Breeds of Livestock This is an Oklahoma State University collection of annotated images of breeds of domesticated animals including cattle, horses, goats, sheep, swine, poultry.
CSIRO Sheep Images On their home page, clicking on "Sheep" opens a collection of images relating to the management of sheep.
Embryology This site contains a comprehensive collection of embryology images, especially of humans. On the site home Main Page, click on "Animals" in the left hand ladder to open sets of images on the embryology of animals including cattle, chickens, pigs and sheep.
Reproduciton in Domesticated Animals Clicking on "Guides" on the home page of this site opens comprehensive collections of images relating to reproduction in cattle, buffalo, dogs, goats, horses, sheep and pigs, intended principally for veterinarians.
Veterinary Pathology This is a comprehensive collection of over 10,000 veterinary pathology images of diseased or injured organs and tissues, most with annotations.