correlation of longevity evaluation with other trait evaluations from 14 countries n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries PowerPoint Presentation
Download Presentation
Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries

Loading in 2 Seconds...

play fullscreen
1 / 17

Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries - PowerPoint PPT Presentation


  • 85 Views
  • Uploaded on

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.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Correlation of Longevity Evaluation With Other Trait Evaluations From 14 Countries' - zane-neal


Download Now 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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
longevity aspects studied
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
slide3
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
correlations of direct longevity with birth year combined longevity and yield4

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
correlations of direct longevity with combined longevity and yield within birth year2

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
conclusions
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
conclusions1
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