I came accross this site in my bookmarks

[Trefoil]

I probably got it from here, but in case anyone is interested. Its a starter on poultry medicines.
https://sites.google.com/a/poultrypedia.com/poultrypedia/medicine-chart

 

[casportpony]

That's a pretty good one and it looks like many of the errors have been fixed.

-Kathy