Volume 49, December 2019 | Newsletter Editor: Dr G.B. Havenstein, |
![]() |
World's Poultry Congres 202016-20 August, Paris, FranceScholarship AwardsDuring the XXVI World’s Poultry Congress in Paris, France in 2020 Scholarship Awards for respectively the WPSA Paul B. Siegel Research Award and the WPSA Education Award are going to be presented. International Poultry Hall of FameThe next presentation of members for the International Poultry Hall of Fame (IPHF) will take place at the next World’s Poultry Science Congress in Paris, France in 2020. Cliff D. Carpenter International Essay CompetitionAt the latest Board meeting, held during the Poultry Science Association (PSA) meeting in Montréal, Canada, it was decided to start the Cliff D. Carpenter International Essay competition. Nominating Advisory Committee (NAC)Preparations are underway for the formation of a Nominating Advisory Committee (NAC), which committee is in charge of seeking candidates for the WPSA Board 2020-2024. The NAC will be chaired by Dr Mamduh Sifri. Branches and members can propose candidates for the offices of President, five Vice-Presidents, Secretary and Treasurer. World's Poultry Congress 2024The Board of the World’s Poultry Science Association (WPSA) has received three bids to organise the World’s Poultry Congress 2024. The bidding Branches are Argentina (Buenos Aires), Canada/Mexico/USA (Toronto) and South Africa (Cape Town). 59 Branches were eligible for the pre-selection, 33 branches took the opportunity to send their votes. The Canada/Mexico/USA bid and the South Africa bid therefore are selected to the final ballot during the Council meeting, 18 August 2020, Paris, France. Updates on the above mentioned topics will be publsihed on the WPSA website under the heading !! WPC2020 !!. |
|
Abstract Submission and Registration for WPC2020Abstract submission and registration for WPC2020 are open. Click here for details. |
Executive Committee
Secretary's Report
World’s Poultry Congress 2020 Paris, France
Preparations are underway for the Council meeting during the next WPC. One of the main points on the agenda of the Council meeting will be the election of the city and country for the next World’s Poultry Congress in 2024. There have been 3 bids to hold the WPC 2024. According to our Constitution and By-Laws, branches are voting which two candidates cities will be forwarded to official vote during the Council meeting. The candidate cities are: Cape Town proposed by the South Africa branch and Toronto proposed by the Canada/USA/Mexica branches.
Branches have also been informed on nomination procedures for the WPSA Paul B. Siegel Research Award; the WPSA Education Award; Inductees into The International Poultry Hall of Fame; and, for the Nominating Advisory Committee (i.e., the committee in charge of seeking candidates to serve on WPSA’s board for the years 2020-2024). For the NAC, Branches and members can propose candidate names to be considered by the NAC for service on the board. Further information and all guidelines for each of these committees are available on www.wpsa.com under WPC2020.
WPSA presence at exhibitions and conferences
In 2020, WPSA will be present during many events. Examples are the exhibitions IPPE, Atlanta, USA, VIV MEA, Abu Dhabi, UAE and Victam Asia and Animal Health and Nutrition, Bangkok, Thailand and the scientific meetings, the Mediterranean Poultry Summit, 25-27 March 2020, Cordoba, Spain and the 1st Poultry Nutrition symposium 25-26 March 2020 in Bangkok, Thailand. Information on the programmes can be found on www.mpn-wpsa.org/spain2020 and the WPSA Calendar.
Promotional materials of WPSA, the World’s Poultry Science Journal, WPC 2020 in Paris, France, symposia and conferences will be on display. We expect to meet with many members during these events. Members and all interested persons are invited to attend the events and to meet many other WPSA members and representatives.
WPSA World’s Poultry Science Journal
Starting 2020 the World’s Poultry Science Journal will be hosted and produced by Taylor and Francis Publishers.
WPSA programmes
WPSA has several programmes to support members and branches. Details on the Travel Grant programmes, the Speakers’ Bureau programme and proposals for Branch Development can be found on the WPSA website under Support. Criteria for eligibility are published together with the (different) deadlines for the individual programmes. Please follow the instructions as inaccurate, incomplete and late applications have to be rejected.
Cooperation with the organization on World Veterinary Education in Production Animal Health (WVEPAH)
The WVEPAH, a non-profit organization organizes training courses on poultry (for 3 à 4 weeks) in several countries. More details are on www.wvepah.org. All activities will also be announced on our website and in the WPS Journal.
Dr Roel Mulder
Treasurer's Report
This quarter has been an active one, with much activity in Latin and South America. In October, I was pleased to attend Ovum 2019 in Lima, Peru. Prior to my arrival the Peruvians, after some years of inactivity, had reorganized their Branch. Of great assistance to me, both before and during the meeting, were Branch members Dr Eliana Icochea and Dr Alfredo Condemarin (new Branch President). With their local assistance, I was able to put together a WPSA Student Breakfast Meeting, the day before the start of Ovum 2019.
Students from different parts of the country made their way to Lima for the event. I gave the first talk on students using WPSA for their professional development. I spoke in English, but all my slides had been translated into Spanish by Benjamin Ruiz (Watt Publishing). I also gave the history of WPSA and my personal history of working with poultry and the poultry industry. Dr Icochea spoke next, followed by Dr Condemarin, and then Dr Cobian (Pres of AMEVEA, Peru). The former President of the Mexico Branch, Dr Carlos Lopez Coello, gave an emotional short address to the students about seizing opportunities and making a lifelong career in poultry.
A nice brunch was served to the students and they ate heartily. Some of them had arisen at 2:30 AM and taken a 3 hour bus ride to be present. Even after the Programme ended and all the food was gone, the students lingered and visited with the adult poultry scientists. Those of us in the latter group, all left with full hearts.
We now have our nucleus of student members in the Peru Branch. Two have already contacted me about applying for Travel Grants. I see much promise in the revitalized Branch.
Past President Edir da Silva joined me to staff a WPSA booth at Ovum 2019. Dr Icochea secured a table for WPSA in the booth of the Scientific University of the South. The booth actually backed up to the booth of Gonzaga University in Chincha. All of their students, who had travelled to Lima, attended the WPSA Student Breakfast. So we had guardian angels in those students and their professor.
During the course of the event, I was able to meet with representatives of several Branches and collect their dues. We also met with a contingent from Cuba, who want to reactivate their Branch. In addition to members from South America, I had interactions with the Mexico Branch officers and met the new President of ANECA.
I have been contacted by many student members interested in using WPSA Travel Grants in 2020. Of course, interest in attending WPC - Paris is very high. I am delighted to be working with many of those students and their major professors.
My warmest wishes to you and your families as you celebrate your end of the year holidays.
Dr Francine Bradley, Treasurer
World's Poultry Congress 2020, Paris, France
It is with great pleasure that the French branch of WPSA invites you to attend the 26th World Poultry Congress in Paris, from 16th to 20th August 2020. Our ambition is to prepare an attractive congress for the benefit of a large number of participants from all over the world. We will be giving special consideration to the Mediterranean and African Poultry Networks, by offering them the possibility of holding specific satellite symposia, and we are also planning to organise a symposium with FAO. As usual for a WPC, the programme will include an exhibition for companies within the Congress Centre, and we will offer a Youth programme as well as a Young Scientist programme. We plan to make the scientific programme highly interactive and interdisciplinary.
Registration: In order to insure your participation to this prestigious event, you can now register and benefit from the Early bird registration fees until December 31st, 2019. Please join us in Paris at the Palais des Congress (Porte Maillot) on August 16-20, and meet more than 3000 delegates from over 100 countries.
Submission: The WPC programme will feature object-oriented sessions integrating various approaches to address a complex challenge, and specialized sessions corresponding with the scope of our WPSA working groups. In addition, 11 plenary talks will address major issues for the poultry sector as a whole and will take place all day on Monday August 17 and on the morning of Thursday August 20. You have until December 31st 2019 as the very last day to submit your work for an oral or e-poster presentation. Please consider this as a strong deadline as there will be no date extension.
Renowned speakers from all continents of the world will be involved with WPC2020 and will speak on the following topics:
• Nutrition
• Breeding and Genetics
• Egg Quality
• Poultry Meat Quality
• Reproduction
• Hygiene and Pathology
• Waterfowl
• Poultry Welfare and Management
• Turkeys
• Education and Information
• Physiology
Newly Compiled List of 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 next European Poultry Conference will be held in Valencia, Spain in 2022. A full report for EPC2018 was published in the December 2018 issue of the WPSJ.
The European Federation has numerous conferences planned between now and on into 2021. A list of most of our upcoming conferences may be found on the WPSA Calendar at www.wpsa.com.
News from several European Federation Working Groups are provided below.
WPSA European Working Group News
WG2
The Italian Branch will host the 23rd edition of European Symposium on Poultry Nutrition (ESPN) which will be held at the Palacongressi of Rimini (Italy) from September 20-23, 2021. 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. More details are already available at the symposium website: https://www.espn2021.eu/.
WG5
Poultry Meat Quality
The next ‘XXV European Symposium on the Quality of Poultry Meat’ will be conjointly held with the ‘XIX European Symposium on the Quality of Eggs and Egg Products’ from June 21 to 23, 2021 in Kraków, Poland. Please visit http://www.eggmeat2021.com/ to keep yourself updated. Special reduced registration fees will be available for WPSA members and students. We will look forward to seeing all of you there. Prominent invited speakers from American and European Institutions will address emerging issues on poultry meat and egg production. A new website will be developed and registration information will be provided in the near future.
Asia Pacific Federation
The host for the upcoming 12th APPC was named during the General Meeting, and the China Branch will host that event.
The Asia Pacific Federation is organising a Poultry Nutrition Symposium on 25 & 26 March 2020 in Bangkok, Thailand. The programme is available on the WPSA website.
For more information please contact Dr Nasir Mukhtar, .
WPSA Asian-Pacific Working Group News
A/P WG3
Ratites
There will be Ratite Research Sessions during the upcoming World Poultry Congress in Paris, France from 16-20 August 2020. Please send any suggestions for contributions and topics 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
7th Mediterranean Poulty Summit
The Mediterranean Poultry Network has planning underway for the 7th Mediterranean Poultry Summit that will be held at the University of Cordoba in Cordoba, Spain during Mach 25-27 2020. The website is: www.mpn-wpsa.org. Following are several tentative dates for you to plan for this conference.
Important Dates:
Conference Dates | March 25-27, 2020 | |
Preliminary Notification of Abstract Acceptance | December 1, 2019 | |
Early Bird Registration | December 21, 2019 | |
Final Notification of Abstract Acceptance | December 21, 2019 | |
Full Paper Submission Deadline | December 31, 2019 | |
Registration Deadline | March 25, 2020 |
Carlos Garcés Narro <>
World's Poultry Science Journal
From 2020 the World’s Poultry Science Journal will be published by Taylor & Francis. If you have requested an online subscription as part of your membership, you will receive an email from Taylor & Francis before the end of the year with instructions on how to access WPSJ online from the new website www.tandfonline.com/TWPS. Please ensure that you add '@tandfonline.com' to your safe senders list to ensure these types of emails are not sent to your spam folder or blocked by your service provider. Should you have any questions about your online access please contact ”.
Upcoming articles
Articles in upcoming Journal(s)
- E.A. Awad - Prebiotics supplementation: An effective approach to mitigate the detrimental effects of heat stress in broiler chickens
- T.R. Kannaki - Marek's disease: Time to review the emerging threat in Indian poultry
- J.-J. Chen - Chromolaena odorata as a potential feed additive bioresource to alleviate heat strss in chickens in the humid tropics
- A. Salamon - The double-yolked egg: from the 'miracle of packaging' to nature's 'mistake'
- O. Olgun - Evaluation of dietary presence or use of cadmium in poultry
- M. Tixier-Boichard - From the jungle fowl to highly-performing chickens: are we reaching limits?
Summaries
Prebiotics supplementation: An effective approach to mitigate the detrimental effects of heat stress in broiler chickens
E.A. AWAD, I. ZULKIFLI, S. RAMIAH, E.S. KHALIL and M.E. ABDALLH
As a consequence of global warming and food security issues, heat stress has become an emerging problem. Heat stress causes huge economic losses in the broiler industry that negatively affects the production performance of chickens. Therefore, a variety of strategies have been examined for mitigating the heat stress problem. Among these strategies, the use of prebiotics has received increasing interest due to the beneficial effects of prebiotics on the health and production of heat-stressed broilers. The evidence from existing studies suggests that prebiotics can mitigate the negative effects of heat stress on broiler chickens by benefiting the intestinal microbiota, gut morphology, oxidative status, physiological stress response and subsequently growth performance of broiler chickens. For instance, prebiotics given to heat-stressed broilers at a dose as low as 0.025% have been shown to improve the feed intake, body weight gain and feed efficiency by 7.5, 9.9 and 2.3%, respectively. This review summarises the recent findings on prebiotics as an effective approach to improve the well-being, health and growth performance of broilers under heat stress conditions.
Marek’s disease: Time to review the emerging threat in Indian Poultry
T.R. KANNAKI and V. GOWTHAMAN
Marek’s disease (MD) is one of the re-emerging diseases in Indian poultry. MD outbreaks are reported from different parts of the country in spite of vaccination, causing major economic losses. Flock mortality of 10-40% was observed in vaccinated flocks during outbreaks, although MD is well controlled with vaccination. Almost 100% of the commercial poultry flocks are vaccinated at hatchery level. Bivalent (HVT+SB1 or HVT+301B/1) or monovalent (HVT) vaccines are used in India. In spite of the intensive vaccination practice, outbreaks are being reported from different parts of the world including India. MD virus (MDV) Indian field isolates from different outbreaks during last decade are categorised into virulent (vMDV) and very virulent (vvMDV) pathotypes based on different serotype 1 specific gene sequencing and in vivo pathotyping. The emergence of virulence in MDV is attributed to compromised bio-security, concurrent immunosuppressive diseases and vaccination failure. MD outbreaks in vaccinated flocks of Indian poultry flocks cause annual loss of approximately 4 crore Indian rupees. Country-wide surveillance and reporting of MD outbreaks and further characterization of the Indian field isolate should be taken as a priority. Reviewing the current vaccination strategy, and examining the need for the introduction of more effective vaccines that give better protection against the more virulent strains should be considered with equal importance along with improved bio-security measures, management practices and more effective control of immunosuppressive diseases.
Chromolaena odorata as a potential feed additive bioresource to alleviate heat stress in chickens in the humid tropics
K.A. LARTEY, D.-J. KANG, Q.-H. ZHANG, C.-Q. SHI, F. YANG, H.-Y. LIN, R. GOONERATNE and J.-J. CHEN
Chromolaena odorata contains polyphenols and antioxidant enzymes that activate biology defence mechanisms and stress-sensing transcription factors to prevent oxidative damage and heat stress in chicken. Dietary inclusions of C. odorata leaf meal at 12%, and C. odorata crude flavonoids at 400 mg/kg/d exerted competitive exclusion to enhance gut eubiosis, humoral immunity, hypoglycaemia and metabolic functions, necessary to attenuate oxidative stress in chickens. Ethanol extract of the herbal plant at 25 – 400 µg/mL showed a strong antioxidant capacity in vitro, similar to 10- 80 µg/mL standard ascorbic acid. Chromomoric acid C- 1 from C. odorata methanol extract, at 10 µg also demonstrated anti-inflammatory potential by activating Nrf2 and suppressing NF-κB in a luciferase reporter assay at inhibition capacity (IC50) of 6.9 µM. These biological defence properties of the obnoxious weed have potential to maintain gut microbial homeostasis and gut integrity, enhance antioxidative physiologies for cellular oxidative balance, and mitigate oxidative damage required to alleviate heat stress. The invading nature of the plant in the humid tropics makes it a readily available and cheap bioresource. Hepatotoxic, mutagenic and cytotoxic evaluations suggest the aerial parts of the herbal plant is a safe bioresource for animal nutrition and sub-therapeutical uses.
The double-yolked egg: from the ‘miracle of packaging’ to nature’s ‘mistake’
A. SALAMON and J.P. KENT
Double-yolked (DY) eggs were mostly described in domestic precocial species, and are rarely found in nature. It is estimated that 1-3% of domestic hen and duck eggs are DY.
DY eggs occur when two yolks are encapsulated in a single shell and therefore differ from SY eggs in their external and internal characteristics. In previous decades DY eggs were distinguished from SY eggs only by their external characteristics, and this proved to be wrong, as over 40% of DY eggs have similar external characteristics in terms of size and shape to SY eggs. The internal characteristics of DY eggs constrain their fertility. Yolks in DY eggs tend to be smaller, probably ovulated early and are thus immature, having a significant negative impact on their reproductive potential with lower fertility levels. Further, the presence of a second yolk facilitates additional albumen secretion with the size of each yolk determining the additional amount secreted. This creates a primacy effect, i.e. the first yolk in the oviduct could be fertilized, but the second may not be. The unique yolk and embryo positioning is associated with low hatchability. These factors reduce the reproductive potential of DY egg yolks individually or cumulatively. Thus the above supports the view that DY eggs are nature’s ‘mistake’ and are viewed here as an extreme end of a normal distribution of variation and is unlikely to evolve further in avian species. However, there is still potential for further non-invasive research using DY eggs, especially in studies of factors affecting fertility.
Evaluation of dietary presence or use of cadmium in poultry
O.OLGUN, A.Ö. YILDIZ and A. ŞAHIN
Cadmium is a heavy metal and non-essential for animals. In practice, cadmium toxicity is quite rare in farm animals because the level of cadmium in commercial diets is very low. However, cadmium-contaminated feedstuffs in the diet may cause toxicity. The cadmium, which is absorbed from digestive system, accumulates in the body tissues, primarily kidney and liver, and causes metabolic and physiological inconveniences in the body. Hereby, economic losses occur due to the decrease in feed intake and egg production. It will cause mortality depending on the level and duration of exposure to cadmium. The toxic level of cadmium varies according to the bird species and their ages. Chickens are more sensitive to cadmium toxicity than quails. Lower dietary cadmium doses (<10 mg/kg) have positive effects on production performance and eggshell quality, but higher doses of cadmium (>10 mg/kg) cause economic losses due to worsening productive performance and eggshell quality in poultry. Dietary zinc, selenium, vitamins and plant extracts will help to eliminate the negative consequences of cadmium contamination in feedstuff. However, further studies are needed to determine the toxic level of cadmium, and the possible positive effects of cadmium on performance and product quality when used at lower doses in poultry.
From the jungle fowl to highly-performing chickens: are we reaching limits?
M. TIXIER-BOICHARD
The cumulated effects of domestication and subsequent selection by humans have led to an impressive diversification of the chicken, at the phenotypic level as well as the genome level. In theory, selection may reach a plateau when all favourable alleles have reached fixation. Yet, current data in poultry show that selection response can still take place after 50 generations of selection or more. The mechanisms maintaining selection response in closed populations may involve recombination, mutation and epistatic interactions. Furthermore, the continuous addition of new selection criteria can delay the possible limit associated to single trait selection. Thus, selection response is mainly threatened by inbreeding which occurs as a consequence of a narrow genetic base and/or a poor management of genetic variability within the population. Biological limits are encountered when selection is degrading fitness traits to a point that the survival of individuals is affected. Biological limits induced by extreme performance can be by-passed by adapting the breeding program, introducing new selection criteria, changing the management or developing remedial technologies. Extreme situations affecting bird welfare raise ethical issues. Lameness in broilers or spontaneous bone breakage in layers are painful and one may question whether such pain is justified by the human need for protein consumption. Regulations or market requirements may be set up to limit the performance at a level which is compatible with animal welfare, resulting in a voluntary limit to selection. Furthermore, highly performing animals need a very well controlled environment with high quality diets, which may divert food resources from humans and may not be sustainable. Breeding objectives have to integrate environmental impact and robustness towards the use of alternative feed sources, in addition to production level, product quality, health and welfare status.
Branch News