1 / 17

Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries

Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries. Longevity Aspects Studied. Genetic trends (correlation with birth year) Correlations of longevity with other traits on each nation’s scale Overall and adjusted for birth year Adjustment for yield traits. Data.

zane-neal
Download Presentation

Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries

  2. Longevity Aspects Studied • Genetic trends (correlation with birth year) • Correlations of longevity with other traits on each nation’s scale • Overall and adjusted for birth year • Adjustment for yield traits

  3. Data • Bulls born 1985-1994 in MACE longevity file (van der Linde and de Jong, 2003) • Only data on “home country” scale (country with the most daughters) • Yield, SCS, and conformation evaluations from Interbull (Nov. 2002) • Some scales reversed to make positive always desirable for longevity and undesirable for SCS

  4. Correlations of Direct Longevity with Somatic Cell Score and Type

  5. Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  6. Australia 0.57 France 0.26 Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  7. Australia 0.75 France 0.96 Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  8. Australia 0.75 Canada 0.88 Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  9. Australia 0.40 0.23 0.46 France 0.27 0.11 0.18 Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  10. Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  11. Correlations of Direct Longevity with Birth Year, Combined Longevity, and Yield

  12. Correlations of Direct Longevity with Combined Longevity and Yield Within Birth Year

  13. Correlations of Direct Longevity with Combined Longevity and Yield Within Birth Year

  14. Australia 0.23 0.17 0.28 France 0.16 0.02 0.03 Correlations of Direct Longevity with Combined Longevity and Yield Within Birth Year

  15. Correlations Between Milk Yield and True Longevity Estimated at Different Times

  16. Conclusions • Correlations of longevity with SCS and conformation traits were fairly uniform across countries • Components of fitness vary across time and location • Yield component of functional and true longevity not always as advertised

  17. Conclusions • Correlations of longevity with SCS and conformation traits were fairly uniform across countries • Components of fitness vary across time and location • Yield component of functional and true longevity not always as advertised • Use unadjusted • Apply adjustments at Interbull

More Related