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Preface

About WCGALP

The World Congress of Genetics Applied to Livestock Production is the premier conference for researchers and professionals involved in genetic improvement of domestic animals, including livestock, poultry, horses, companion animals, and farmed aquatic animals and insects. Held every 4 years, WCGALP is also known as the ‘World Cup’ or ‘Olympics’ of animal breeding and genetics. WCGALP is strongly committed to bring science and industry of all continents together in formal sessions and in informal networks to share and learn about advances in the field and to network with colleagues.

History of WCGALP

The 2026 WCGALP is the 13th conference of its kind. WCGALP started in the 1970s in Madrid, Spain (1974 and 1982), after which it moved to a 4-year schedule with conferences in Lincoln, USA (1986), Edinburgh, UK (1990), Guelph, Canada (1994), Armidale, Australia (1998), Montpellier, France (2002), Belo Horizonte, Brazil (2006), Leipzig, Germany (2010), Vancouver, Canada (2014), Auckland, New Zealand (2018), and Rotterdam, the Netherlands (2022). For additional details on the history and evolution of WCGALP and its leadership and authorship, please see the 2022 WCGALP proceedings paper by Alison Van Eenennaam and Suzanne Hermesch: History and author analysis of the World Congresses on Genetics Applied to Livestock Production.

Who attends WCGALP?

The World Congress on Genetics Applied to Livestock Production (WCGALP) is the premier international conference for livestock and animal genetics. Participants are specialists and students in the field of animal breeding and genetics and genomics and related fields. Because of the impact of developments in animal breeding and genetics, WCGALP is also attended by geneticists from the fields of plant breeding and human genetics, who also contribute information that is relevant for animal breeding and genetics. During the congress, participants share knowledge and interact on innovations in the area of genetics applied to domestic animals, including livestock, poultry, horses, companion animals, and farmed aquatic animals and insects.

Scope of WCGALP 2026

The three universities that co-organized WCGALP 2026 with the American Society of Animal Science, have a strong history in animal breeding and genetics. Iowa State University was the academic home of Dr. Jay Lush, who is known as the ‘father of animal breeding’, as well as of Dr. Lenoy Hazel, who is best known for the selection index. Together, they trained many graduate students from across the globe that formed the 2nd generation of animal breeders in the decades after WWII, including Drs. Charles Henderson and Charlie Smith. Many of their international students went back to their home countries to establish animal breeding programs, as well as animal breeding research, development, and education programs. Dr. Jay Lush obtained his PhD from the University of Wisconsin, which was also the emeritus academic home of Dr. Sewall Wright and the academic home of Dr. James Crow, who, among others, founded the fields of quantitative and population geneticists, from which the field of animal breeding emerged as an applied science. The University of California Davis was the academic home of Dr. Eric Bradford, a famous sheep breeder, and Dr. Hans Albanap, who bred the chicken that was the first whole-genome-sequenced domestic animal. For additional information on the “Pedigree of Animal Breeders”, please visit https://www.animalgenome.org/lush/ and add information on your own academic pedigree. WCGALP 2026 celebrated this history, as well as the 25-year anniversary of the 2001 Meuwissen, Hayes, and Goddard paper on genomic prediction and selection, which has been the foundation of many recent advances in our field, as well as in the fields of plant breeding and human genetics.

However, more importantly, WCGALP 2026 focused on how animal breeding and genetics can contribute to solving current and future global challenges, with an emphasis on sustainable production of high-quality proteins from domestic animals for a growing world population in a manner that meets changing consumer and societal demands and needs, in the face of a changing climate. While our field and WCGALP has traditionally focused on livestock, including cattle, pigs, sheep, goats, and poultry, WCGALP 2026 also emphasized alternate domesticated sources of high-quality animal proteins, including farmed aquatic animals and insects, as well as other ways that domesticated animals can benefit the human race, including as companion animals and biomedical models. WCGALP 2026 achieved these goals through stimulating plenary scientific sessions with world-class speakers and specialized parallel scientific sessions, either by discipline or topic, or by species, as well as interactive poster sessions. In addition, by organizing so-called ‘speaker duels’, one of the aims of WCGALP 2026 was to stimulate discussion on important and sometimes controversial issues in our field, including the role of livestock in future food production systems, the role of technology in advancing animal production in developing countries, the use of ‘big data’ and AI, and how animal breeding can contribute to the One Health challenge of an ever-changing pathogenic environment that increasingly affects both animal and human health. This conference provided information to inform policy regarding animal breeding and genetic improvement in livestock. By creating a welcoming atmosphere with ample time for interaction and networking, combined with organized field trips, WCGALP 2026 allowed all participants to achieve their own set goals, while experiencing the friendly culture of the Midwest or Heartland of the United States and having a great time.

Executive Board of WCGALP 2026

Jack Dekkers Iowa State University
Alison Van Eenennaam University of California, Davis
Guilherme Rosa University of Wisconsin–Madison
James Sartin American Society of Animal Science
July 12, 2026

The WCGALP 2026 Executive Board gratefully acknowledges the contributions of the following people to these proceedings

WCGALP Permanent International Committee

Ewa Sell-Kubiak (chair) Poland Alessandra Stella Italy
Filippo Miglior (secretary) Canada Yutaka Masuda Japan
Lusheng Huang China Heather Huson USA
Alexander Kahi Kenya Pamela Alexandre Australia
Maria Wurzinger Austria/USA Jeremie van der Plas Netherlands
Jorn Bennewitz Germany Androniki Psifidi UK
Gopal Gowane India Daniela Lourenco USA
Donagh Berry Ireland Helene Gilbert France

American Society of Animal Science

James Sartin Justin Bartlett Melissa Burnett Debbie Zargorski Meghan Wulster-Radcliffe

WCGALP 2026 Scientific Advisory Committee

Jack Dekkers (chair) USA Peter Amer New Zealand
Julius van der Werf Australia Suzanne Rowe New Zealand
Suzanne Hermesch Australia Gareth Difford Norway
Marcos Vinicius Barbosa da Silva Brazil Ewa Sell-Kubiak Poland
Christine Baes Canada Jana Obsteter Slovenia
Filippo Miglior Canada Linky Makgahlela South Africa
Xiangdong Ding China Noelia Ibanez Spain
Bernt Gulbrantsen Denmark Anna Wallenbeck Sweden
Helene Gilbert France Andrea Wilson UK
Christa Kuehn Germany Androniki Psifidi UK
Jorn Bennewitz Germany Alison Van Eenennaam USA
Gopal Gowane India Daniella Lourenco USA
Donagh Berry Ireland Guilherme Rosa USA
Alessandra Stella Italy Hassan Khatib USA
Yutaka Masuda Japan Heather Huson USA
Pascal Duenk Netherlands Juan Steibel USA
Roel Veerkamp Netherlands Luiz Brito USA
Maria Wurtzinger USA    

WCGALP 2026 Local Co-chairs

Iowa State University University of California, Davis University of Wisconsin–Madison
Ania Wolc Alison Vaneenennaam Brian Kirkpatrick
Austin Putz Andrea Schreier Francisco Penagaricano
Chris Tuggle Guilllermo Martinez Boggio Guilherme Rosa
Gustavo Guttierez Hao Cheng Hassan Khatib
James Koltes Huaijun Zhou Joao Dorea
Jennifer Bundy Kent Weigel  
Juan Steibel Lauren Baker  
Maria Wurzinger    
Randy Culbertson    

WCGALP 2026 Scientific Session Co-chairs and Reviewers

Alesio Cechinato Dorte Wittenburg Jorn Bennewitz Ruidong Xiang
Alessandra Stella Eileen Wall Jose Yanez Sam Clark
Amanda Chamberlain Elisabetta Guiffra Julius van der Werf Sammy Aggrey
Ana Granados Esther Ellen Karen Marshall Shuhong Zhao
Anderson Alves Ewa Sell Kubiak Keiichi Inoue Simon Turner
Andrea Wilson Fany Blanc Lars Ronnegard Sophie Eaglen
Andreson Alves Filippo Miglior Linky Makgahlela Susanne Eriksson
Andrew Hess Gabor Maszaros Luis Varona Susanne Hermesch
Androniki Psifidi Gareth Difford Luiz Brito Suzanne Rowe
Angela Canovas Georgios Banos Maci Mueller Ted Kalbfleisch
Aniek Bouwman Gustavo de los Campos Marina Fortes Tiago Bresollin
Anne Sonesson Haipeng Yu Mario Calus Tom Wishart
Ben Reading Harvey Blackburn Mark Knauer Toni Reverter
Ben Rosen Heather Huson Matt Littlejohn Torsten Pook
Bob Weaber Hélène Gilbert Matt Spangler Tricia Johnson
Brian Davis Hélène Soyeurt Mirte Bosse Troy Rowan
Caeli Richardson Henk Bovenhuis Naomi Duijvestein Wen Huang
Cedric Gondro Hubert Pausch Noelia Ibáñez Escriche Wendy Rauw
Cheryl Quinton Ino Čurik Ole Madsen Xiangdong Ding
Christa Kuehn Jan Lassen Oscar Gonzalez-Recio Xiaolei Liu
Christian Maltecca Jana Obsteter Pascal Duenk YuLong Yin
Craig Lewis Jicai Jiang Paul Boettcher Yutaku Masuda
Daniela Lourenco Jo Newton Ricardo PongWong Yvonne Wientjes
Donagh Berry Joanna Szyda Roel Veerkamp Zexi Cai
      Zulma Vitezica

Additional Technical Reviewers

Abdulraheem Musa

Adrian Lopez-Catalina

Andrea Nuñez

Annika Bunz

Arianna Manunza

Bayode Makanjuola

Birgit Fürst-Waltl

Blessing Olabosoye

Britt de Klerk

Caitlin Sliger

Coralie Machefert

Danielle Ellinghuysen

Dirk van Winden

Eduard Murani

Elandri de Bruyn

Elena Facchini

Emmanuel Okoli Odah

Emna Rekik

Gabor Meszaros

Gabriela ‘Ella’ Dodd

Henry Reyer

Hugo Toledo

Isaac Berg

Issabelle Ampofo

Jo-Anne Harper

Johann Sölkner

Laurens van der Giessen

Marco Bink

Max Rotdschild

Mehmet Kizilaslan,

Michael Aldridge

Mina Shumaly

Nicholas Jacob

Pamela Alexandre

Paulino Perez

Rodríguez

Phillip Gurman

Rebecca Finchum

Ricarda Jahnel

Samla Cunha

Sara-Joe Burn

Shweta Sahoo

Sydney Heins

Xiaohan Jiang

Ye Bi

Yuni Resti

Style Editors

Joel Van Eenennaam Renaly Dorea

Iowa State University Digital Press

Scott McCleary Harrison Inefuku