Thank you very much! I'll try it.
Mike
> Dear Mike,
>
>
> From the information you supply, ASREML can handle the problem for a moderate
> (say < 40,000) calves. From your description, I presume you will prepare a sire
> pedigree file (which includes all sires and maternal grandsires)
>
> i.e. sire.ped contains 3 fields
> sire sire_of_sire dam or mgs
>
> Assuming I understand the model you want (as there are many possabilities)
> the ASREML job might be something like
>
> Still birth study
> calf
> sire !P
> mgs !P
> sex 2
> hys 2222 # where 2222 is number of HYS
> stillbirth
> sire.ped !skip 1 # !mgs
> calf.dat
>
> stillbirth ~ sex !r sire mgs !f hys # Normal trait
> or
>
> stillbirth !bin ~ sex !r sire mgs !f hys # Binomial trait
>
>
>
> I would fit this first, and when you have values for the
> sire and mgs variance components, extend the model to estimate their
> covariance by appending
>
> 0 0 1
> sire 2
> 2 0 US s-s s-mgs mgs-mgs
> sire 0 AINV
>
> where s-s is replaced by the sire variance component,
> s-mgs by the covariance
> mgs-mgs by the maternal variance component.
>
>
>
> > X-Authentication-Warning: lamb.chiswick.anprod.csiro.au: petidomo set sender
> to asreml-owner@ram.chiswick.anprod.csiro.au using -f
> > From: "Mingfeng Luo" <MLUO@aps.uoguelph.ca>
> > To: asreml@ram.chiswick.anprod.csiro.au
> > Date: Wed, 9 Jun 1999 10:33:15 EDT
> > Subject: AS-REML for stillbirth
> >
> > I try to estimate the genetic parameters of stillbirth of dairy
> > cattle cattle. The model includes the sex effect of calf, HYS as
> > random effects, sire and maternal grandsire as random genetic
> > effects.
> >
> > Can AS-REML this problem?
> >
> > Thanks in advance.
> >
> >
> > Mike Luo
> > **********************************
> > * Mike F. Luo *
> > * Animal & Poultry Science *
> > * Unversity of Guelph *
> > * Guelph, ON, N1G 2W1 *
> > * Tel: (519)824-4120 X 8354 *
> > * Fax: (519)767-0573 *
> > **********************************
> >
> >
> > --
> > Asreml mailinglist archive: http://www.chiswick.anprod.csiro.au/lists/asreml
>
>
> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
> Arthur Gilmour PhD mailto:Arthur.Gilmour@agric.nsw.gov.au
> Senior Research Scientist (Biometrics) fax: <61> 2 6391 3899
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>
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>
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> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
>
>
> **********************************
* Mike F. Luo *
* Animal & Poultry Science *
* Unversity of Guelph *
* Guelph, ON, N1G 2W1 *
* Tel: (519)824-4120 X 8354 *
* Fax: (519)767-0573 *
**********************************
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