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March 2022 Newsletter

Volume 57, March 2022  Newsletter Editor: Dr G.B. Havenstein,  


wpc2022 postponed



Executive Committee

Secretary's Report

mulder roel

The dates for the World’s Poultry Congress in Paris, France, are 7-11 August 2022. For already registered participants, in recent months, the WPC developed webinars on several topics and hoped to receive more registrations as a result. For more info on the World’s Poultry Congress please consult

Currently, the recent hostilities between Russia and the Ukraine are overpowering and are causing worldwide, unannounced and ever changing, travel restrictions. Some of these restrictions may prevent in-person meetings related to our planned conferences and symposia that are scheduled in the near future.

Some of the first signs that part of the world has re-opened for meetings and exhibitions have recently been visible. Exhibitions, branch meetings, symposia are now being planned and scheduled again. For many, the IPPE that was held in late January 2022 in Atlanta, Georgia, USA, came too early (see Treasurer Bradley’s report) and attendance was down considerably from previous years. Nevertheless, WPSA meetings such as VIV Europe, Victam Asia, and Poultry Africa, are planned and will have WPSA representatives present. Special symposia will be organized in cooperation with some of our national branches during some of these meetings.

Currently, our Branches in Argentina, Saudi Arabia and Turkey are involved in the organization of conferences and symposia for early March; and the World’s Poultry Congress will be held in Paris, France on August 7-11. The 7th Mediterranean Poultry Summit will be held in Cordoba, Spain, on 8-10 June; and the 12th Asia Pacific Poultry Conference, that is scheduled for Haikou, China on 1-3 November 2022, are other major events that are scheduled.

In an attempt to improve our worldwide communication we have placed other news items on the WPSA Facebook page ( and website. A special calendar is reserved for webinars from associations and our supporting sponsors and advertisers. New items and activities that we might potentially send out through these methods can be sent to .

Dr Roel Mulder, General Secretary

Treasurer's Report

bradley francine new

This year’s IPPE in Atlanta, Georgia, was predominantly a North American event. We saw a few of our colleagues and friends from Asia and Europe. The Latin and South Americans had a larger turnout, but their numbers were well below average also. However, we were delighted to greet many members who were in attendance and we had the opportunity to educate a good number of other visitors to our booth about WPSA. In addition, we did our best to promote the Paris World Poultry Congress, and the potential value of having a booth there, to the allied industry representatives we met.

We hope that the French branch will have good, global attendance for the 26th World Congress in Paris on August 7 -11 this summer.

I send my best wishes to all WPSA members that you will all enjoy a safe and healthy 2022.

2022 march treasurer 1  2022 march treasurer 2 
 ‘Members of the Commerce, Georgia Future Farmers of America
(organization for students studying vocational agriculture at
American high schools) visited the WPSA booth at IPPE.
They were interested to learn that if they pursued a poultry science
degree in college that they could join WPSA and be eligible for
Travel Grants. They all wished they were ready to present a paper in Paris!’
 'Bright Owusu, a member of the WPSA Ghana Branch,
who stopped for a photo with Dr Bob Buresh, and
Dr. Francine Bradley at the WPSA Booth at IPPE.'


Dr Francine Bradley, Treasurer

26th World's Poultry Congress

Palais de Congrès, August 7-11, 2022, Paris, France

The French Branch of WPSA is actively working on the preparation of the face to face 26thWPC in Paris, 7-11 August 2022, in collaboration with the international Scientific Committee and the Board of WPSA. The program will feature a combination of plenary sessions and parallel object-oriented and specialized sessions, as initially planned. The amended list of invited speakers will soon be made available online. In addition, we will set up a live channel for a subset of sessions and we will also record all sessions to make them available in replay, to make sure that everybody will make the most of the program. It will also give an opportunity, for those who would be impeached to join in Paris, to benefit from the scientific program.

The abstracts submitted in 2019 and accepted in 2020 are already available to registered participants on

  • In a book of abstracts and, for some, as e-posters on the webinars’ platform
  • Some have also been selected for presentations in webinars and can be viewed live during the coming webinars or as replay

Nearly 450 abstracts have been received for the last call for abstracts (2021) and are currently being evaluated. Together with the abstracts accepted following the second call (2020), they will make the basis for the program of the face-to-face event in Paris 7-11 August 2022.

Registrations at late fee apply now , giving access to the coming webinars, to the viewr platform and to the face-to-face event in Paris 2022. By exception, the presenting authors of an abstract submitted to the third call will benefit of registration at the regular fee up to one month after receiving the acceptation of their abstract by the Scientific Committee.

The Paris Congress Centre is fully equipped to warrant the safety of all participants. We look forward to meeting you in Paris.

Michael Duclos, Chairman of the Scientific Committee 26th WPC
Michèle Tixier Boichard, Chair of 26th WPC
Christophe Bostvironnois, President French Branch

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



espnIn order to avoid overlapping with WPC in 2022, ESPN will take place at the same planned venue, Palacongressi in Rimini, from 21 to 24 June, 2023. Our 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.


Eggs and Egg Quality

Along with the organizers of WPC2022, the WG4 Committee organized a webinar on ‘Egg Quality to Value’ based on the accepted abstracts for the WPC that had been submitted in 2019. This was done in an attempt to get in touch with those scientists who were waiting for the Covid delayed World Congress.

The webinar was held on November 9th, 2021, and it included a very interesting programme that covered genetic, analytical, freshness, and quality aspects of eggs. The detailed programme for the webinar can be viewed at:

For those of you who are registered for the 26th WPC in Paris in 2022, but who missed the live webinar, replay is available at the following link: https:/

Enjoy the presentations!

Christina Alamprese & Joel Gautron, Chairs of WG4


Poultry Meat Quality

2023 Eggmeat logo EMQ 2023

As for all European Symposia, the next ‘XXV European Symposium on the Quality of Poultry Meat‘ conjointly held with the ‘XIX European Symposium on the Quality of Eggs and Egg Products’ have been postponed to 2023 and it will be held between September 7 to 9, 2023 in Kraków, Poland. Such 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, which is one of the most recognized cities of Poland shall provide excellent opportunities not only for gathering and exchange knowledge but also for behind-the-scenes conversations in the magic places of the City.

The next WG5 member meeting will be held during the World's Poultry Congress 2022 in Paris where a couple of specialized sessions will be specifically dedicated to poultry meat quality topics such as ‘Meat Construction of Meat Quality’ and ‘Meat Processing.’ Additionally, some object-oriented sessions will be held in which meat quality issues will be covered in a transversal way.

Massimiliano Petracci, Secretary Italian Branch of WPSA

Asia Pacific Federation

WPSA Asian-Pacific Working Group News


Small Scale Family Poultry Farming

A new team has been formed for the Asian/Pacific Federation’s WG1 that is centred on Small Scale Family Poultry Farming. Since backyard poultry production is a very important part of many African and Asian Pacific countries, for the production of meat and eggs, this is an important working group for WPSA’s Asian/Pacific Federation, and the SSFPF has reorganized its team to include many members of the Asia/Pacific Federation. As a part of that effort, WG1 is organizing a World Native Chicken Conference, and will attempt to repeat that conference every two years. As the new leader of WG1, I invite and encourage all researchers and other WPSA members who are interested in this topic to join and participate in WG1. This working group can play a very important and vibrant role for many vulnerable rural economies in many countries.

Dr Nasir Mukhtar, Chair, APF WG1

For Correspondence: Dr Nasir Mukhtar Group Leader of WG1 ‘Small Scale Family Poultry Farming’
(Department of Poultry Sciences, PMAS-Arid Agriculture University Rawalpindi-Pakistan)
WhatsApp/Mob: +92 (0) 3007200074 Email:


Ratites (ostriches, emus, rheas, cassowaries or kiwis)

A Ratite Research Session is being planned for the World Poultry Congress that has been re-scheduled in Paris, France from August 7 – 11, 2022. The actual date for the Ratite Session has not yet been determined, but please send any suggestions for contributions and/or topics that you have to 

Researchers involved in research on any Ratites (ostriches, emus, rheas, cassowaries or kiwis) are asked to contact the Ratite Group. Please send an email to .

Anel Engelbrecht, Chair


World's Poultry Science Journal

Upcoming articles

Articles in upcoming Journal(s)

  • F. Kawabata - Chicken taste receptors and perception: recent advances in our understanding of poultruy nutrient-sensing systems
  • D. Adewole - Can feed additives be used to promote positive behavior in laying hens
  • J. Gittins - The economic and environmental impacts of removing ionophore coccidiostats from the UK broiler sector
  • D. Adewole - Probiotics, prebiotics, and synbiotics: an overview of their delivery routes and effects on growth and heatlh of broiler chickens
  • T. Ebeid - Organic acids and their potential role for modulating the gastrointestinal tract, antioxidative status, immune response, and performance in poultry
  • M. Elling-Staats  Caecal protein fermentation in broilers
  • V. Tufarelli - Effect of in ovo injection of some B-group vitamins on performance of broiler breeders and their progeny
  • H.-L. Lin - Chicken semen cryopreservation: importance of cryoprotectants
  • B. Tainika - Lighted incubation: embryonic development, hatchability, and hatching quality of broiler chicks
  • V. Kennady - Impact of heat stress on poultry production
  • C. Wang - A review of the lesser mealworm beetle (Alphtobius diaperinus) as a reservoir for poultry bacterial pathogens and antimicrobial resistance
  • A. Sulzbach - World occurrence and related problems caused by Megninia ginglymura (Mégnin) (Acari: Analgidae) in comerical poultry farms
  • A. Wales - Review of food grade disinfectants that are permitted for use in egg packing centres
  • V. Dos Santos - Propolis: effects on the sanitisation of hatching eggs



Chicken taste receptors and perception: Recent advances in our understanding of poultry nutrient-sensing systems


The sense of taste plays an important role in the detection of nutrients or toxic substances in foods, and it is deeply related to the feeding behaviours of animals. Thus, elucidation of the taste-sensing system in chickens can improve our understanding of poultry nutrition and will be useful to make new alternative feedstuffs. In this review, we summarize the recent advances in the study of taste buds, taste receptors, and taste perception in chickens. Recent studies have revealed the distribution of taste buds in the oral cavity of chickens and the expression of multiple taste receptors in the oral and gastrointestinal tissues of chickens. Functional analyses have shown that chicken taste receptors can recognize amino acids, fatty acids, and a wide variety of bitter compounds, and the activities of chicken bitter taste receptors can be inhibited by 6-methoxyflavanon. Behavioural analyses have demonstrated that chickens can respond to amino acids, bitter stimuli, salty stimuli, sour stimuli, and fatty acids, but chickens have a low taste sensitivity for sugars. The recent histological, molecular biological, and behavioural evidence indicates that chickens have well-developed nutrient-sensing systems.

Can Feed Additives be used to Promote Positive Behaviour in Laying Hens? A Review


The welfare of laying hens has been a subject of interest among consumers, breeders, and animal welfare organisations across the globe. Laying hens' behaviour is an important indicator of their welfare and provides feedback on how they perceive their housing environment. A relationship is believed to exist between serotonin levels and other coordinating axes of the brain such as the hypothalamic-pituitary-adrenal axis, which regulates various types of behaviour, and this provides us the opportunity to achieve specific targeted modulatory interventions. Despite increasing interest in the use of feed additives in poultry production, there are inconsistencies in their application to promote positive behaviour in laying hens because of several factors, including age, sex, housing system, and genotype of the hens. This mini review expounds on the use of various feed additives such as phytogenic substances, probiotics, essential oils, vitamins, minerals, amino acids, as well as dietary fibre additives for promoting positive behaviour and overall welfare of laying hens in housing systems. Feed additives have previously been used extensively for their immunomodulatory, anti-inflammatory, antimicrobial, and anti-fungal properties in poultry production, but their potential for promoting positive behaviour in laying hens through physical, physiological, anxiolytic, anti-depressive, and neuromodulatory activities was reviewed in this article.

The economic and environmental impacts of removing ionophore coccidiostats from the UK broiler sector


Ionophore coccidiostats are widely used in the UK broiler sector at present but their future use has been questioned. A review of published and technical literature has been undertaken to assess the likely impacts of removing ionophore coccidiostats from UK broiler production. Expert opinion from two poultry veterinarians has been used to establish the probable approach and interventions that would be needed in a ‘no-ionophore’ program and the likely impacts. Comparisons have been made between ‘standard’ and ‘no-ionophore’ programs, covering farm production costs and environmental impacts.

Key performance assumptions for the ‘no-ionophore’ program include one extra day of growing time to achieve target average liveweight of 2.26 kg and a five-point increase in feed conversion ratio (FCR) from 1.58 to 1.63. Any increase in mortality is considered marginal if other interventions are adopted and therefore this study has assumed no differences.

Veterinary opinion considers that a reduction in stocking density of 4 kg of liveweight per square metre would be needed to maintain good health in a ‘no-ionophore’ program; a two-day increase in house turnaround time between flocks is also recommended. Changes to feed specifications would be expected, together with the use of a coccidiosis vaccine.

Based on stated assumptions, farm production costs are calculated to be 5.7% higher for the ‘no-ionophore’ program than a standard program. Optimistic and pessimistic scenarios indicate cost increases ranging between 3.3% and 10.8%. The ‘no-ionophore’ program was also found to result in a 3.9% increase in greenhouse gas emissions per bird and to require 3.3% more land to grow crops for poultry feed. Increased production cycle length and reduced stocking density in the ‘no-ionophore’ program would mean that a 19% increase in UK broiler growing space is required, to maintain current chicken meat output levels.

Probiotics, prebiotics, and synbiotics: An overview of their delivery routes and effects on growth and health of broiler chickens


The world population is drastically increasing, and it is evidently necessary to have more secure food supply systems. Poultry meat is one of the most cost-effective and most popular sources of protein. For decades, poultry producers have depended on preventative antibiotics to increase growth performance by establishing and maintaining healthy and functional gastrointestinal tract in young animals. However, these practices are currently under immense regulatory and consumer pressure for termination, due to the development of antibiotic resistance arising from overuse of antibiotics. Antibiotics need to be replaced by alternatives that have similar beneficial effects in terms of modulating the gut microbiome and improving the health and growth of the animals. Various groups of alternatives have been studied in poultry production, including prebiotics, probiotics, synbiotics, organic acids, essential oils, enzymes, and other novel compounds that are continuously emerging. Probiotics, prebiotics, and their combination (synbiotics) are gaining popularity among the different potential alternative products to antibiotics. In addition to evaluating the effectiveness of different groups of alternatives in the chicken industry, the techniques and methods for administrating those alternatives is also an important aspect that has been studied in order to obtain optimal results. Thus, proposing new strategies to maximize the effectiveness of different alternatives has been growing simultaneously with the proposed elimination of antibiotics from food animal production. This review is focused on the use of probiotics, prebiotics, and synbiotics as alternatives to antibiotics in the poultry industry, as well as descriptions of different application methods for delivering those alternatives to broiler chickens to maximize their effectiveness.

Organic acids and their potential role for modulating the gastrointestinal tract, antioxidative status, immune response, and performance in poultry


Using antibiotics as growth factors has been banned due to increasing the problem of antibiotic resistance and presence of antibiotics residues in poultry products. Therefore, organic acids (OA) could be utilized as a promising alternative to antibiotic growth promoters because of the increased require for antibiotic-free and organic poultry products. Scientists have paid much attention to the benefits of OA due to their ability to preserve a healthy intestinal microbial balance. Dietary OA supplementation could enhance the gut structure integrity, physiological function, intestinal immunity and health. Organic acids products have also been involved in enhancing the antioxidative status via activating the antioxidative enzymes and reducing lipid peroxidation. Moreover, dietary OA are able to stimulate the humoral- and cell-mediated immunity and regulate cytokines in the host. These physiological and immunological benefits of OA are translated into various improvements in growth performance, laying performance, egg quality, meat quality, and the products' safety. Interestingly, OA have positive impacts on alleviating heat stress in poultry. The current review is an endeavour to throw the light on the recent findings related to the benefits of dietary OA on gut development, nutrient absorption, gut microbiota, antioxidative properties, immune response, productive performance, heat stress, food quality and safety in poultry.

Caecal protein fermentation in broilers: A Review


Protein fermentation (PF) is the degradation of protein by microbiota in the gastro-intestinal tract. It results from high intake indigestible protein and/or increased endogenous losses, and it may be the cause of gut health issues. This is important as the use of less digestible protein sources for poultry is expected to increase as a consequence of the food-feed discussion. Here we review the relations between dietary protein, caecal PF and gut health and identify critical knowledge gaps. Finally, we suggest methods for the investigation of caecal PF. The majority of the microorganisms have never been cultured, however, through cultivation-independent molecular approaches, many new taxa have been identified. Researchers have identified taxa that are enriched in healthy/ unhealthy birds. The mechanisms underlying these associations remain unclear. PF results in the production of potentially detrimental metabolites. This generally results in a higher pH, further encouraging PF. Studies on the effects of PF (metabolites) on gut health in poultry are limiting. For the in vivo evaluation of PF an increase in protein flow into the caeca is required, which can result from an increased level of dietary indigestible protein. Heat damage reduces protein digestibility and can therefore be used to create a within ingredient contrast for in vivo studies. A remaining challenge is that the relation between indigestible protein level and subsequent PF is not straightforward, as fractional separation of digesta occurs in poultry, allowing part of the digesta to bypass the caeca. To further study the extent to which microorganisms will ferment the protein fraction flowing into the caeca, in vitro studies can be applied. However, their application depends on the ability to separate the fraction of pre-digested feed that is likely to enter the caeca. Altogether, an increase in PF will affect microbiota composition, metabolite production, and potentially gut health.

Effect of in ovo injection of some B-group vitamins on performance of broiler breeders and their progeny


Many researchers around the world have been attracted by the delivery of various nutrients, supplements, safety factors, vaccines and drugs through in ovo injection to enhance the production performance, immunity and health of broilers. The purpose of this review is to summarize the information on in ovo injection of some B-group vitamins into the eggs of broiler breeder flocks and their progeny. The available results of different trials showed that in ovo injection of thiamine as well as riboflavin at 100 μg concentration improved hatching, conversion factor and body weight in broilers. It improved the chickens' performance and other performance indices such as conversion coefficient, one day weight and body weight, and also had a positive effect on the immunity (such as increasing IgM and IgG levels and increasing lysozyme activity) of experimental treatments. On the other hand, in ovo injection of choline did not affect the hatchability rate, but improved the performance indices of the experimental treatments, as well as the effect found with in ovo injection of folic acid. In ovo injection of 40-100 μg of folic acid had no effect on hatchability rate, but had significant effects on immune system (increasing IgM and IgG levels and increasing lysozyme activity and increasing lymph node weight in experimental treatments) and performance. In addition, in ovo injection of pyridoxine at a concentration of 100 μg as well as cobalamin at 40 μg improved the hatchability and performance indices (feed conversion ratio, body weight). Furthermore, in this review, we attempted to provide a comprehensive overview of this issue by outlining the reports and explaining the mechanism of action of these vitamins.

Chicken semen cryopreservation: importance of cryoprotectants


Sperm cryopreservation is an important strategy to conserve animal genetic diversity and transmit superior genetic background, facilitated by a non-invasive sampling and collection of large amounts of sperm. In chickens, various freezing protocols and cryoprotectants (CPAs) have been developed to freeze sperm, but each lab still debate and compete to disclose the most suitable freezing conditions. Many key points, such as semen donor selection, collection tips, diluent compositions, CPAs selection, pre-freezing manipulation, semen packaging type, freezing and thawing rates, are all impactful to the efficiency of chicken sperm cryopreservation. Whereas glycerol is believed as the most efficient and the less toxic CPA, it also presents an unwanted contraceptive effect after insemination. Thus, one of the major developed strategies to conquer this issue is removing glycerol before insemination but current protocols remain not efficient to completely abolish glycerol contraceptive effect. Novel methodologies will bring us a better understanding of the cellular and molecular mechanisms involved in sperm cryobiology to decipher the challenges of chicken sperm cryopreservation.

Lighted incubation: embryonic development, hatchability, and hatching quality of broiler chicks


This paper reviewed the effects of lighted incubation (in ovo lighting) on incubation performance and chick quality in broilers. Globally, the broiler chicken industry is among the fastest growing commercial sectors. Chicken meat has the fastest growth rate compared to other common animal protein sources, and its demand will always increase due to increasing population growth worldwide. Therefore, a need for a proportional increase in hatchery efficacy is also increasing with this demand. In past decades, implementation of artificial light during incubation in broiler chickens accelerated with key considerations such as light colour, light source, photoperiod, eggshell colour and pigmentation, light shape, and light intensity. Photostimulation has a significant effect on embryo development during the last quarter (from 14-21 day of incubation). However, incubating eggs under light from day 1-18 improves embryo development and hatchability compared with lighting for 21 days. Photoperiod of 12L:12D improves hatchability, chick weight, and leg health compared with 24L and 24D. High light intensity decreases hatching traits such as chick weight. While incubation under green light increases muscle growth and weight gain of chicks, lighted incubation with red and white light enhances hatchability compared with other wavelengths and darkness. In conclusion, it is important to continue studies on lighted incubation to identify the exact mechanisms of how other light colours impact embryogenesis and investigate the interaction or synergistic effects of a combination of two or more wavelengths.

Impact of heat stress on poultry production


The ever-increasing demand for meat and egg has placed the poultry sector as a priority farming avenue for both small-scale backyard farming by rural farmers and commercial enterprises. The elevated temperature over the years has been affecting the poultry production systems through reduced growth and egg production all over the world. At a time when heat stress is perceived as a universal issue and with climate change predicted to have a further significant impact on the global temperature increase, the adverse impact on the poultry sector is expected to intensify further. An extensive review is made to discuss the impact of such heat stress on feed intake and feed conversion efficiency, poultry growth and production, egg production, physiology, reproduction, immunity, and disease incidence. Advanced biotechnology tools can be used for identifying suitable molecular markers and designing worthy breeding programmes which may lead to the development of heat tolerance strains in poultry. Further, suitable mitigation strategies have also been suggested for reducing the impact of such stress conditions on the poultry for minimizing the economic loss of the poultry growers.

A review of the lesser mealworm beetle (Alphitobius diaperinus) as a reservoir for poultry bacterial pathogens and antimicrobial resistance


The lesser mealworm beetle (Alphitobius diaperinus) is one of the most abundant and resilient insect pests within poultry houses and has been observed dwelling in all types of poultry operations. The beetle is a nuisance and causes structural damage to poultry houses, which is costly for producers. Most importantly, it has been demonstrated that the lesser mealworm beetle is capable of carrying a wide variety of poultry-specific and zoonotic viral, bacterial, and parasitic pathogens. This article will focus on investigating the lesser mealworm beetle's role in the retention and transmission of bacterial pathogens and its contribution to the development and dissemination of antimicrobial resistance (AMR). Field and laboratory studies conducted to investigate the relationship between the lesser mealworm beetle and poultry-associated bacterial pathogens will be reviewed to summarize the current understanding of the beetle's contribution to bacterial pathogen transmission and antimicrobial resistance, and to provide a foundation for future studies.

World occurrence and related problems caused by Megninia ginglymura (Mégnin) (Acari: Analgidae) in commercial poultry farms – A Review


Mite infestations can have negative impacts on the poultry industry, especially on egg-laying hens. Controlling ectoparasites is critical to maintaining farm biosafety, and lack of control increases the risk of poultry-related health problems and economic losses. Among the mite species that can infest laying birds, Megninia ginglymura (Mégnin, 1877) has been described in several countries, which means they have great importance in the poultry industry worldwide. The present review aims to outline the global distribution of M. ginglymura, as well as major issues, related symptoms, and control methods in poultry production. Searches were performed in three different databases, and keywords that should appear either in the title or abstract were ‘Megninia’, ‘Megninia ginglymura’, and ‘birds’. From the initial query, 45 papers were returned, reaching a total of 33 publications after the exclusion criteria. M. ginglymura has already been reported in the American, African, European, Asian and Oceanian continents. Problems related to this species have been reported for decades, and its dissemination and occurrence take place in different parts of the world. Therefore, there is a need to disclose and approach the impacts of the species and the ways used for control it worldwide, as a way of taking information to the places that attend or will suffer from this mite.

Review of food grade disinfectants that are permitted for use in egg packing centres


The handling and packing of eggs in commercial production creates opportunities for the spread of those pathogenic micro-organisms that can survive on the surfaces of eggs and equipment, and in organic soiling such as egg contents and faeces. Salmonella Enteritidis is a key zoonotic pathogen, and its spread between egg production premises in recent years has implicated cross-contamination via egg handling and packing equipment. Cleaning and disinfection to prevent such spread has to be performed using food-grade agents, which limits the options available to manufacturers of disinfectants and sanitisers. The present review examines the active components of such products, based upon the most frequently used disinfectants and sanitisers in this part of the egg industry in the United Kingdom. Peer-reviewed data are summarised for the main bactericidal elements, comprising sodium hypochlorite and surfactants including quaternary ammonium compounds. In addition there is brief consideration of ancillary agents with cleaning, pH-modulating, water-softening and additional bactericidal effects. The amount of published surveillance and experimental data for the effect of these agents on Salmonella spp. and related organisms is very variable, and in addition findings illustrate substantial differences in biocidal effect between and within studies. Some of these relate to test variables such as surface material, concentration, exposure time, and the presence of organic soil or biofilm. Other differences reflect inherent variability in disinfectant testing. It is suggested that inadequate disinfection may occur under some foreseeable conditions of application, even if concentration and exposure time recommendations are followed. Further testing may be useful if it more closely replicates the products and conditions of use.

Propolis: effects on the sanitisation of hatching eggs


The use of sanitisers, with natural compounds as active ingredients in their formulations, can be of great value in the sanitisation of hatching eggs. Here we review the effects of sanitising hatching eggs with propolis on the eggshell microbiota, hatchability and survival of post-hatch chicks. We demonstrate that propolis is an appropriate and promising option for sanitising hatching eggs, as it helps in the reduction of microbial load on the eggshell (total aerobic mesophilic bacteria and fungi) and increases embryo safety. Typically, propolis does not negatively affect the hatchability percentage and can, in some cases, improve this rate by up to 11%. Thus, we reinforce the positive impact of natural products on poultry production.


Branch News


Australian Poultry Science Symposium 2022

The 33rd Annual Australian Poultry Science Symposium (APSS) was held once again as a “virtual” meeting on February 7-9, 2022. Hopes of having a hybrid meeting faded as the covid-19 pandemic continued to generate lockdowns and border closures within Australia and between Australia and other countries.

The virtual meeting was, once again, extremely well delivered with plenty of opportunities to meet with the sponsors at their respective online booths as well as opportunities for networking with random groups of people set up online for short chat sessions. For the main part of the symposium, most invited presentations were “live” (although invited presenters had provided recorded presentations) and the contributed oral presentations were pre-recorded as videos. The pre-recorded videos ensured that the program would not be disrupted in the event of any IT problems. The posters had short video presentations attached to the on-line posters and some poster presenters were selected for short oral presentations. The sections of all sessions were followed by a live question and answer (Q & A) session and participants had the opportunity of asking questions as a presentation was being screened, as well as during the live Q & A.

Touchpoint Meeting Services provided support to the event and did a great job.

All recorded presentations and sessions continue to be available to paid registrants for a period of 60 days following the symposium.

Invited speakers from outside of Australia were:

  • Emeritus Professor Susan Watkins (University of Arkansas, U.S.A.) “Understanding and managing water for successful flocks”
  • Professor Deana Jones (USDA, U.S.A.) “Understanding egg quality”

Invited speakers from within Australia were:

  • Professor Richard Eckard (University of Melbourne) “How can the poultry industry become carbon neutral?”
  • Professor Ian Godwin (University of Queensland) “Improving the protein content and digestibility of grain sorghum using gene editing”
  • Professor Mingan Choct (University of New England) “Fibre in poultry rations and its relationship with broiler performance and gut health”
  • Professor Dana Stanley (Central Queensland University) “The rise of antimicrobial resistance”; “The role of feed safety in the development of poultry microbiota”

Past proceedings of the APSS are available at:

Keep an eye on this site as the 2022 proceedings will also be available there in the near future.

All participants agreed that the virtual symposium was a great success. However, of course, they missed having the usual face-to-face contact and the social gatherings. We are hopeful that the 2023 symposium will be a “hybrid” event with participants attending in person if they are able to but offering online participation for those who are unable to attend in person.


 FACTA starts its event schedule with the ‘Refresher Symposium in Aviculture’

A series of modules will highlight themes such as bird management, sanitation, environment and sustainability. The goal is delivering a broad technical and management refresher course on poultry production systems.

FACTA will begin its event schedule in March with the ‘Refresher Symposium in Aviculture’, which will be divided in four modules: Egg Incubation, Broiler Breeders, Broilers and Slaughter-Processing, respectively on March 9th, 10th, 16th, and 17th. All courses will be conducted online and registrations are already open through the website
The goal is offering professionals, researchers, specialists and students working in Brazilian and Latin American aviculture a broad technical and management refresher course on the poultry production system. This is in line with this entity's mission of supporting and spreading new knowledge and technologies applied to the sustainable development of the sector.

Benefits of autogenous vaccines will be theme of a FACTA symposium in September

Aiming at spreading technical and scientific knowledge to professionals and students in the poultry sector, FACTA WPSA-Brazil will organize the Symposium ‘Autogenous Vaccines’ ion September 13th and 14th.
The event will elaborate on the benefits of autogenous vaccines, personalized products produced from isolated microorganisms identified in the animals of a specific establishment affected by diseases.
Since some pathogens are capable of transforming into new strains, autogenous vaccines can offer more efficient protection against such variants. In these cases, autogenous vaccines offer producers an efficient mechanism to rapidly respond to such changes by using the most recent isolates, taken from sick birds from their own poultry houses.

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


The French Branch of WPSA is co-organiser of the JRA-JRPFG (French Poultry Research days) in Tours 9 and 10 March 2022, see At this occasion the Branch will meet current and candidate members and organise a job dating between students and professionals of the poultry sector.

The priority of the French Branch for the coming months remains the organisation of the 26th WPC with

  • The last three webinars to valorise the abstracts submitted in 2019, and accepted in 2020, will take place March, 12 April and 10 May 2022
  • A final face to face WPC meeting in Paris, 7-11 August 2022: The Branch will make every effort to welcome the largest possible number of delegates at the “Palais des Congrès de Paris” and offer a complementary online program.
  • The Branch is grateful to all those who helped and continue helping in the organisation of these events and especially to the early sponsors for their continuous support despite the two successive postponements of the 26th

Dr Michel DUCLOS, Secretary of WPSA French Branch and Dr Christophe BOSTVIRONNOIS, President of WPSA French Branch


Dear poultry friends: Again this year, we will not be able to have our normal face-to-face annual meeting, so the spring 2022 meeting of the German Association for Poultry Science will again take place online. Nevertheless, we have been able to put together a professionally interesting programme with current topics, and we look forward to your participation for this online meeting. We hope to see you in person again in 2023!

Your Presidium Dr Michael Grashorn, Prof. Dr Silke Rautenschlein, Dr Inga Tiemann, Dr Anke Förster

PS: The meeting is open to all interested parties, especially those who are already members or would like to become members of the German Association for Poultry Science.

German WPSA Symposium
via Zoom,
Wednesday, March 16, 2022

Information for accessing the symposium will be emailed to you following your registration

09.00 Opening
09.15 Jens Tetens, University Göttingen - Feather pecking in laying hens - insights from genomics and transcriptomics
09.45 Jürgen Heß, University of Kassel, Germany - The close-up area of laying hen houses in the between animal hygiene and groundwater protection
10.15 Philipp Hofmann, Bavarian state farms - News from the Experimental and Educational Center for Poultry Husbandry Kitzingen10.45
10.45 Poultry chat at
11.00  General meeting
13.00    Léni Corrand, Selarl de Veterinaires, Abiopole, France - Duck Industry in the face of avian influenza: is it sustainable?
13.50 Julia Marggraff, Thüringer Animal Diseases Fund Promotional awards - Diagnostics of sternal lesions in laying hen flock
14.20 Carolin Adler (Dissertation) Evaluation of an innovative housing system in broiler production based on two different floor types
14.30 Ruben Schreiter (Dissertation) Influence of environmental enrichment on the integument and performance of young and laying hens
14.30-14.40    Joint discussion
15.00 End of the lecture conference


Registration available until 10.03.2022 to Dr Anke Förster,, Fax: +49 (0)4330-9834

Inga Tiemann, Secretary, German Branch


The Italian Branch of WPSA is organizing the 56th Annual Meeting that will be held on April 22th, 2022 at the Palacongressi of Rimini (Italy), and it will deal with ‘Are we pushing broilers to their biological limits?’. This emerging topic will be explored thanks to the contributions of a number of prestigious international speakers.


09.10 Registration and Welcome coffee
09.40    Opening address: Martino Cassandro, President of Italian Branch of World’s Poultry Science Association
10.00 Applying energy balance modelling to assess the limits of efficiency of broiler chicken, Ilkka Leinonen, Natural Resources Institute Finland
10.30 Is gut functionality a limitation for maximizing growth?, Birger Svihus, Norwegian University of Life Sciences (Norway)
11.00 Rapid growth and leg weakness in poultry, Bob Wideman Jr., University of Arkansas (USA)
11.30 Fast muscle growth and meat quality issues, Massimiliano Petracci, University of Bologna (Italy)
12.00 Consequences of the breeding of broilers for rapid growth and high breast meat yield, and their genetic mitigation, Avigdor Cahaner, The Hebrew University of Jerusalem (Israel)
12.30 Discussion and Conclusions
13.30 Lunch break
14.30      Meeting of WPSA members


On the day before, WG2 members will visit the ‘Rimini Conference Center’ where the 23rd edition of the European Symposium on Poultry Nutrition (ESPN) will be hosted from June 21st to 24th, 2023. 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. The many attendees will include both poultry research scientists and practitioners, with 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. More details are already available on the Symposia website:

2023 espn logo 


2022 avicolaFinally, the Italian Branch of WPSA will participate to the First edition of the Fieravicola Poultry Forum & B2B. The Poultry Forum, an international event dedicated to the poultry industry, will take place on 4-6 May 2022 at the Rimini Expo Centre. This event is promoted by Fieravicola in collaboration with Assoavi (the Association of Italian egg producers) and Unaitalia (National Union of Meat and Egg Food Chains). The first day will be dedicated to the promotion of finished products, the second day to international issues, and the third day will include a session dedicated to technical-scientific aspects. The event will include participation of experts from all over the world, in collaboration with the Italian Branch of the World's Poultry Science Association, the World Veterinary Poultry Association (SIPA), and the World Rabbit Science Association (ASIC). This event will alternate with Fieravicola, which will be a biannual event held in odd-numbered years, and that event is aimed at establishing regular contact with the poultry industry.

Massimiliano Petracci, Secretary, Italian Branch of WPSA


The 2022 Spring Meeting of the Japan Poultry Science Association (JPSA) will be held as an online meeting on 28–29 March. The meeting will include presentations of original research findings, a symposium, a seminar, and a general meeting. The symposium will be held from 13:00 to 17:30 on March 28 as per Japan standard time. The presentations of research findings and the general meeting will be conducted from 9:00 to 17:00 on March 29. In addition, a seminar will be held during the lunch hour (12:00 – 13:00) on that date. Details for the meeting are available on the JPSA web site (, and JPSA will welcome participants from all over the world.

The presentation of original research findings will include 41 presentations, including 21 that will be candidates for the Best Presentation Award by young researchers. During the general meeting, the Best Paper Award for best publication in the 2021 Journal of Poultry Science (JPS) will also be announced. In addition, new board members for JPSA will be elected by the members present at the General Membership Meeting. The new board members will serve for the next two years.

Two symposia will be planned and organized during the JPSA 2022 Spring Meeting. The first one will be entitled ‘The Insect Feeds, as Nobel Ingredients for Aquaculture and Livestock Diets’. The organizers for this symposium will include Dr Yoshiki Matumoto, Kagawa University, and Dr Noboru Manabe, Osaka International University. Speakers will include: Dr Yoshiki Matumoto, Kagawa University; Dr Yasuhiro Fujitani, Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture; Dr Takeshi Miura, Ehime University; and, Dr Kiyonori Kawasaki, Kagawa University. The second symposium will be entitled ‘Metabolomics in Chicken Eggs’. That symposium will be organized by Dr Tatsuhiko Goto, Obihiro University of Agriculture and Veterinary Medicine, and by Dr Shozo Tomonaga, Kyoto University. The speakers include Dr Mami Fukuoka, Kewpie Corporation; Dr Masataka Wakayama, Keio University; Dr Tsuyoshi Shimmura, Tokyo University of Agriculture and Technology; and, Dr Tasuhiko Goto. Details for the symposium are available at (in Japanese).

The Young Members' Executive Committee for JPSA will hold a seminar entitled ‘Using Guanidinoacetic Acid in Animal Feed’ from 12:00 - 13:00, on March 29. Two speakers including Dr Hitroshi Kojo, from the Sumitomo Chemical Corporation, who will address an ‘Introduction of the New Feed Additive - Guanidinoacetic Acid’; and, Dr Yoshiyuki Ohta, Nippon Veterinary and Life Science University, who will speak on ‘Broiler Nutrition and Guanidinoacetic Acid’. The seminar information is available on (in Japanese).

JPS, the official scientific journal of JPSA, obtained an Impact Factor of 1.425 (2021 Journal Citation Reports, Clarivate Analytics). The JPS is also a member of PubMed Central (PMC), and the articles of the journal can be accessed through the PubMed search engine ( In addition, the JPS is available on the Directory of Open Access Journals (DOAJ) database (

JPSA welcomes the submission of original research articles and review papers for the JPS using the following website: Free access to download the full-published articles in JPS is available on J-Stage (, which provides an excellent opportunity for all to access the full published articles.

JPSA wants to contribute to Poultry Science both in Japan and around the world by enhancing its international activities with the members from different countries. Thus, JPSA has a membership category for foreign citizens residing abroad as a ‘Special International Member.’ The page charges for publishing papers by such members in the JPS are set at a regular membership price. JPSA invariably welcomes new members from all over the world. Please visit our JPSA website ( for further information.

The COVID-19 pandemic continues to make a tough situation all over the world; however, it appears to be getting better. Please take good care of your selves until the Covid Pandemic is over!

Naoki Goto, Secretary of WPSA Japan Branch


The Kenya branch will start serious discussions on how to make poultry products produced in Kenya more competitive compared to those from the rest of the EAC member states. At the moment, poultry products are being imported into the Kenyan market from the East Africa region. Because of the launching of the Africa Free Trade Area, the Kenyan government cannot continue to ban the importation of poultry from the region.

Our work and discussions will involve data collection and analysis from the region, seminars, conferences, and capacity building of farmers with regard to poultry management in an effort to help the Kenyan Poultry Industry be more competitive. We shall keep you updated as required.

Kind regards,

Thomas Kaudia, Secretary, Kenya Branch


The Senegal branch of WPSA is in the process of organizing a meeting for the branch that will be called: Poultry Senegal 2022. Hopefully, that meeting will take place during May, 2022 in partnership with the Senegal Ministry of Agriculture. More details will be provided in the coming months. For more information and/or input related to the planning of the meeting, see contact information below.

Prof. Ayao Missohou, Secretary Senegal branch
Ecole Inter-Etats des Sciences et Médecine Vétérinaires (EISMV), Dakar, Sénégal
Phone: 00221338651008, 00221338651022, 00221775751140

South Africa

Due to travel restrictions, the South African branch decided to again meet via a virtual symposium for 2021, which was held from 24-25 November 2021. It was entitled ‘Advancing Poultry Science in a Virtual World,’ and 250 people participated on the virtual platform hosted by Vetlink. The platform allowed interaction between speakers, participants and sponsors. The meeting being virtual also allowed a range of international as well as local speakers, and numerous student presentations. The range of time zones was interesting, but our speakers rose (some very early!) to the challenge! Although we missed seeing friends and colleagues face to face, the feedback was very positive.

We are waiting in anticipation for WPC2022 for the announcement of the host country for the next World Poultry Congress. South Africa is one of the branches in the competition to serve as the host.

We are also currently going through applications for the Barnard-Gous bursary award which supports a postgraduate student studying towards an advanced Poultry Science degree. The winner will be announced shortly. It is encouraging that there are so many students interested in pursuing this field of study.

See our website

Nicola Tyler, Secretary, South Africa Branch


In our latest board meeting, we agreed to initiate relations with an African country where there is no WPSA branch. We have established contacts with Gambian authorities and received the latest situation of poultry-related activities and data in that country. The WPSA Turkish Branch deems that there is a suitable environment to explore and develop cooperation with Gambian poultry interests. Furthermore, we will also encourage them to set up a WPSA branch in Gambia if the conditions are convenient.

The WPSA Turkish Branch has 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, WPSA Turkish Branch

United Kingdom

The Spring Meeting will take place on 13th-14th April at the De Vere East Midlands Conference Centre near Nottingham. This will be the first time the WPSA has met at this smart and modern conference facility. Once again, our meeting coincides with the annual conference of the British Society for Animal Science. A long-term arrangement, this has helped to provide additional networking and learning opportunities for all delegates.
The upcoming Spring Meeting provides us with the chance to trial a hybrid meeting format. While this involves some additional costs, it will allow delegates to choose for the first time whether to participate in person or remotely. As well as a useful experience for us as conference organisers, it ensures the meeting can go ahead without a hitch, even if travel restrictions were to be imposed again. (We are obviously hoping that doesn’t happen!).
More information on the website:

Dates of 22nd -24th August 2022 have been finalised for the re-scheduled 33rd Poultry Science Symposium (PSS) organised by the UK Branch. As originally planned for 2020, the meeting will be held at Clare College, University of Cambridge, U.K., and the theme is ‘Pre- and Probiotics: Nutritional, Veterinary and Production Perspectives’. Put the date in your diary, and watch out for further news on the website,

Jackie Linden, WPSA UK 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: 29 September 2023

Date: 29 September 2023

Expo Center Norte, red pavilion, Sao Paulo, Brazil
Date: 03 October 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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