What Pedigree Viewer can do

The program reads your simple data file and displays the full pedigree
structure on the screen.  Each animal is represented by its 
identity, or its name, or by its value for any of the traits in the data file. 

You can display a large pedigree of thousands of animals all on the screen
at the same time.  Data are overlapped on the screen for 
such large pedigrees, but in one mode an individual's information is
highlighted as the mouse cursor passes over.  You can ask to 
find an animal(s) by identity, or by merit or merit range for a given trait.
A single click changes between fields in the data file, or 
displays just relatives (of chosen degree, and/or all ancestors, and/or all
descendants) of the animal clicked.  With one more click you can then
organise the pedigree picture to  be most clear for just those animals. 

Animals of high merit can be shaded more brightly, giving quick access to
those with high merit.  You can also zoom into interesting 
parts of the pedigree, change the font displaying data, check for logical
errors, alter the display of pedigree links and make other 
manipulations to give a suitable display, and print the result.

Inbreeding coefficients and BLUP estimates of breeding value can be
calculated and added to the list of displayable data.

The program can be useful for navigating around a pedigreed data set to get
a feel for its structure and any problems it might 
contain.  Embryo transfer matings are usually easy to spot.  By shading
fields and possibly sorting horizontally, phenotypic and EBV 
trends can be quite noticeable.

The program runs under Windows 3.1 on IBM compatible machines.  A 
mouse is essential and colour is recommended.