Veterinary herbal medicine importers in Europe are: UK, Latvia, Italy, Turkey, Ukraine, Spain, Ireland, Poland, Kosovo. Tools are usually the same as human's. If there's s need of a special one, it is created in the country or imported from somewhere else. But for a country to import many of them, it is rather Africa, that is already a continent, that is rich in longer and taller animals, but I suppose they can crate the tool by themselves, they just know better what they need.
It is a hard one. I did not find any concrete information on your question. But I found such companies as Zoetis, Merck Animal Health, Merial, Elanco and Bayer Animal health. These are the largest veterinary companies in the world. Maybe this information will be useful for you. For more, click here http://www.fierceanimalhealth.com/special-reports/top-10-animal-health-companies-2013