Dear Sonal,
If we assume
the sire variance component represents 0.25 additive genetic variance
the dam variance component represents 0.25 additive genetic variance
plus maternal variance
Then genetic variance = 4 * sire
maternal dam - sire
phenotypic sire + dam + Residual
so pin file should be
F direct 1*4. # becomes component 4
F maternal 1*-1. + 2 # becomes component 5
F Phen 1 + 2 + 3 # becomes component 6
H herit 4 6
Arthur
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> Date: Thu, 14 Dec 2000 21:40:40 -0800
> From: "Nagda, Sonal" <S.NAGDA@CGIAR.ORG>
> To: asreml@chiswick.anprod.csiro.au
> MIME-version: 1.0
>
> Dear all,
> I have been using ASREML recently. Please could you let me know
> how I should code (in the pin file) to get the heritabilities if I had the
> following output.
>
>
> Source Model terms Gamma Component Comp/SE % C
> sire 5338 74 0.194259E-01 0.665780E-01 0.75 0 P
>
> dam 12682 358 0.424977 1.45651 5.13 0 P
>
> Variance 700 688 1.00000 3.42727 12.83 0 P
>
>
> Analysis of Variance DF F-incr F-adj StndErrDiff
> 12 mu 1 11350.16 0.33
> 5 year 5 46.07 23.51
> 6 sex 1 9.66 6.19 0.1623
> 7 agewean 1 63.84 58.59
> 8 damage 1 30.44 98.43
> 10 damagsq 1 78.41 83.23
> 4 sirebrd 1 6.64 5.54 0.1755
> 2 dambrd 1 2.91 2.91 0.2664
>
> Thanks
>
> Sonal Nagda
>
> Biometrics Unit
> International Livestock Research Institute
> P.O. Box 30709
> NAIROBI, Kenya
> Tel: 254-2-630743
> Fax: 254-2-631499
> Email: s.nagda@cgiar.org
> Web: http://www.cgiar.org/ilri
>
> FUTURE HARVEST
> ILRI is one of 16 international agricultural research institutes
> supported by the Consultative Group on International Agricultural
> Research (CGIAR).
>
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Arthur Gilmour PhD mailto:Arthur.Gilmour@agric.nsw.gov.au
Principal Research Scientist (Biometrics) fax: <61> 2 6391 3899
NSW Agriculture <61> 2 6391 3922
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