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- 2025 Interbull Meeting
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First published 01 February 2025
The 2025 Interbull Annual Meeting will be held in conjunction with ADSA in Louisville, KY, USA.
Interbull Business Meetings, Open Meetings and joint Sessions will be organised on Saturday 21, Sunday 22 and Monday 23 June 2025. The Interbull Dinner will take place on Saturday 21 June.
Participation to the meeting and dinner requires a separate paid registration fee. Information on how to register, costs and hotel booking are all available through the ADSA website
Specific information about the Interbull meeting will be made available on this page in due time.
Useful dates:
Abstract submissions open: 31 January 2025
Abstract Submission closes: 08 April 2025
Final Scientific Program Available: 08 May 2025
Full presentation submission: 18 June 2025
Paper submission to Interbull Bulletin: 31 July 2025
Interbull Open Meeting - Call for Abstracts
The Open Meeting aims to be an inclusive space to share ideas, and the latest advances, research and innovations in genetic and genomic evaluations for beef and dairy. We aim to accept manuscripts that clearly address the topics presented in the call for abstracts, and encourage work in progress presentations and/or cutting edge research in these areas.
The overall theme for the Interbull Open Meetings is: "Innovations in national and international genetic and genomic evaluations". Authors are invited to submit abstracts within this overarching theme that specifically address the following topics for dairy and beef:
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Big data for the benefit of genetic and genomic evaluation
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Meta-analytical methods in animal genetic and genomic evaluation.
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Experience with single-step evaluation.
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Implementing new traits in genetic and genomic evaluation systems.
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Cross-breed genetic and genomic evaluations
- Sustainability, efficiency, methane emission and adaptation/resilience.
- The effect of selective genotyping on calves
Submit your abstract through the Interbull online submission form .
The meetings below are closed meetings by invitation only.
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Thursday 19 June |
08:30 to 16:30 |
Interbull Technical Committee |
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19.00- 22.00 |
Dinner: Proof on Main |
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Friday 20 June |
10:30 to 16:30 |
Interbull Steering Committee |
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19.00-22.00 |
Dinner: TBC |
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Sunday 22 June |
17:15 to 18:00 |
Interbull Technical Committee |
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Tuesday 24 June |
08:00 to 10:00 |
Interbull Steering Committee |
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Technical and Steering Committees are administrative meetings restricted to the respective members. The Business Meeting is public and is dedicated to discuss operational and political decisions of the Steering Committee with participating organizations; Open Meetings are dedicated to scientific reports.
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There are two Interbull Business Meetings.
Business Meeting 1 is scheduled for Saturday 21 June 11.00 - 12.30
Business Meeting 2 is scheduled for Sunday 22 June 13.30-15.00
Both will be held in the Kentucky Ballroom at the Marriott Downtown Hotel, Louisville
The Interbull Open Meeting will take place on Saturday 21 and Sunday 22 June 2025. Registration is required to attend.
There will be an Interbull Dinner on Saturday 21 June at the Brown Hotel. This requires a separate registration to attend. All are welcome.
The programme for the Interbull Open Meeting is available on this page. The programme is separated by date, but you can download the full programme for both days in either section.
Register for the Interbull Open Meeting and Dinner on the ADSA Event Pages
Download Full Programme (.pdf)
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Saturday 21 June |
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08.30-10.30 Kentucky Ballroom E Session 1- Implementing New Traits Chair: Filippo Miglior |
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8:30 |
Welcome |
Dr Matthew Shaffer, Interbull Steering Committee Chair, and ADSA President Dr. Mike VandeHaar |
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1 |
8:40 |
A. Nazari |
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2 |
8:55 |
A.Fleming |
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3 |
9:10 |
M. Axford |
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4 |
9:25 |
X. Wu |
Reliability Assessment of Single-Milking Fat and Protein Percentages in Dairy Cattle |
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5 |
9:40 |
A. Kudinov |
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6 |
9:55 |
F. Galluzzo |
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7 |
10:10 |
B. Cuyabano |
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10.30-11.00
Coffee break
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11.00 – 12.30 Business Meeting I (All Welcome) Kentucky Ballroom E |
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12.30 - 13.30 Lunch
Kentucky Ballroom
A-D
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13.30- 15.00 Session II - Experience with Single Step I Chair: Urs Schnyder Kentucky Ballroom E |
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1 |
13:30 |
K. Stachowicz |
Implementation of single-step genetic evaluation in Poland
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2 |
13:45 |
K. Wijnrocx |
Implementation of a single-step genomic evaluation system for dairy cattle in Wallonia, Belgium |
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3 |
14:00 |
J. Heise |
Introduction of Single Step genomic evaluations in German Holsteins |
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4 |
14:15 |
S. Id-Lahoucine |
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5 |
14:30 |
I. Ampofo |
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6 |
14:45 |
K. Byskov |
Implementation of single-step genomic BLUP in the Nordic evaluation for beef cattle |
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15.00 - 15.30 Coffee Break |
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15.30-17.00 Session III - Experience with Single Step II Chair: Ezequiel Nicolazzi Kentucky Ballroom E |
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1 |
15:30 |
S. Widmer |
Single-step genetic evaluation for claw health traits in Switzerland |
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2 |
15:45 |
Z. Liu |
Optimisation of the German single-step SNP BLUP model for calf fitness in Holstein |
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3 |
16:00 |
D. Słomian |
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4 |
16:15 |
H. Eding |
Integration of single step DGV in conventional genetic evaluations using DGV-PBLUP |
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5 |
16:30 |
A. Legarra |
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6 |
16:45 |
H. Gao |
Comparing methods for approximating reliabilities in large-scale single-step genomic evaluations |
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19.00 - 22.00 Interbull Dinner The Brown Hotel, Gallery Ballroom- 16th Floor. (Registration required) |
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Download Full Programme (.pdf)
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Sunday 22 June |
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08.30-10.30 Session IV - Meta-analysis & Big Data Chair: Daniele Vicario Kentucky Ballroom E |
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1 |
8:30 |
M. Axford |
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2 |
8:45 |
P. Stratz |
Integration of MACE breeding values into Swiss multi-trait test-day model evaluation |
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3 |
9:00 |
B. Makanjuola |
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4 |
9:15 |
A. Rossoni |
Improve of Stability of Test-Day Repeatability Model for Production Traits in Italian Brown Swiss |
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5 |
9:30 |
T. McWhorter |
Foundational Review of U.S. Female Fertility Trait Evaluations |
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6 |
9:45 |
H. Zhang |
Genetic analysis provides insight into estrus expression in Holstein cows |
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7 |
10:15 |
J. Mugambe |
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10.30-11.00 Coffee Break |
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11.00-12.30 Session V Efficiency & Sustainability I : Methane Evaluations Chair: Jan-Thijs van Kaam Kentucky Ballroom E |
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1 |
11:00 |
Raphael Mrode |
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2 |
11:15 |
J. Vandenplas |
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3 |
11:30 |
R.Stephansen |
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4 |
11:45 |
G. de Jong |
Sustainable dairy breeding: reducing methane emissions in the Netherlands and Flanders |
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5 |
12:00 |
N. Gengler |
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6 |
12:15 |
Y. Wang |
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12.30-13.30 Lunch Kentucky Ballroom A-D |
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13.30-15.00 Business Meeting II (All Welcome) Kentucky Ballroom E |
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15.00-15.30 Coffee Break |
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15.30-17.00 Session VI Efficiency & Sustainability II Chair: Marija Klopcic |
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1 |
15:30 |
M. van Pelt |
Genetic evaluation for longevity of dairy cattle in the Netherlands |
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2 |
15:45 |
B. Van Doormaal |
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3 |
16:00 |
J. Graham |
Quantifying the use of and the genetic progress from advanced mating strategies in US dairy herds |
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4 |
16:15 |
J.T. van Kaam |
Expanded Genetic Evaluation of Heat Tolerance in Italian Holsteins |
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5 |
16:30 |
R. Stephansen |
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6 |
16:45 |
R. Bonifazi |
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17:00 |
M. Shaffer |
Close |
There are two joint Interbull-ADSA sessions scheduled for Monday 23 June:
Breeding and Genetics Symposium: Joint ADSA-Interbull Session—Management of Genetic Diversity for Future-Proofing Dairy Cattle Breeding
Speakers:
| Christian Maltecca, North Carolina State University |
Genetic resilience and the dynamics of inbreeding and diversity in dairy breeding |
| Heather Huson, Cornell University | |
| Nicolo Macciotta, Universita Di Sassari |
Genomic-versus pedigree-based inbreeding: Two sides of the same coin |
| Christine Baes, University of Guelph |
Managing genetic diversity: Strategies for sustainable livestock improvement |
| Olivia Mapholi, University of South Africa |
Breeding and Genetics Symposium: Joint ADSA-Interbull Session—Creating Carbon-Friendly Cows and Leveraging Omics to Improve the Sustainability of Dairy Production.
| Francisco Peñagaricano, University of Wisconsin–Madison | |
| Bjorg Heringstad, Norwegian University of Life Sciences |
Sustainable breeding for feed-efficient cows with lower methane emissions |
| Francesca Malchiodi, Semex |
Development of a greenhouse gas index to reduce enteric emissions in Holsteins |
| Jocelyn Johnson, STgenetics |
More information on ADSA programming can be found on the ADSA 2025 website
Interbull Bulletin
The Interbull Bulletin has become a well known reference for genetic evaluation of bovine cattle worldwide. It contains the state-of-the-art in genetic evaluation methods, as well as the most recent information on national and international implementations.
Participants in the Open Meeting are expected to submit paper (up to 10 pages), based on their presentation to the Interbull Bulletin by 31 July 2025 , for publication in November 2025.
Papers presented at the joint ADSA Interbull sessions are not submitted to the Interbull Bulletin.
