Presentation is loading. Please wait.

Presentation is loading. Please wait.

ADSA Indianapolis 2001 (1) 2001 A Global Scale for Ranking Dairy Bulls Using Blended National Rankings Rex L. Powell * Paul M. VanRaden Animal Improvement.

Published byChristian Powell Modified over 9 years ago

Similar presentations

Presentation on theme: "ADSA Indianapolis 2001 (1) 2001 A Global Scale for Ranking Dairy Bulls Using Blended National Rankings Rex L. Powell * Paul M. VanRaden Animal Improvement."— Presentation transcript:

1 ADSA Indianapolis 2001 (1) 2001 A Global Scale for Ranking Dairy Bulls Using Blended National Rankings Rex L. Powell * Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD rpowell@aipl.arsusda.gov

2 ADSA Indianapolis 2001 (2)R. L. Powell 2001 R. L. Powell 2001 Multiple Rankings for Bulls Multiple Rankings for Bulls Holstein International 2001

3 ADSA Indianapolis 2001 (3)R. L. Powell 2001 R. L. Powell 2001 Objective Examine procedures for combining Interbull country evaluations into a common global evaluation Develop base knowledge for next step (sub-global)

4 ADSA Indianapolis 2001 (4)R. L. Powell 2001 R. L. Powell 2001 Data  May 2001 Interbull evaluations  27 Holstein population scales  65,472 bulls with protein data  24 million daughters

5 ADSA Indianapolis 2001 (5)R. L. Powell 2001 R. L. Powell 2001 Numbers of Daughters by Country and Proportion of Global Total CountryDaughtersProportion United States 4,148,875.17 Germany 3,635,369.15 France 2,940,220.12 New Zealand2,523,259.11 Netherlands2,213,830.09 Canada1,122,599.05 Great Britain1,113,042.05 Australia1,083,235.05 Others5,025,596.21 Total23,806,025 1.00

6 ADSA Indianapolis 2001 (6)R. L. Powell 2001 R. L. Powell 2001 Methods  Evaluations standardized (x-mn)/sd  Global as bull mean, weighted by  Population size  Unweighted  Inverse of population size  Impact on top 100 determined

7 ADSA Indianapolis 2001 (7)R. L. Powell 2001 R. L. Powell 2001 Relation of National & Global Scale Within Birth Year CountryCorr(N,G) Common top 100 Mean r g SD r g Australia.96154.80.0287 Canada.99177.89.0376 France.99482.88.0237 Germany.991 76.87.0331 Netherlands.995 81.90.0382 New Zealand.961 56.79.0291 United States.988 78.89.0409 Corr(N,G) = correlation of national with global scale r g = correlation of national scale with other national scales

8 ADSA Indianapolis 2001 (8)R. L. Powell 2001 R. L. Powell 2001 Population Size Unweighted Inverse Weighting Population Size.9994.9989 Unweighted97.9997 Inverse Weighting 9597 Relationships of Global Scales Correlations & Common Top 100

9 ADSA Indianapolis 2001 (9)R. L. Powell 2001 R. L. Powell 2001 Conclusions  Global evaluations highly correlated with national evaluations  Variation between national and global top 100 lists related to mean genetic correlation  Global evaluations robust to weighting procedures (r ~ 1.0)

Download ppt "ADSA Indianapolis 2001 (1) 2001 A Global Scale for Ranking Dairy Bulls Using Blended National Rankings Rex L. Powell * Paul M. VanRaden Animal Improvement."

Similar presentations

2001 PLACE, DATE (1) Cow Fertility and Effect on Longevity PAUL VANRADEN Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville,

2001 PLACE, DATE (1) Cow Fertility and Effect on Longevity PAUL VANRADEN Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville,
2002 Paul M. VanRaden and Ashley H. Sanders Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD

2002 Paul M. VanRaden and Ashley H. Sanders Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD
2006 J.B. Cole,* G.R. Wiggans, and P.M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD

2006 J.B. Cole,* G.R. Wiggans, and P.M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD
ADSA 2002 (HDN-P1) 2002 Comparison of occurrence and yields of daughters of progeny-test and proven bulls in artificial insemination and natural- service.

ADSA 2002 (HDN-P1) 2002 Comparison of occurrence and yields of daughters of progeny-test and proven bulls in artificial insemination and natural- service.
2001 ADSA annual meeting, July 2001 (1) Timeliness of progeny-testing through AI and percentage of bulls returned to service (abstract 1020) H.D. NORMAN,*

2001 ADSA annual meeting, July 2001 (1) Timeliness of progeny-testing through AI and percentage of bulls returned to service (abstract 1020) H.D. NORMAN,*
2002 Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Selection of dairy.

2002 Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Selection of dairy.
2004 R.L. Powell,* A.H. Sanders, and H.D. Norman Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD

2004 R.L. Powell,* A.H. Sanders, and H.D. Norman Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD
2003 Rex L. Powell Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Interbull as a Tool.

2003 Rex L. Powell Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Interbull as a Tool.
Impacts of inclusion of foreign data in genomic evaluation of dairy cattle K. M. Olson 1, P. M. VanRaden 2, D. J. Null 2, and M. E. Tooker 2 1 National.

Impacts of inclusion of foreign data in genomic evaluation of dairy cattle K. M. Olson 1, P. M. VanRaden 2, D. J. Null 2, and M. E. Tooker 2 1 National.
2001 Interbull, August 2001 (1) Usefulness of international dairy bull evaluations Rex L. Powell Animal Improvement Programs Laboratory Agricultural Research.

2001 Interbull, August 2001 (1) Usefulness of international dairy bull evaluations Rex L. Powell Animal Improvement Programs Laboratory Agricultural Research.
2004 R. L. Powell, A. H. Sanders, and H. D. Norman Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD

2004 R. L. Powell, A. H. Sanders, and H. D. Norman Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD
2007 ADSA 2007 (1)H.D. Norman Effect of service sire and cow sire on gestation length H.D. Norman,* J.R. Wright, P.M. VanRaden, and J.B. Cole Animal Improvement.

2007 ADSA 2007 (1)H.D. Norman Effect of service sire and cow sire on gestation length H.D. Norman,* J.R. Wright, P.M. VanRaden, and J.B. Cole Animal Improvement.
20012003 Interbull Technical Workshop, March 2-3 (1) Rex L. Powell and Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service,

Interbull Technical Workshop, March 2-3 (1) Rex L. Powell and Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service,
Performance of Holsteins that originated from embryo transfer or twin births H.D. Norman, J.R. Wright* and R.L. Powell Animal Improvement Programs Laboratory,

Performance of Holsteins that originated from embryo transfer or twin births H.D. Norman, J.R. Wright* and R.L. Powell Animal Improvement Programs Laboratory,
Comparison of Holstein service-sire fertility for heifer and cow breedings with conventional and sexed semen H. D. Norman*, J. L. Hutchison, and P. M.

Comparison of Holstein service-sire fertility for heifer and cow breedings with conventional and sexed semen H. D. Norman*, J. L. Hutchison, and P. M.
2002 ADSA 2002 (HDN-1) H.D. NORMAN* ( 301-504-8334 ), R.H. MILLER, P.M. V AN RADEN, and J.R. WRIGHT Animal Improvement Programs.

2002 ADSA 2002 (HDN-1) H.D. NORMAN* ( ), R.H. MILLER, P.M. V AN RADEN, and J.R. WRIGHT Animal Improvement Programs.
2006 Paul VanRaden Animal Improvement Programs Laboratory, USDA Agricultural Research Service, Beltsville, MD, USA Fertility Trait.

2006 Paul VanRaden Animal Improvement Programs Laboratory, USDA Agricultural Research Service, Beltsville, MD, USA Fertility Trait.
2003 G.R. Wiggans,* P.M. VanRaden, and J.L. Edwards Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD

2003 G.R. Wiggans,* P.M. VanRaden, and J.L. Edwards Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD
2007 Paul VanRaden and Mel Tooker Animal Improvement Programs Laboratory, USDA Agricultural Research Service, Beltsville, MD, USA

2007 Paul VanRaden and Mel Tooker Animal Improvement Programs Laboratory, USDA Agricultural Research Service, Beltsville, MD, USA
AFGC Convention 2004 (1) 2004 Possibilities for Improving Dairy Cattle Performance Dr. H. Duane Norman Animal Improvement Programs Laboratory Agricultural.

AFGC Convention 2004 (1) 2004 Possibilities for Improving Dairy Cattle Performance Dr. H. Duane Norman Animal Improvement Programs Laboratory Agricultural.

Similar presentations

Ads by Google