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== Official GEBV test rules:

 * GEBV validation should be performed the first time a country joins Interbull genomic evaluations (or simply validations) and every two years afterwards. Then validation is needed whenever there is a major change either in the genomic evaluation or in the conventional evaluation. Additionally, if there is a major change in the reference population a new validation should be required.
 * The expected regression coefficient for the validation model 1 should be within the confidence interval of plus minus two times the standard error (t test). For very large reference populations, however, the SE becomes too small and makes the above criteria too restrictive. Therefore, it is proposed a “biological confidence interval” of ±0.1.
 * Following decision by the ICAR board, all countries that want to validate national GEBVs need to participate in the GEBV validation test starting on April 12, 2012, for all production traits (milk, fat and protein yields).
 * Validation should only be noted as failed if regression coefficients are significantly lower than the expected value (=over evaluation of young bulls).
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Official Results from the GEBV test (April 2014):

== Official GEBV test rules:

  • GEBV validation should be performed the first time a country joins Interbull genomic evaluations (or simply validations) and every two years afterwards. Then validation is needed whenever there is a major change either in the genomic evaluation or in the conventional evaluation. Additionally, if there is a major change in the reference population a new validation should be required.
  • The expected regression coefficient for the validation model 1 should be within the confidence interval of plus minus two times the standard error (t test). For very large reference populations, however, the SE becomes too small and makes the above criteria too restrictive. Therefore, it is proposed a “biological confidence interval” of ±0.1.
  • Following decision by the ICAR board, all countries that want to validate national GEBVs need to participate in the GEBV validation test starting on April 12, 2012, for all production traits (milk, fat and protein yields).
  • Validation should only be noted as failed if regression coefficients are significantly lower than the expected value (=over evaluation of young bulls).

The following populations have succeeded to provide the information requested and passed the GEBV test (rows underlined indicate that the last test is older than 2 years).

Population

Breed

Date of latest validation

mil

fat

pro

Organization providing data

AUS

HOL

201402

Y

Y

Y

Australian Dairy Herd Improvement Scheme (ADHIS)

AUS

JER

201302

Y

Y

Australian Dairy Herd Improvement Scheme (ADHIS)

BEL

HOL

201402

Y

Y

Y

Faculté Universitaire des Sciences Agronomiques - Groupe de Génétique et Amélioration Animales

CAN

BSW

201302

Y

Y

Y

Canadian Dairy Network (CDN)

CAN

HOL

201302

Y

Y

Y

Canadian Dairy Network (CDN)

CAN

JER

201302

Y

Y

Y

Canadian Dairy Network (CDN)

CAN

RDC

201302

Y

Y

Y

Canadian Dairy Network (CDN)

CHE

BSW

201207

Y

Y

Y

Qualitas AG

CHE

BSWi

201307

Y

Y

Y

Intergenomics

CHE

HOL

201302

Y

Qualitas AG

CHE

RHO

201302

Y

Y

Y

Qualitas AG

DEA

BSW

201402

Y

Y

Y

Bavarian State Research Center for Agriculture (LfL)

DEA

BSWi

201307

Y

Y

Y

Intergenomics

DEU

HOL

201106

Y

Y

Y

Vereinigte Informationssysteme Tierhaltung w.V (vit)

DEA

SIM

201401

Y

Y

Y

Bavarian State Research Center for Agriculture (LfL)

DFS

HOL

201205

Y

Y

Y

Nordic Genetic evaluation (NAV)

DFS

JER

201205

Y

Y

Y

Nordic Genetic evaluation (NAV)

DFS

RDC

201205

Y

Y

Y

Nordic Genetic evaluation (NAV)

ESP

HOL

201402

Y

Y

Y

Confederation of Spanish Holstein Associations (CONAFE)

FRA

BSWi

201307

Y

Y

Y

Intergenomics

FRA

HOL

201108

Y

Y

Y

France Génétique Elevage

FRA

MON

201402

Y

Y

Y

France Génétique Elevage

GBR

HOL

201111

Y

Y

Y

Scotland’s Rural College (SRUC)

IRL

HOL

201108

Y

Y

Y

Irish Cattle Breeding Federation

ITA

BSWi

201307

Y

Y

Y

Intergenomics

ITA

HOL

201205

Y

Y

Y

Associazione Nazionale Allevatori Frisona Italiana (ANAFI)

ITA

SIM

201205

Y

Y

Y

Associazione Nazionale Allevatori Pezzata Rossa Italiana (ANAPRI)

JPN

HOL

201205

Y

Y

Y

National Livestock Breeding Centre

NLD

HOL

201211

Y

Y

Y

Genetic Evaluation Sires (GES)

POL

HOL

201307

Y

Y

Y

Polish Federation of Cattle Breeders and Dairy Farmers

SVN

BSWi

201307

Y

Y

Y

Intergenomics

USA

BSW

201211

Y

Animal Improvement Programs Laboratory (AIPL-USDA)

USA

BSWi

201307

Y

Y

Y

Intergenomics

USA

HOL

201302

Y

Y

Y

Animal Improvement Programs Laboratory (AIPL-USDA)

USA

JER

201211

Y

Animal Improvement Programs Laboratory (AIPL-USDA)

public/official_GEBVtest (last edited 2024-02-16 09:25:29 by Valentina)