, amino acids, and energy or diet dilution using fibres' sources). Application of early FR (during the 2nd wk of age) might be involved in decreasing carcass fat content and modifying carcass composition depending on FR severity, FR duration, strain, gender, and feed distribution during the rearing period. The FR might be involved in modifying meat chemical composition and meat quality characteristics by controlling the morphological and biochemical properties of muscle fibres. Post-hatch FR plays a vital role in determining satellite cell activity and consequently muscle growth and development as well as the intermuscular fat deposition, which in turn is associated with fat/lean ratio in breast meat. Interestingly, FR is a successful and safe tool to minimize the occurrence and severity of myopathies in breast muscle. The purpose of this review is to present the recent knowledge concerning the benefits of FR on carcass characteristics, meat quality traits, muscle fibres' properties, muscle growth and development, and occurrence and severity of myopathies in poultry.

Hundred years of knowledge on table egg refrigeration


Eggs are consumed globally and constitute a significant part of the human diet due to their affordable price and nutritional value. Over the last decades, important changes have occurred in the egg industry, and several studies were conducted to ensure quality during storage. Refrigeration is a tool that helps maintain the egg quality for longer periods of time. The expected contribution of the study is to have a full view of the use of refrigeration in eggs in the past of hundred years. The related studies with different temperatures of egg storage in Scopus, Web of Science, and PubMed (from 1908 to 2021) were identified. Out of 9499 explored references in the identification stage, 34 references were included in this study. Studies on egg storage in different temperatures from different origins were summarized in this study. Scientific evidence demonstrates the positive effects of refrigeration on the internal quality of eggs during egg storage. Asia presented the largest number of studies on the subject among the continents. The Haugh unit was the most used egg quality response to assess egg freshness. Based on a systematic review, conclusions and recommendations were made on the future use of refrigeration.

Role of leptin and ghrelin in regulation of physiological functions of chicken


 Leptin and ghrelin have been recognized to have a major influence on energy balance. Leptin is majorly secreted from brain tissues and ghrelin from proventriculus in chicken. Both are mediators of long‐term regulation of energy balance and suppression of food intake. Both the hormones are having effect on reproduction and immunity. The manner in which both leptin and ghrelin systems in chicken contribute to the regulation of different physiological functions is still evolving. The hormones detected in embryo indicate their action in growth and development. This review provides recent information on the leptin and ghrelin hormones, their role in feed intake, body weight, reproduction and their mechanism of action in chickens.

Garlic as active principle of sanitiser for hatching eggs


Scientific advances are one of the reasons why natural sanitisers are sought after for use in poultry farming, of which garlic-based sanitiser is one. Therefore, this work provides a brief review of garlic’s potential for sanitising hatching eggs. There are no reports of negative effects of garlic on the microbiological quality of the eggshell nor the main incubation evaluation parameter (hatchability). On the contrary, garlic in low concentrations has improved the number of chicks produced (higher hatchability), through reducing eggshell contamination. More studies are needed to support the complete effectiveness, optimise and further encourage the application of this compound in poultry farming.

Essential oils and propolis as additives in egg coatings


The development, search for, and use of increasingly complete coatings with minimal structural and functional deficiencies are currently being investigated for use on eggs for consumption. Coatings with essential oils or propolis have been studied by academia and industry to achieve extended egg quality. These safe, natural compounds have a versatile chemical composition that gives them characteristics and functionalities that make them available for participation in various formulations in the food industry. Considering the importance of minimising food waste, economic losses, and unsafe food and maximising food preservation, using practical, known and commercially available products that do not induce severe harm to human health or the environment, we review the effects of biopolymers incorporated with essential oils or propolis on the quality of table eggs. These coatings can be produced by mixing biopolymers, propolis extract or essential oils, acetic acid, plasticisers, and emulsifiers, among other components. Studies indicate that coatings with essential oils or propolis preserve the quality of albumen and egg yolk stored for several weeks at temperatures of 20ºC or higher and guarantee their internal and external microbiological quality. In addition, essential oils and propolis have no harmful effects on eggshells. Future research needs to deepen the evaluations of coatings with these products, including assessing the complete sensory quality of the eggs, as available reports do not sufficiently address sensory factors.

The use of some herbal plants as effective alternatives to antibiotic growth enhancers in poultry nutrition


Medicine derived from plant sources are called phytobiotics or botanical medicine. For therapeutic purposes different parts (flowers, fruits, roots, leaves, seeds, bark and berries) or whole plants are utilized. Phytobiotic feed additives can be defined as plants/herbs derived products added to the feed in order to improve the performance of animals. The improvement of performance of broiler and layer chickens as well as their product’s quality may be due to multi-directional effects by phytobiotics like decreasing gastrointestinal tract (GIT) microbial population by direct antimicrobial effects or indirectly through increasing mucous secretion in the gut and inhibiting bacterial adhesion to cell membranes, modification of GIT bacterial population through the competitive exclusion of certain type of population and making environment favourable for others, stimulation of digestive secretions and improvement of nutrient absorption, antioxidant, anti-inflammatory and immunomodulatory effects. This review highlights the description of some selected herbs and the potential application and health benefits of phytobiotics and their derived products in poultry nutrition.

Use of yeast and its derived products in layer nutrition and subsequent health effects: an updated review


Antibiotics have been widely used in the poultry sector to improve production performance, but this has resulted in consumer health concerns. Growing demand for organic products has prompted scientists to develop new methods and materials in the poultry industry. These include the use of medicinal plants or beneficial microorganisms. If properly and legitimately selected and exploited, the future for probiotics and prebiotics appears to be very strong for the poultry industry. Organic or natural feed additives are found to be more effective than many of the antibiotic growth promoters in reducing the load of harmful gastrointestinal pathogens. The use of probiotics in a daily supplementation regimen has become a popular routine method in the commercial poultry industry. One of the most important microorganisms used since ancient times are yeast and its derivatives. Yeasts play a key role in many complex ecosystems and engage in parasitic, symbiotic, and antagonistic relationships with other microbes. Yeast contains biologically essential proteins, vitamin B-complex, mannan oligosaccharide, B-D-Glucan, vital trace minerals, carotenoids, and numerous unexplained growth-promoting substances. The combination of these nutritional metabolites increases poultry health by balancing the immune system while boosting gut health and nutrient digestibility. Due to prohibitions on the use of antimicrobial growth promoters in many countries, these yeast-based products are replacing additives in chicken feed since they have certain health and nutritional benefits. In several studies, incorporating yeast into diets improved nutrient utilization and boosted egg weight and egg production in layer chickens. In this review, we will discuss the uses of yeast in laying hen nutrition as an alternative way for organic poultry production instead of traditional growth promoters.


New Publication 

Optimising Poultry Flock Health

Year of publication: 2022
414 Pages
ISBN-13: 9781786768872
Editor: Dr Sjaak de Wit

Diseases remain a significant burden to poultry production and its future, with outbreaks of disease resulting in catastrophic financial losses to the sector. Whilst it is widely recognised that vaccines have a major role in inducing protection, they can only be considered as part of the solution to this rapidly growing problem.

Optimising poultry flock health instead reviews ways of optimising preventative measures to reduce the risk of disease in flocks. The book reviews the wealth of recent research on the mechanisms of transmission for infectious diseases and how this understanding can be used to improve poultry flock health.

By showing how poultry flock health can be optimised at different stages of production, the book showcases the extent of preventative measures available to farmers and producers, as well as how these measures can be implemented effectively to protect their flocks against disease.


Branch News


From 14-15 March 2023 the Bangladesh Branch will organize the 12th International Technical Seminar 2023 in the Dhaka Regency Hotel & Resorts, Dhaka, Bangladesh.
For more information visit the website:

This Technical Seminar will be followed on 16-18 March 2023 by the 12th International Poultry Show 2023 held at the International Convention City Bashundhara (ICCB), Dhaka, Bangladesh.
For more information please contact Md. Mahabub Hassan, General Secretary, WPSA-BB, e- mail: or , website
Mr Zahidul Islam, Convener, Venue Management (Exhibition), e-mail: .


‘FACTA Symposium on Salmonella’ will provide analyses on new and different focus issues for aviculture

FACTA will organise, both in person and online, the “FACTA Symposium on Salmonella” on 18-19 October 2022. Salmonella is a great public health issue. And when it comes to global market matters, Brazil is the biggest exporter of poultry products worldwide. Quality, efficiency and microbiological quality are always under scrutiny.

All precautions surrounding Salmonella are of great importance for the country's poultry production.
Veterinarian and member of the FACTA technical body Letícia Dal’Berto, commented that the goal of the event is providing information beyond that which if regularly presented about Salmonella.

‘North-eastern Symposium on Production, Processing and Sales of Eggs’ will be held 23-24 November, in Recife

Aware of the current scenario and true to its mission of supporting and sharing new knowledge and technologies applicable to the sustainable development of aviculture, FACTA will promote the North-eastern Symposium on Production, Processing and Sales of Eggs from 23-24 November 2022, in Recife (PE).

FACTA organized the ‘Symposium on the use of performance-enhancing antimicrobials’ during the SIAVS

This symposium, hosted during the SIAVS (Salão Internacional de Avicultura e Suinocultura - International Poultry and Pork Show) brought together a range of industry and academic representatives to foster a broad debate about the various themes involved in the animal production process without the use of performance-enhancing antimicrobials.

FACTA WSPA-Brazil 2022 Conference connects aviculture to a more sustainable future

The theme of the FACTA WSPA-Brazil 2022 Conference was ‘Aviculture, the future is now!’ and it approached the main technical aspects of poultry and egg production and environmental, social, and corporate governance that are shaping the reality of the aviculture sector. Themes like sustainability, people management to improve bird performance, cost optimization and its impact were part of the programme of the event.

Symposium discussed Avian Influenza and Newcastle Disease risks

On 12 April, FACTA organized an online workshop to discuss Avian Influenza and Newcastle Disease. This symposium included a refresher on all aspects of the pathology of these diseases coupled with a discussion on current issues and prevention efforts.

FACTA promoted the ‘Refresher Symposium in Aviculture’

FACTA kicked-off its event calendar in March with the online ‘Refresher Symposium in Aviculture’, that was divided in four modules: Egg Incubation, Broiler Breeders, Broilers, and Slaughter – Processing.

The goal was offering professionals, researchers, specialists, and students working in Brazilian and Latin American aviculture a broad technical and operational refresher course on the aviculture production system. This is in line with FACTA’s mission of supporting and spreading new knowledge and technologies applied to the sustainable development of the poultry sector.

Carla Palermo - FACTA WPSA Brazil (), Event & Communications


Toronto World Poultry Congress Logo FINALWPSA Canada is excited to partner with the American and Mexican branches of WPSA to host the 2026 WPC. We look forward to seeing you all in Toronto.

Three student members of the WPSA Canada received scholarships to travel to Paris and present their work at the WPC in August. The support for this was through donations from Aviagen and the Chicken Farmers of New Brunswick.

The students are:

2022 sept canada 1 crop    

Aizwarya Thanabalan - University of Guelph

Oral presentation - Omega-3 Fatty Acids Sources Fed to Broiler Breeders and Progeny: Impact on Intestinal Lesion Scores and Lymphoid Organ Weight in Progeny Challenged with Eimeria. Authors – A. Thanabalan, K. Price, E. G. Kiarie

Poster presentation - Influence of dietary omega-3 fatty acids on bone quality in egg- and meat-type poultry: a meta-analysis. Authors – A. Thanabalan, J. Ellis, E. G. Kiarie

2022 sept canada 2    

Bruna Maria Remonato Franco - University of Saskatchewan

Oral presentation – The Effect of Light Wavelength Treatments on Broiler Behavior. Authors – B.M.R. Franco, T. Shynkaruk, T. Crowe, B. Fancher, N. French, S. Gillingham and K. Schwean-Lardner.

2022 sept canada 3    

Jo Ann Chew - University of Alberta

Oral presentation – The Impact of Light Intensity on Keel Bone Quality and Tibia Bone Strength of Pullets Housed in Perchery Systems from 0 to 16 Weeks of Age. Authors – J. Chew, T. Shynkaruk, E. Herwig, T. Widowski and K. Schwean-Lardner.

  Deborah Adewole, Branch secretary

DR Congo

The WPSA DR Congo Branch held its first official reopening meeting the Branch on 12 July 2022. During this event, we introduced the members and Branch and the Executive Committee led by President Prof Dr Augustin Yamfu Mukau.

On the same occasion, our activity plan was presented focusing on the promotion of the poultry sector in the DR Congo. We will support his mission with a workshop in October 2022 promoting national poultry entrepreneurship.

The WPSA RD Congo Branch was honoured by the presence of the Representative of the Ministry in charge of agriculture, fishing and livestock.

Prof Dr Augustin Yamfu Mukau, Branch President


The 26th WPC from the inside: 2010 to 2022

In complement to the report by Dr Michèle Tixier-Boichard, now president of WPSA, this text makes a short history of the preparation of the 26th WPC, from the inside of the organising committee.

The project arose in 2010, when the French Branch of WPSA and its president Pierre-André Geraert made a bid to organise the 26th WPC in Paris, 2020, with Michèle Tixier-Boichard as chair of the organising committee. The project was then continued by the next president of the WPSA France, Christophe Bostvironnois, and involved several generations of its administrators and staffs of the PCO Colloquium, contributing to the preparation of the event, elaborating on the scientific, technical and social programmes.

In 2018, an international scientific committee gathering the leaders of WPSA working groups and networks, plus a panel of renowned scientists, was constituted and invited to meet in Dubrovnik during EPC. Their work permitted to propose a preliminary programme, invite the speakers to plenary and parallel sessions, and issue a call for abstracts in 2019. With the help of a large panel of evaluators, a first selection of abstracts, was made early 2020 and an almost final programme was ready when the COVID’s pandemic started, leading to a strong confinement in France and many other countries.

As everyone knows, the 26th WPC had to be postponed twice to 2021 and finally to 2022. The whole process was therefore repeated three times before the final event. Meanwhile, to face this unprecedented situation, the organising committee proposed to turn to online events. The first one occurred 10 August 2021, celebrating the 100 years of WPC and was followed by a series of webinars from September 2021 until May 2022 to valorise the abstracts submitted to the first call as oral communications or posters, still available online.

Despite sanitary and political uncertainties, WPC2022 was confirmed and finally took place in Paris, 7-11 August 2022, and WPSA France was proud and happy to welcome about 2000 people on-site. In complement, a live programme was offered to distant participants, and all sessions were recorded remaining available on-line until 31 December 2022, a nice opportunity for all to watch the replays.

After this long and difficult way, the 26thWPC was finally a success, appreciated by all participants, and will remain in everyone’s mind for the years to come. The organisers are grateful to the individual and collective contributions which made it possible., to the unfailing support of the sponsors, the poultry science community and the WPSA board. The French branch is particularly grateful to its members for their trust and support and for the personal involvement of many of them.

WPSA Thursday, 17 November 2022

Life continues: the French Branch of WPSA announces its next event ‘WPSA Thursday’ on 17 November 2022 (in French, in-person). The general theme will concern the avian microbiota and the location and programme will be communicated shortly on

Michel Duclos, secretary and Christophe Bostvironnois, president WPSA France


The Italian Branch of WPSA is organizing the 23rd European Symposium on Poultry Nutrition (ESPN) on 21-24 June 2023. The city of Rimini is an ideal place for the European Symposium on Poultry Nutrition providing both a modern and eco-friendly venue. Many attendees including both poultry research scientists and practitioners, leading speakers from across the world will join together to explore the past, share the present and helping to forge the future of poultry meat science. More details are already available at the Symposia website:

2023 espn logo 

Massimiliano Petracci, Secretary, Italian Branch of WPSA


The 2022 Autumn Meeting of Japan Poultry Science Association (JPSA) will be held online style (zoom meeting) hosted by Tokyo University of Agriculture on 17 September. The meeting contains original research presentations (30 presentations) and a general meeting. In addition, a seminar and a special lecture will be held during the Autumn Meeting. All activities will be on a live stream. The programme of the meeting is now available on More details about the meeting are available on JPSA is welcoming a wide global participation

The Young Members' Executive Committee of JPSA will hold the seminar entitled ‘Patent Strategies for Poultry Researchers - Academia and Corporate Perspectives’. In this seminar, Prof. Hideo Nagai, Patent Attorney at Office of Academic and Social Cooperation at Hiroshima University, will give a lecturer about comparison on trends and strategies for patent applications in the poultry sector between academia and industry.

The special lecture entitled ‘Challenges and Issues in the Poultry Industry’ will be held from afterward. Dr. Atsushi Tajima, former President of JPSA, will talk about the challenges and issues to be resolved for the further development of the poultry industry in Japan.

Naoki Goto, Branch Secretary


The Macedonia branch of WPSA organized an annual meeting on 27 May 2022 in collaboration with Ss. Cyril and Methodius University in Skopje, Faculty of Veterinary Medicine – Skopje and the WVPA Macedonia branch.

The meeting consisted of two parts. The first part was the dissemination of results from project activities related to poultry health and production conducted at the Faculty of Veterinary Medicine – Skopje. The results from two projects were presented ‘Monitoring, morphological and molecular identification, and phylogenetic characterization of the poultry red mite in the Republic of Macedonia’ and ‘Surveillance and Molecular Epidemiology of Avian Paramyxoviruses and Avian Influenza Viruses in China and Macedonia’. These were presented by Associate Professors Miroslav Kjosevski and Aleksandar Dodovski. An additional online presentation was made by Associate Professor Danijela Horvatek Tomic from the Veterinary Faculty in Zagreb on the ‘Current Situation of Poultry Production in Croatia’.

The second part of the meeting was the WPSA Assembly meeting. At the meeting, members of Executive and Supervisory Boards were elected and a decision was made supporting the organization of a meeting in the autumn to commemorate World Egg Day.

Being a young addition to the WPSA global family and situated in South-Eastern Europe, the Macedonian branch applied for membership in the Mediterranean Poultry Network at the 7th Mediterranean Poultry Summit held in Cordoba, Spain. It is expected that the official ceremony of granting a membership will happen at the next Mediterranean Poultry Summit.

Prof. d-r Aleksandar Dodovski, Branch President


The Polish Branch of WPSA is organizing joint WG Meetings in 2023.

On behalf of the Organizing Committee, it is a great pleasure to invite you to the XIX European Symposium on the Quality of Eggs and Egg Products and the XXV European Symposium on the Quality of Poultry Meat.

These Symposia are organized every two years jointly by the Working Groups 4 and 5 of the European Federation of WPSA, and will be held 7-9 September 2023 in Kraków, Poland.

These events provide a unique opportunity for scientific community, practice sector, and for all associated with the poultry sector to exchange recent advances, hot topics and upcoming challenges in the fields of the quality aspects of poultry meat, eggs and their products.

Location of the Symposium in Kraków, one of the most recognized cities of Poland, shall provide excellent opportunities not only for gathering and exchange knowledge but also for social conversations as you explore this magical city.

Looking forward to welcoming you to Kraków, Poland in September 2023.

Conference link

From 18-20 September 2023 the Polish Branch will organize a combined Symposium of Working Group 6 (Reproduction) and Working Group 12 (Physiology) in conjunction with the XXXIII International Poultry Science Symposium of Polish Branch WPSA ‘Science to Practice – Practice to Science’ which will be held from 20-22 September 2023, Wroclaw, Poland.

Marcin Lis, Branch Secretary

South Africa

A number of members of the South African branch presented at or attended the WPC in Paris in August. Prof Rob Gous was officially inducted into the International Poultry Hall of Fame and the branch had a booth to promote our bid to host WPC 2026. Unfortunately, we didn’t win the bid, but look forward to going to Toronto and extend our congratulations to them.

The local committee is organising a 1 ½ day conference to be held in conjunction with the local Feed Manufacturer’s Association (AFMA) on 7-8 March 2023 in Pretoria. We will have a poster section for students to submit their research and we hope to have a youth programme too. Details can be found on our website

2022 sept south africa 1          2022 sept south africa 2 

Nicola Tyler, Branch Secretary


Branch President Prof. Dr. Rüveyde Akbay attended the 26th World’s Poultry Congress in Paris between 7-11 August 2022 and witnessed the handover from the outgoing to the incoming officers for the next term.

Previously we had agreed to initiate relations with an African country. Prof Dr. Augustin Yamfu Mukau from the WPSA DR Congo branch initiated the creation of a university, called Yamfu International Solidarity University for Local Development, "Soyadel International University". This university is made up of several institutions, as a component of the university. We, as the WPSA Turkish Branch, have decided to explore and develop cooperation with this worthwhile venture.

The WPSA Turkish Branch has also decided to organise a national poultry congress with international participation in 2023 with the cooperation of one of our universities.

Prof. Dr. Kâzım Şahin
Secretary of the WPSA Turkish Branch

United Kingdom

Antibiotic-free poultry production addressed in U.K. Branch symposium

Following shortly after the World Poultry Congress in Paris, the United Kingdom (U.K.) Branch of the WPSA held the 33rd event in the Poultry Science Symposium (PSS) series.

Originally planned to take place in 2020, the three-day conference was held in late August 2022 in the beautiful and historic university city of Cambridge.

For this PSS, the overarching theme was antibiotic-free poultry production from various perspectives, and what we can do as poultry professionals to maintain the gut and general health of birds.

Under the banner of ‘Pre- and probiotics: nutritional, veterinary and production perspectives’, there was plenty to cover over the three-day event in the fine setting of the university’s Clare College.

More than 80 delegates from the U.K. and across the world, including three student bursary awardees, enjoyed 14 excellent presentations from some of the leading experts in their respective fields. The depth and breadth of knowledge in the symposium made for some lively and engaging discussions, both in the conference hall and during the breaks. Topics covered began with perspectives on feeding and management in the post antibiotic era and concluded with new frontiers of bacteriophage and biomarkers for gut health.

A relaxed programme allowed plenty of time for all delegates to establish and renew networks for the future, with the highlight a gala dinner in the University’s Trinity Hall.

This PSS conference was made possible by 16 commercial sponsors ( who kept up their support through two years of COVID-related postponement. To them, the U.K. Branch sends grateful thanks. Also acknowledged are the dedicated hard work of members of the Organising Committee chaired by Dr. Helen (Nell) Masey O-Neill and Dr Emily Burton, as well as local event company Suzy Howes Associates.

Following tradition, full proceedings of the 33rd PSS will be published as a book. Work is proceeding apace on its preparation, and publication is due next year. A copy will be sent to each of the conference delegates, and the book will also be available for purchase.

In the meantime, discussions are going ahead to plan the 34th PSS, which will explore another subject area to bring together poultry scientists and industry professionals. Watch this space!

2022 sept uk

Jackie Linden, WPSA UK Branch Secretary


During the WPC2022 in Paris, the USA Branch was excited to hear the announcement that Dr. Gerry Havenstein was inducted into the International Poultry Hall of Fame. Although he could not attend the ceremony in person, we share in his excitement following this recognition. The USA Branch also supported the attendance of 14 Branch members to attend the WPC2022 and deliver scientific presentations. We also want to recognize the four Cliff Carpenter Essay Award winners that were provided funding to attend either the WPC2022 or another WPSA-sponsored event. Another exciting outcome of the WPC2022 was the announcement of the awarding of the site for the WPC2026 to Toronto, Canada which will be hosted by a joint North American coalition of the Canadian, Mexican and USA Branches.

In July, the USA and Canadian Branches of the WPSA jointly sponsored the WPSA lecture, that served as the keynote lecture for the Poultry Science Association annual meeting held July in San Antonio, Texas. The speaker was Professor Ian Dunn (photo below) from the Roslin Institute, and the topic of his lecture was ‘Practical genetic inspired tools to improve the skeletal quality of laying hens; nutrition, management and selection’. Also, during the PSA Annual meeting, the USA and Canada Branches hosted a joint luncheon to better foster the relationship between these two neighbouring branches.

2022 sept usa

Dr. Bruce Rathgeber (WPSA-Canada President), Professor Ian Dunn (Roslin Institute) and Dr. Sami Dridi (WPSA-USA President)
Following the WPSA Lecture delivered at the PSA Annual Meeting

The WPSA-USA membership conducted an election to replace outgoing WPSA-USA President Sami Dridi and Board members Petek Settar and Tony Pescatore. The membership elected Lisa Bielke (Ohio State University) and Edgar Oviedo-Rondon (North Carolina State University) to the Board with their 4-year terms beginning in January 2023. They join Todd Applegate, Darrin Karcher and Robert Van Wyhe on the WPSA-USA Board. The branch is very appreciative of the service that Sami, Petek and Tony provided to the USA Branch over the past six years.

Dr Bob Buresh, USA Branch Secretary

World Veterinary Education in Production Animal Health (WVEPAH)

wvepah oie uni lu

WVEPAH is a branch of the ‘European Association for Veterinary Specialization’ (EAVS), a non-profit organization registered in Luxembourg since 1989. In 1992 EAVS created the ‘European School for Advanced Veterinary Studies’ (ESAVS, which offers high quality continuing education and is officially affiliated with the University of Luxembourg. WVEPAH has a similar structure as the ESAVS and is also affiliated with and supported by the OIE and includes OIE standards and regulations in its training programmes.

WVEPAH programmes consist of a series of courses in a particular field of poultry health and production. A typical study programme is composed of two online courses.

Courses include pre-recorded courses and LIVE meetings. Each course is taught by course masters who are internationally recognized specialists in their field and have excellent didactic skills.

The courses are designed for those professionals in the poultry industry who wish to broaden their knowledge in the area of poultry health and production with strong emphasis on health management. Intensive training is provided at an advanced level with major emphasis on a case oriented and problem-solving approach.

Participants of WVEPAH programmes acquire new skills and knowledge which they can immediately apply in their daily field activities.

Participants also have the possibility to pursue a Certificate in Animal Health: Poultry Production diploma, after completion of the two modules, including a section on regulation taught by the OIE, and the submission of the analysis of 25 clinical cases. This diploma is delivered by the University of Luxembourg and the regulatory aspects are validated by the OIE.

List of courses, dates, registration conditions see:

WPSA Calendar

For all WPSA meetings see the WPSA Calendar

Date: 28 May 2023

Date: 28 May 2023

Travel Grant Programme

For information about the Travel Grant Programmes click here.


Travel Grants can only be requested for WPSA events.

Only WPSA members can apply.


Travel Grant application forms

Speakers' Bureau Programme

For information about the Speakers' Bureau Programme click here.


Branch Development Proposal

In the Board meeting held during WPC2016 in Beijing, China, the Board decided to increase the funds available for Branch Development by making a formal call for Branch Development Proposals.
The maximum budget for a proposal is US$4,000.

Deadlines for submission are January 1st and July 1st.


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