This is the standard reference book for Vets and Zookeepers.
http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/cat_tbl_200000.htm The link is to the "Poultry", chapter, but the remainder of the manual is available, chapter-by-chapter from the left navigation bar.
If you have livestock, or pets, it is worthy of making a bookmark.
Enjoy!